Friday Harbor, Washington Weather Conditions

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Current Conditions

  • 55°
  • Mostly Cloudy
  • Wind: East 5 mph
  • Humidity: 51%
  • Visibility: 10.0 miles
  • Dew Point: 37°
  • Pressure: 30.18 in. -

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Next 12 Hours

8  pm
11  pm
2  am
5  am
8  am
Mostly Cloudy
Mostly Cloudy
Mostly Cloudy
Mostly Cloudy
Mostly Cloudy
Mostly Cloudy
Chance of Rain
Chance of Rain
Chance of Rain
Chance of Rain
52°
46°
45°
43°
46°
Forecast data from the National Digital Forecast Database.

5 Day Forecast

  • Sunday
  • Mostly Cloudy
  • High: 57 °
  • Low: 43 °
  • Mostly Cloudy
  • Monday
  • Chance of Rain
  • High: 57 °
  • Low: 45 °
  • Chance of Rain
  • Tuesday
  • Rain Showers
  • High: 54 °
  • Low: 41 °
  • Rain Showers
  • Wednesday
  • Rain
  • High: 54 °
  • Low: 43 °
  • Rain
  • Thursday
  • Chance of Rain
  • High: 54 °
  • Low: 43 °
  • Chance of Rain

Forecast for Friday Harbor, Washington

Updated: 8:00 PM PDT on April 20, 2014

  • Sunday

    Partly cloudy in the morning, then overcast. High of 57F. Breezy. Winds from the SE at 15 to 20 mph.

  • Sunday Night

    Mostly cloudy with a chance of rain after midnight. Low of 43F. Winds from the SE at 5 to 15 mph shifting to the NNE after midnight.

  • Monday

    Overcast with a chance of rain. High of 57F. Winds from the WNW at 5 to 10 mph shifting to the SW in the afternoon. Chance of rain 60%.

  • Monday Night

    Overcast with rain showers. Low of 45F. Winds from the West at 5 to 10 mph. Chance of rain 60% with rainfall amounts near 0.2 in. possible.

  • Tuesday

    Overcast with a chance of rain, then rain showers in the afternoon. High of 54F. Breezy. Winds from the WSW at 20 to 25 mph. Chance of rain 60%.

  • Tuesday Night

    Mostly cloudy with rain showers. Low of 41F. Winds from the West at 5 to 20 mph shifting to the South after midnight. Chance of rain 60%.

  • Wednesday

    Mostly cloudy with a chance of rain, then rain in the afternoon. High of 54F. Winds less than 5 mph. Chance of rain 40%.

  • Wednesday Night

    Partly cloudy in the evening, then overcast. Low of 43F. Breezy. Winds from the ESE at 10 to 20 mph.

  • Thursday

    Overcast with a chance of rain. High of 54F. Breezy. Winds from the East at 10 to 20 mph. Chance of rain 70% with rainfall amounts near 0.2 in. possible.

  • Thursday Night

    Mostly cloudy with a chance of rain. Fog overnight. Low of 43F. Winds less than 5 mph. Chance of rain 40%.

  • Friday

    Overcast. High of 52F. Winds less than 5 mph.

  • Friday Night

    Partly cloudy. Fog overnight. Low of 41F. Winds from the South at 5 to 15 mph.

  • Saturday

    Partly cloudy with a chance of rain. High of 54F. Winds from the SSE at 10 to 15 mph. Chance of rain 20%.

  • Saturday Night

    Partly cloudy with a chance of rain. Low of 41F. Breezy. Winds from the SE at 10 to 25 mph. Chance of rain 40%.

  • Sunday

    Mostly cloudy with a chance of rain. High of 55F. Breezy. Winds from the SE at 10 to 20 mph. Chance of rain 20%.

  • Sunday Night

    Mostly cloudy with a chance of rain. Fog overnight. Low of 43F. Breezy. Winds from the SE at 20 to 25 mph. Chance of rain 70% with rainfall amounts near 0.3 in. possible.

  • Monday

    Mostly cloudy with a chance of a thunderstorm. High of 55F. Winds from the SSE at 5 to 10 mph. Chance of rain 40%.

  • Monday Night

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

  • Tuesday

    Partly cloudy. High of 55F. Winds less than 5 mph.

  • Tuesday Night

    Partly cloudy. Low of 46F. Winds less than 5 mph.

  • Wednesday

    Partly cloudy. High of 59F. Winds less than 5 mph.

  • Wednesday Night

    Partly cloudy. Fog overnight. Low of 45F. Winds less than 5 mph.

  • Thursday

    Clear. High of 59F. Winds less than 5 mph.

Personal Weather Stations

Personal Weather Stations [Add your weather station!]

Location: San Juan Wx, Friday Harbor, WA

Updated: 6:44 PM PDT

Temperature: 53.8 °F Dew Point: 39 °F Humidity: 57% Wind: ESE at 3.7 mph Pressure: 30.06 in Hourly Precipitation: - Graphs

Location: Crane Island (North Side), Deer Harbor, WA

Updated: 6:54 PM PDT

Temperature: 53.6 °F Dew Point: 42 °F Humidity: 66% Wind: Calm Pressure: 30.13 in Hourly Precipitation: 0.00 in Graphs

Location: Roche Harbor, WA

Updated: 6:58 PM PDT

Temperature: 53.0 °F Dew Point: 42 °F Humidity: 67% Wind: Calm Pressure: 30.18 in Hourly Precipitation: 0.00 in Graphs

Location: 660 feet south of Spieden Channel, Friday Harbor, WA

Updated: 6:33 PM PDT

Temperature: 52.6 °F Dew Point: 42 °F Humidity: 66% Wind: Calm Pressure: 30.24 in Hourly Precipitation: 0.00 in Graphs

Location: Pearl Island, Roche Harbor, WA

Updated: 6:59 PM PDT

Temperature: 53.5 °F Dew Point: 48 °F Humidity: 83% Wind: Calm Pressure: 30.02 in Hourly Precipitation: 0.00 in Graphs

Location: Lopez Island, WA, Lopez Island, WA

Updated: 6:58 PM PDT

Temperature: 54.0 °F Dew Point: 38 °F Humidity: 54% Wind: Calm Pressure: 30.04 in Hourly Precipitation: 0.00 in Graphs

Location: Westsound, Eastsound, WA

Updated: 6:56 PM PDT

Temperature: 55.4 °F Dew Point: 41 °F Humidity: 59% Wind: NE at 1.6 mph Pressure: 30.24 in Hourly Precipitation: 0.00 in Graphs

Location: Lopez Island, WA

Updated: 6:59 PM PDT

Temperature: 54.0 °F Dew Point: 40 °F Humidity: 58% Wind: Calm Pressure: 30.19 in Hourly Precipitation: 0.00 in Graphs

Location: Waldron Island, Eastsound, WA

Updated: 6:53 PM PDT

Temperature: 52.4 °F Dew Point: 38 °F Humidity: 58% Wind: NE at 6.0 mph Pressure: 30.34 in Hourly Precipitation: 0.00 in Graphs

Location: Decatur Shores, Decatur Island, WA

Updated: 6:59 PM PDT

Temperature: 53.6 °F Dew Point: 40 °F Humidity: 60% Wind: Calm Pressure: 30.03 in Hourly Precipitation: 0.00 in Graphs

Location: Gordon Head, Victoria

Updated: 6:59 PM PDT

Temperature: 52.5 °F Dew Point: 41 °F Humidity: 64% Wind: Calm Pressure: 30.13 in Hourly Precipitation: 0.00 in Graphs

Location: West Slope Mount Constitution - Orcas Island, Eastsound, WA

Updated: 6:58 PM PDT

Temperature: 50.7 °F Dew Point: 37 °F Humidity: 59% Wind: East at 6.0 mph Pressure: 30.16 in Hourly Precipitation: 0.00 in Graphs

Location: Mount Tolmie, Victoria

Updated: 6:45 PM PDT

Temperature: 54.7 °F Dew Point: 37 °F Humidity: 51% Wind: North at 1.6 mph Pressure: 29.96 in Hourly Precipitation: 0.00 in Graphs

Location: Cedar Hill X - Uvic, Victoria

Updated: 6:51 PM PDT

Temperature: 55.0 °F Dew Point: 38 °F Humidity: 53% Wind: Calm Pressure: - Hourly Precipitation: - Graphs

Location: Hillside, Victoria

Updated: 6:59 PM PDT

Temperature: 53.4 °F Dew Point: 41 °F Humidity: 63% Wind: NNE at 3.0 mph Pressure: 30.22 in Hourly Precipitation: 0.00 in Graphs

Location: Oak Bay, Victoria

Updated: 6:55 PM PDT

Temperature: 54.2 °F Dew Point: 44 °F Humidity: 67% Wind: Calm Pressure: 30.14 in Hourly Precipitation: 0.00 in Graphs

Location: Broadmead, Victoria

Updated: 6:50 PM PDT

Temperature: 54.4 °F Dew Point: 42 °F Humidity: 62% Wind: Calm Pressure: 30.15 in Hourly Precipitation: 0.00 in Graphs

Location: Victoria

Updated: 6:55 PM PDT

Temperature: 54.0 °F Dew Point: 42 °F Humidity: 65% Wind: ENE at 2.0 mph Pressure: 30.16 in Hourly Precipitation: 0.00 in Graphs

Location: Glanford Park, Victoria

Updated: 6:50 PM PDT

Temperature: 54.2 °F Dew Point: 41 °F Humidity: 61% Wind: North at 1.6 mph Pressure: 30.07 in Hourly Precipitation: - Graphs

Location: Royal Oak, Victoria

Updated: 6:59 PM PDT

Temperature: 53.1 °F Dew Point: 42 °F Humidity: 67% Wind: Calm Pressure: 30.14 in Hourly Precipitation: 0.00 in Graphs

Location: Central Saanich, Saanichton

Updated: 6:59 PM PDT

Temperature: 55.0 °F Dew Point: 30 °F Humidity: 38% Wind: Calm Pressure: 30.18 in Hourly Precipitation: 0.00 in Graphs

Location: Esquimalt Central - Fernhill, Victoria

Updated: 6:59 PM PDT

Temperature: 54.7 °F Dew Point: 41 °F Humidity: 60% Wind: Calm Pressure: 30.13 in Hourly Precipitation: 0.00 in Graphs

Location: MARITIME , Esquimalt Harbour

Updated: 5:00 PM PDT

Temperature: 51 °F Dew Point: 41 °F Humidity: 68% Wind: SW at 9 mph Pressure: 30.21 in Hourly Precipitation: 0.00 in Graphs

Location: Highlands, Victoria

Updated: 6:57 PM PDT

Temperature: 50.5 °F Dew Point: 42 °F Humidity: 74% Wind: Calm Pressure: 30.16 in Hourly Precipitation: 0.00 in Graphs

Location: Doon Way - Anacortes, WA

Updated: 6:52 PM PDT

Temperature: 57.9 °F Dew Point: 40 °F Humidity: 51% Wind: ESE at 4.0 mph Pressure: 30.15 in Hourly Precipitation: 0.00 in Graphs

Location: Ship Harbor, Anacortes, WA

Updated: 6:55 PM PDT

Temperature: 56.6 °F Dew Point: 39 °F Humidity: 52% Wind: East at 2.0 mph Pressure: 30.19 in Hourly Precipitation: 0.00 in Graphs

Location: Anacortes Airport, Anacortes, WA

Updated: 6:59 PM PDT

Temperature: 56.5 °F Dew Point: 40 °F Humidity: 53% Wind: Calm Pressure: 30.17 in Hourly Precipitation: 0.00 in Graphs

Location: Saanich Peninsula, Central Saanich

Updated: 6:59 PM PDT

Temperature: 52.3 °F Dew Point: 46 °F Humidity: 80% Wind: Calm Pressure: 30.10 in Hourly Precipitation: 0.00 in Graphs

Location: Iron Mountain, Anacortes, WA

Updated: 6:59 PM PDT

Temperature: 59.3 °F Dew Point: 40 °F Humidity: 49% Wind: East at 3.0 mph Pressure: 30.16 in Hourly Precipitation: 0.00 in Graphs

MSN Maps of:

Temp: Dew Point: Humidity Wind Pressure Hr Precip -

NWS Forecaster Discussion




Area forecast discussion 
National Weather Service Seattle Washington 
250 PM PDT sun Apr 20 2014 


Synopsis...an upper level ridge of high pressure aloft and surface 
high pressure over Washington will give mainly dry weather to the 
area through tonight. However...a stationary front over the coastal 
waters will bring a chance of light showers to the coast tonight. 
There will be a chance of showers on Monday as the air mass becomes 
unstable across the area. The offshore front will move inland Monday 
night. Additional weather systems will give cool and unsettled 
weather through next weekend. 


&& 


Short term...a weak upper level ridge over eastern Washington this 
afternoon will continue to amplify as it shifts eastward into 
western Montana. An upper level trough over the eastern Pacific 
along 145w is also amplifying. The combination of these larger scale 
features is resulting in a frontal system in the offshore waters 
stalling off the coast and becoming more north-south oriented with 
time. This front will remain offshore through Monday. 


Radars do show rain offshore...and a few showers have popped up 
over the olympic peninsula this afternoon. The showers on the coast 
are moving northward and should pretty much clear out of the 
area...with the exception of the immediate coastline...this evening. 
A batch of mainly high clouds splitting eastward from the offshore 
front will push east out of the area this evening. Some brief 
clearing may allow temperatures to drop into the upper 30s in some 
normally colder locations in the interior tonight. Swell on the 
coast has started to drop off...it is now 16-18 feet. The high surf 
advisory on the coast will be maintained until 9 PM this evening. 


While the front is expected to remain offshore on Monday...the 
combination of some destabilization of the lower and middle levels 
during the day combined with the development of a diffluent south-southwest flow 
aloft will allow some showers to form on Monday...mainly in the 
afternoon. The shower activity will become more widespread Monday 
night as the front and its associated upper trough finally drags 
inland. 


Cool onshore flow with the upper trough on Tuesday will contribute 
to the formation of convergence zone activity in the interior. With 
the shower activity and cooling aloft...temperatures will remain in 
the 50s on Tuesday. 


The large scale models have converged on a solution for Tuesday 
night into Wednesday. They generally show the upper low now near 50n 
148w shifting east-southeast into the area late Tuesday night as a 538-540 dam 500 
mb low and resulting in rather high probability of precipitation across the area. Wednesday looks 
like a mixed bag with weak ridging and onshore flow giving some sun 
breaks to the north but with a continued chance of showers. A warm 
front will approach the area from the SW late in the day Wednesday for 
increasing precipitation over southern portions of the forecast 
area. 


Temperatures across the region through Wednesday will average a few 
degrees below normal. Albrecht 


Long term...large scale models bring a wetter and more organized 
frontal system across the area Wednesday night through Thursday or Thursday night. 
Per conversations with NESDIS...this system...currently near the 
international dateline...has some tap to subtropical moisture from 
the western Pacific and may result in some moderate precipitation 
amounts. This has been advertised by all of the global models for 
several days now. Behind that system...mean upper troughing over the 
eastern Pacific will maintain cooler and wetter than average 
conditions for late April. Albrecht 


&& 


Hydrology...river flooding is unlikely for the next 7 days. 


The exception is the North Fork of the stillaguamish river east of 
the sunrise 530 landslide near Oso where a Flood Warning remains in 
effect until further notice. Flooding continues for this river as a 
result of water pooled behind the debris dam that partially blocks 
the river. 


At 230 PM...the North Fork of the stillaguamish near Arlington is 
at 5.5 feet...or 4195 cfs. The river will recede to around 4.5 feet 
late Monday afternoon. The North Fork of the stillaguamish river 
near Oso is at 217.0 feet or 2100 cfs. The river will recede through 
late Monday. The slide pool east of the landslide is at 284.2 feet. 
It will also slowly recede through Monday. Albrecht 


&& 


Aviation...upper level high pressure will traverse the Pacific northwest 
today. A low pressure trough will develop offshore tonight and reach 
western Washington on Monday. Light to moderate S-SW flow aloft. Lower levels 
will remain dry into tonight...although moisture aloft will still be 
present. Lower levels will begin to moisten up tomorrow morning in 
advance of weak front expected to move through tomorrow. Ceilings 
expected to remain VFR for much of western Washington into the day tomorrow. 


Ksea...ceilings expected to remain above 5k feet tonight and into 
tomorrow. Southerly wind to 10 knots...shifting to the northwest tomorrow 
afternoon. Smr 


&& 


Marine...a weakening cold front will move over the coastal waters 
this afternoon and tonight...dissipating as it pushes onshore. South 
to southeasterly small craft winds are expected over the coastal 
waters/West Entrance to the Strait ahead of the front this evening. 


Large swell of 17 to 20 feet will impact the coast late this 
afternoon...then slowly subside tonight. Swells look to still exceed 
Small Craft Advisory for hazardous seas criteria well into 
tomorrow...so will issue an advisory to follow up the one already in 
effect for winds for the afternoon forecast package. A high surf 
advisory remains in effect for the coast. Observation indicate that high 
surf might last a little longer than originally thought. Thus...will 
extend advisory a few hours. If for no other reason...will give next 
shift a chance to look things over and evaluate the situation. Smr 


&& 


Sew watches/warnings/advisories... 
Washington...Flood Warning remains in effect for the North Fork of the 
stillaguamish river east of the sunrise 530 landslide. 
High surf advisory north and central coast through 
this evening. 


Pz...Small Craft Advisory coast and west Strait of Juan Delaware fuca 
through Monday evening. 
Small Craft Advisory for rough Grays Harbor bar through noon 
Monday. 


&& 


$$ 


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