Olympia, Washington Weather Conditions

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Current Conditions

  • 47°
  • Overcast
  • Wind: WSW 4 mph
  • Humidity: 93%
  • Visibility: 10.0 miles
  • Dew Point: 45°
  • Pressure: 29.85 in. -

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Next 12 Hours

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Forecast data from the National Digital Forecast Database.

5 Day Forecast

  • Thursday
  • Rain
  • High: 54 °
  • Low: 39 °
  • Rain
  • Friday
  • Rain
  • High: 52 °
  • Low: 39 °
  • Rain
  • Saturday
  • Rain
  • High: 52 °
  • Low: 48 °
  • Rain
  • Sunday
  • Chance of Rain
  • High: 59 °
  • Low: 46 °
  • Chance of Rain
  • Monday
  • Fog
  • High: 54 °
  • Low: 41 °
  • Fog

Forecast for Olympia, Washington

Updated: 7:00 AM PST on December 18, 2014

  • Thursday

    Overcast with a chance of rain, then rain in the afternoon. High of 54F. Winds from the South at 5 to 15 mph. Chance of rain 80%.

  • Thursday Night

    Overcast with rain. Low of 39F. Breezy. Winds from the SSW at 15 to 20 mph. Chance of rain 90% with rainfall amounts near 0.4 in. possible.

  • Friday

    Overcast with rain, then rain showers in the afternoon. High of 52F. Winds from the SSW at 10 to 15 mph. Chance of rain 90%.

  • Friday Night

    Overcast with rain showers, then rain after midnight. Low of 39F. Breezy. Winds from the South at 10 to 20 mph. Chance of rain 70%.

  • Saturday

    Overcast with rain. High of 52F. Breezy. Winds from the SSW at 20 to 25 mph. Chance of rain 70% with rainfall amounts near 0.5 in. possible.

  • Saturday Night

    Overcast with a chance of rain. Fog overnight. Low of 48F. Winds from the SSW at 10 to 15 mph. Chance of rain 60% with rainfall amounts near 0.5 in. possible.

  • Sunday

    Overcast with a chance of rain. High of 59F. Winds from the SW at 10 to 15 mph. Chance of rain 60%.

  • Sunday Night

    Overcast with a chance of rain. Fog overnight. Low of 46F. Winds from the SW at 5 to 15 mph. Chance of rain 20%.

  • Monday

    Mostly cloudy in the morning, then overcast. Fog early. High of 54F. Winds from the SW at 5 to 10 mph.

  • Monday Night

    Overcast with a chance of rain. Fog overnight. Low of 41F. Winds less than 5 mph. Chance of rain 20%.

  • Tuesday

    Overcast. High of 50F. Winds less than 5 mph.

  • Tuesday Night

    Overcast. Low of 37F. Winds less than 5 mph.

  • Wednesday

    Partly cloudy. High of 48F. Winds less than 5 mph.

  • Wednesday Night

    Clear. Low of 30F. Winds less than 5 mph.

  • Thursday

    Clear. High of 46F. Winds less than 5 mph.

  • Thursday Night

    Clear. Low of 25F. Winds less than 5 mph.

  • Friday

    Clear. High of 41F. Winds less than 5 mph.

  • Friday Night

    Clear. Low of 30F. Winds less than 5 mph.

  • Saturday

    Partly cloudy with a chance of rain. High of 43F. Winds less than 5 mph. Chance of rain 20%.

  • Saturday Night

    Mostly cloudy with a chance of snow. Low of 30F. Winds less than 5 mph. Chance of snow 40% with accumulations up to 1 in. possible.

  • Sunday

    Partly cloudy with a chance of rain. High of 46F. Winds less than 5 mph. Chance of rain 50%.

  • Sunday Night

    Clear. Fog overnight. Low of 30F. Winds less than 5 mph.

Personal Weather Stations

Personal Weather Stations [Add your weather station!]

Location: East Olympia, Olympia, WA

Updated: 12:41 PM PST

Temperature: 46.8 °F Dew Point: 47 °F Humidity: 100% Wind: Calm Pressure: 29.83 in Hourly Precipitation: 0.00 in Windchill: 47 °F Graphs

Location: Ward Lake, Olympia, WA

Updated: 12:55 PM PST

Temperature: 46.4 °F Dew Point: 46 °F Humidity: 97% Wind: Calm Pressure: 29.67 in Hourly Precipitation: 0.00 in Windchill: 46 °F Graphs

Location: Bridlewood, Olympia, WA

Updated: 12:50 PM PST

Temperature: 46.9 °F Dew Point: 47 °F Humidity: 99% Wind: Calm Pressure: 29.85 in Hourly Precipitation: 0.00 in Windchill: 47 °F Graphs

Location: Nut Tree, Olympia, WA

Updated: 12:55 PM PST

Temperature: 47.1 °F Dew Point: 47 °F Humidity: 98% Wind: Calm Pressure: 29.85 in Hourly Precipitation: 0.00 in Windchill: 47 °F Graphs

Location: Grant St. - Tumwater Hill, Tumwater, WA

Updated: 12:39 PM PST

Temperature: 46.8 °F Dew Point: -7 °F Humidity: - Wind: Calm Pressure: 29.96 in Hourly Precipitation: 0.00 in Windchill: 47 °F Graphs

Location: Lakeside Estates, Tumwater, WA

Updated: 12:38 PM PST

Temperature: 47.5 °F Dew Point: 46 °F Humidity: 94% Wind: Calm Pressure: 29.56 in Hourly Precipitation: 0.01 in Windchill: 48 °F Graphs

Location: 93rd Avenue, Olympia, WA

Updated: 12:55 PM PST

Temperature: 47.1 °F Dew Point: 45 °F Humidity: 93% Wind: Calm Pressure: 29.83 in Hourly Precipitation: 0.00 in Windchill: 47 °F Graphs

Location: Countryside, Tumwater, WA

Updated: 12:55 PM PST

Temperature: 46.8 °F Dew Point: 47 °F Humidity: 100% Wind: Calm Pressure: 29.86 in Hourly Precipitation: 0.00 in Windchill: 47 °F Graphs

Location: West Olympia KA7FRZ, Olympia, WA

Updated: 12:54 PM PST

Temperature: 48.6 °F Dew Point: 40 °F Humidity: 72% Wind: SW at 3.5 mph Pressure: 29.84 in Hourly Precipitation: 0.00 in Windchill: 48 °F Graphs

Location: Bauer Elkridge, Olympia, WA

Updated: 12:55 PM PST

Temperature: 46.8 °F Dew Point: 46 °F Humidity: 98% Wind: Calm Pressure: 29.86 in Hourly Precipitation: 0.00 in Windchill: 47 °F Graphs

Location: Beautiful Downtown Lacey, Lacey, WA

Updated: 12:55 PM PST

Temperature: 47.6 °F Dew Point: 48 °F Humidity: 100% Wind: Calm Pressure: 29.81 in Hourly Precipitation: 0.00 in Windchill: 48 °F Graphs

Location: Belmore / Black Hawk, Tumwater, WA

Updated: 12:52 PM PST

Temperature: 46.9 °F Dew Point: 46 °F Humidity: 98% Wind: Calm Pressure: 29.82 in Hourly Precipitation: 0.01 in Windchill: 47 °F Graphs

Location: Shock, Lacey, WA

Updated: 12:42 PM PST

Temperature: 47.7 °F Dew Point: 47 °F Humidity: 96% Wind: WSW at 1.1 mph Pressure: 29.85 in Hourly Precipitation: - Windchill: 48 °F Graphs

Location: Ken Lake, Olympia, WA

Updated: 12:51 PM PST

Temperature: 48.0 °F Dew Point: 48 °F Humidity: 99% Wind: Calm Pressure: - Hourly Precipitation: 0.00 in Windchill: 48 °F Graphs

Location: Swantown Marina, Olympia, WA

Updated: 12:55 PM PST

Temperature: 47.1 °F Dew Point: 45 °F Humidity: 92% Wind: Calm Pressure: 29.76 in Hourly Precipitation: 0.01 in Windchill: 47 °F Graphs

Location: Amongst the Lakes of Lacey, Washington, Lacey, WA

Updated: 12:55 PM PST

Temperature: 46.6 °F Dew Point: 46 °F Humidity: 99% Wind: Calm Pressure: 30.05 in Hourly Precipitation: 0.00 in Windchill: 47 °F Graphs

Location: MBLFD Station 95 - Black Lake Station, Olympia, WA

Updated: 12:40 PM PST

Temperature: 48.1 °F Dew Point: 46 °F Humidity: 92% Wind: Calm Pressure: 29.61 in Hourly Precipitation: 0.00 in Windchill: 48 °F Graphs

Location: Woodbury Crossing, Olympia, WA

Updated: 12:55 PM PST

Temperature: 48.4 °F Dew Point: 48 °F Humidity: 98% Wind: Calm Pressure: 29.62 in Hourly Precipitation: - Windchill: 48 °F Graphs

Location: Mountain Aire, Lacey, WA

Updated: 12:50 PM PST

Temperature: 46.5 °F Dew Point: 46 °F Humidity: 99% Wind: Calm Pressure: 29.83 in Hourly Precipitation: 0.00 in Windchill: 46 °F Graphs

Location: MBLFD Station 91 - Mud Bay Headquarters, Olympia, WA

Updated: 12:40 PM PST

Temperature: 46.1 °F Dew Point: -8 °F Humidity: - Wind: Calm Pressure: 29.51 in Hourly Precipitation: 0.00 in Windchill: 46 °F Graphs

Location: Meridian Road Southeast, Olympia, WA

Updated: 12:51 PM PST

Temperature: 45.3 °F Dew Point: 45 °F Humidity: 100% Wind: North at - Pressure: 29.89 in Hourly Precipitation: 0.00 in Windchill: 45 °F Graphs

Location: Piperhill Drive Southeast, Olympia, WA

Updated: 12:50 PM PST

Temperature: 46.8 °F Dew Point: 46 °F Humidity: 98% Wind: North at - Pressure: 30.44 in Hourly Precipitation: - Windchill: 47 °F Graphs

Location: Country Club Estates, Olympia, WA

Updated: 12:55 PM PST

Temperature: 47.7 °F Dew Point: 47 °F Humidity: 99% Wind: South at 1.6 mph Pressure: 30.01 in Hourly Precipitation: 0.00 in Windchill: 48 °F Graphs

Location: Maytown Weather Village, Maytown-Tenino, WA

Updated: 12:55 PM PST

Temperature: 48.0 °F Dew Point: 46 °F Humidity: 91% Wind: Calm Pressure: 31.38 in Hourly Precipitation: 0.00 in Windchill: 48 °F Graphs

Location: Willa St, Olympia, WA

Updated: 12:43 PM PST

Temperature: 46.4 °F Dew Point: 46 °F Humidity: 99% Wind: Calm Pressure: 29.76 in Hourly Precipitation: - Windchill: 46 °F Graphs

Location: Campus Meadows, Lacey, WA

Updated: 12:54 PM PST

Temperature: 46.5 °F Dew Point: 46 °F Humidity: 100% Wind: Calm Pressure: 29.81 in Hourly Precipitation: 0.00 in Windchill: 46 °F Graphs

Location: Eld Inlet - Shock, Olympia, WA

Updated: 12:50 PM PST

Temperature: 47.5 °F Dew Point: 47 °F Humidity: 97% Wind: WNW at 1.1 mph Pressure: 29.84 in Hourly Precipitation: - Windchill: 48 °F Graphs

Location: Littlerock, Littlerock, WA

Updated: 12:55 PM PST

Temperature: 47.1 °F Dew Point: 46 °F Humidity: 97% Wind: Calm Pressure: 29.86 in Hourly Precipitation: 0.01 in Windchill: 47 °F Graphs

Location: Tenino, WA, Tenino, WA

Updated: 12:55 PM PST

Temperature: 49.2 °F Dew Point: 47 °F Humidity: 91% Wind: Calm Pressure: 29.85 in Hourly Precipitation: 0.00 in Windchill: 49 °F Graphs

MSN Maps of:

Temp: Dew Point: Humidity Wind Pressure Hr Precip -

NWS Forecaster Discussion




Area forecast discussion...updated 
National Weather Service Seattle Washington 
935 am PST Thursday Dec 18 2014 


Updated advisories. 


Synopsis...an approaching frontal system will bring a chance of 
rain today...followed by more continuous rain tonight as the cold 
front moves inland. An upper level trough will bring scattered 
showers on Friday. Strong moist west flow aloft over the northeast 
Pacific will bring a windy and rainy pattern this weekend. A broad 
upper level ridge will remain over the region early next week for 
not quite as wet weather. 


&& 


Short term...radar and observation indicate showers across much of western Washington 
this morning. Although a weak upper ridge is traversing the area 
today...the flow remains moist and southerly. Buffer sounds show the air 
mass below 750 mb to be weakly unstable through midday so showers 
will continue through the morning and probably up the point when 
warm advection rain begins. 


Infrared satellite imagery and the coastal radar show more steady rain 
approaching the coast. This will spread inland late in the day. 
Brighter cloud tops appear to indicate some splitting already 
occuring with the front. A stronger portion is moving east-NE into 
b.C./WA and another portion pushing due east into Oregon. Models 
indicate the front holds together enough to produce more widespread 
rainfall than past systems this week but it will be in a weakening 
state as it arrives later today/early this evening. 


Quantitative precipitation forecast amounts on various mesoscale models generally average a half to one 
inch liquid in 12 hours from 00z-12z tonight over the mountains. 
Areas that predominately remain as snow through the event could see 
up to a foot of snow. Snow levels are the tricky part of the 
forecast as current pass temperatures are in the upper 20s with Ely 
gradient which may keep some passes cold for some time this evening. 
The main snow level is currently near 3500 feet based on the kuil 
freezing levels minus 1k feet. This will climb as warm advection 
precipitation overspreads the area by late today or this evening. 
Will go ahead and issue a Snow Advisory for 5 to 10 inch snow 
amounts but stressing the lower end amounts will fall at higher 
passes such as White Pass and Stevens Pass assuming some change over 
to rain or freezing rain as the front pushes across later tonight. 
Snoqualmie Pass will likely see snow change over to rain pretty 
quickly with less than a couple inches there. The front will 
actually help to mix the colder air out of the passes and raise snow 
levels there. However...the main free air snow levels will fall back 
to around 3000 feet Friday morning after lifting to 4500-5000 feet 
tonight. Ski resorts exposed to S/SW flow such as Mount Baker and 
Paradise should do best in this flow pattern if they remain as all 
snow with up to 10 inches in these areas. 


Lastly...windy conditions are expected to develop up north later this 
afternoon through this evening. Southeast gradients tighten and a mesoscale low 
will likely form around Port Angeles/Sequim. This should induce 
locally stronger southeast winds west/ gusts to 45 miles per hour across Admiralty 
Inlet...the San Juans...and exposed locations along the shores of 
western Whatcom County. Both the hrrr/nam12 Show Low end advisory winds 
and will plan to issue an advisory this morning for the late 
afternoon and evening hours. 


A moist onshore Post-frontal pattern develops Friday with weak 
instability in the lower levels. This should translate to showers 
for our area until the next system arrives. Latest 06z/12z models 
bring warm advection rain to the coast late Friday night...then 
overspreading the entire area by the middle morning hours on Saturday. 
Models continue to show a lot of flow so rainfall rates will be 
heavy along the S/SW facing slopes of the mountains...especially the 
Olympics. A trailing moisture Plum will become directed at western Washington by 
Saturday evening as the flow turns more westerly. This will generate 
additional orographically enhanced rain along the west/SW slopes of the 
Olympics/Cascades Saturday night into early Sunday. This could cause 
some minor flooding on prone rivers...see the latest Hydro 
discussion below for details. Southeast gradients will also be quite strong 
with the warm front. Areas from Admiralty Inlet northward will likely need 
a Wind Advisory and possibly the coast. Mercer 


Long term...no update from previous discussion...European model (ecmwf) and GFS show 
strong zonal flow continuing into early next week with a broad flat 
upper level ridge over the region. Lots of flow through the ridge 
will keep this a generally wet and breezy period through Sunday. The 
main problem will remain heavy rain Saturday night. Fairly strong 
westerly 850 mb flow will remain 30-45kt Saturday night into Sunday 
morning...then gradually diminish over the north and central part of 
West Washington Sunday afternoon. Stronger west flow will continue over northwest Oregon 
and the southern Washington Cascades. There could be another 2-3 inches of 
quantitative precipitation forecast over the central Cascades 12z Sunday through 12z Monday which 
could bring some Cascade rivers close to flood stage. 


The broad Flat Ridge maintains strong somewhat moist west flow aloft 
over the area Monday and Tuesday...but the air mass is drier for 
much less rain. GFS/European model (ecmwf) both bring an upper level shortwave trough 
across the area on Wednesday...then develop cool dry north flow aloft 
behind it for Thursday. We will see if this model agreement holds. 
Kam 


&& 


Hydrology...no update from previous discussion...river flooding is 
not expected through Friday night. A moist westerly flow pattern 
will develop Saturday and continue through Sunday night with heavy 
rain at times in the mountains. A strong warm front will cross the 
area Saturday with strong S flow over the Olympics becoming west by 
late afternoon. The strong west flow will reach the Cascades Saturday 
night. 2-3 inches of rain are expected over the Olympics and parts 
of the Cascades during the 24 hour period from 12z Saturday through 
12z Sunday. This could cause another round of flooding on the 
Skokomish River and prime some of the Cascade rivers. 


Low level west flow aloft over West Washington will diminish Sunday and Sunday 
night as the core of strongest winds slides down over northwest Oregon and 
the southern Washington Cascades. Still...another 2-3 inches of rain could 
fall over the central Cascades between 12z Sunday and 12z Monday. 
This added rainfall could push some of the more flood prone Cascade 
rivers close to flood stage. Kam 


&& 


Aviation...a strong Pacific frontal system over the offshore waters 
will move across the area tonight. Southwesterly flow aloft will 
increase and becoming strong this evening then becoming moderate on 
Friday. The air mass is moist and stable...it will become somewhat 
unstable late tonight and Friday. 


At 1630z a strong front around 130w is moving east. It will push 
across the area reaching the interior valleys just after 08z Friday 
then east of the Cascades by 12z. Pressure gradients are 
increasingly southeasterly in advance of the front...so despite rain 
bands offshore moving inland...ceilings will become predominately 
VFR. Expect ceilings and visibilities to deteriorate to MVFR along 
the coast midday and in the interior shortly after 00z this evening 
as precipitation develops and gradually increases with the approach 
of the front. 


There could be a short period of low level wind shear in the 
interior from about kpae southward for a few hours ahead of the 
front as winds at 2000 feet increase to south-southwest 40kt and surface winds 
remain southeasterly. 


Post frontal onshore flow with scattered showers are expected behind 
the front late tonight and Friday with MVFR conditions and some 
clearing at times in the Lee of the Olympics. Isolated thunderstorms 
are not out of the question along the coast on Friday as cold air 
aloft arrives with an upper level trough. Albrecht 


Ksea...expect broken-ovc040-050 today. Periods of -ra will develop this 
afternoon. Ceilings will gradually lower to MVFR this evening with 
ceilings bottoming out around 015 a couple hours ahead of frontal 
passage 08z-10z Friday. Expect southeast wind 5 knots to increase to 9-11 knots 
this evening then shift to S 10-14 knots behind the front 08z-10z. 
There will be a couple hours of wind 18035-40kt at fl020 ahead of 
the incoming front about 06z-08z time period. Albrecht 


&& 


Marine...a front associated with a 968 mb low well west of haida 
gwaii will move through the offshore waters today...then inland 
tonight. A period of gale force winds can be expected over the 
coastal waters beginning midday today through this evening with 
Small Craft Advisory conditions for the Strait...northern inland 
waters...and Admiralty Inlet. Gale force winds are now expected at 
the East Entrance to the Strait of Juan Delaware fuca this afternoon and 
tonight as a mesoscale low develops to the northeast of the 
Olympics. 


Expect moderate to strong onshore flow behind the front and with a 
surface trough as it moves across the area on Friday. Small Craft 
Advisory conditions will continue over the coastal waters and 
possibly some of the interior zones. Isolated thunderstorms cannot 
be ruled out over the coastal waters on Friday in a rather unstable 
air mass. 


30-45 foot waves over a large area of the north central Pacific will 
decay to a long period 22-23 feet swell that will reach the coast 
Friday afternoon and continue to push onshore through Saturday. 
Tidal anomalies along the coast are just over 1 foot above normal 
and high tide occurs Saturday morning. If swell remains high into 
Saturday morning as currently expected...some coastal flooding is 
possible. A coastal Flood Watch may be required for portions of the 
coast for the Saturday morning high tide. 


Another strong front will arrive on Saturday with gale 
force winds once again likely over the coastal waters...the northern 
inland waters...and the Strait entrances. Albrecht 


&& 


Sew watches/warnings/advisories... 
Washington...Wind Advisory through tonight for the San Juan Islands... 
western Whatcom County...and the Admiralty Inlet area. 
Winter Weather Advisory through tonight for the Olympics. 
Winter Weather Advisory for the west slopes of the Cascades 
4 PM PST this afternoon through tonight. 
Pz...Gale Warning through tonight coastal waters and East Entrance. 
Small Craft Advisory all remaining waters. 
Small Craft Advisory for rough Grays Harbor bar tonight through 
Friday. 


&& 


$$ 


You can see an illustrated version of this forecast discussion at 
www.Weather.Gov/Seattle/gafd/latest_webafd.Html 




























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