Friday Harbor, Washington Weather Conditions

Your Weather

To update your location please enter your ZIP code, city, state, airport code or country in the field below. Weather by E-mail: Forecast storm alerts. Weather E-Mail Alert Sign Up »

Current Conditions

  • 65°
  • Mostly Cloudy
  • Wind: SE 9 mph
  • Humidity: 54%
  • Visibility: 10.0 miles
  • Dew Point: 48°
  • Pressure: 29.89 in. -

Select a Section

Click a section below for more information.

Next 12 Hours

2  pm
5  pm
8  pm
11  pm
2  am
Chance of Rain
Chance of Rain
Chance of Rain
Chance of Rain
Partly Cloudy
Partly Cloudy
Partly Cloudy
Partly Cloudy
Partly Cloudy
Partly Cloudy
62°
62°
57°
53°
51°
Forecast data from the National Digital Forecast Database.

5 Day Forecast

  • Wednesday
  • Chance of Rain
  • High: 65 °
  • Low: 48 °
  • Chance of Rain
  • Thursday
  • Chance of Rain
  • High: 62 °
  • Low: 48 °
  • Chance of Rain
  • Friday
  • Clear
  • High: 67 °
  • Low: 49 °
  • Clear
  • Saturday
  • Clear
  • High: 68 °
  • Low: 50 °
  • Clear
  • Sunday
  • Chance of Rain
  • High: 64 °
  • Low: 50 °
  • Chance of Rain

Forecast for Friday Harbor, Washington

Updated: 4:00 am PDT on September 2, 2015

  • Today

    Showers likely in the morning...then showers and a chance of thunderstorms in the afternoon. Rainfall amounts less than a tenth of an inch likely...except higher amounts possible in thunderstorms. Highs near 60. Southwest wind 10 to 20 mph.

  • Tonight

    Mostly cloudy with scattered showers and a chance of thunderstorms in the evening...then showers likely after midnight. Rainfall amounts less than a tenth of an inch likely... except higher amounts possible in thunderstorms. Lows in the upper 40s to mid 50s. Southwest wind 10 to 20 mph.

  • Thursday

    Mostly cloudy with scattered showers. Highs near 60. South wind 10 to 15 mph.

  • Thursday Night

    Mostly cloudy in the evening then becoming partly cloudy. Scattered showers. Lows in the mid 40s to lower 50s. Southwest wind around 10 mph.

  • Friday

    Mostly sunny with a chance of showers. Highs in the upper 50s to mid 60s. North wind 10 to 15 mph.

  • Friday Night

    Partly cloudy. Lows near 50.

  • Saturday

    Mostly sunny. Highs in the upper 60s.

  • Saturday Night

    Partly cloudy. Lows in the lower 50s.

  • Sunday

    Partly sunny. Highs in the upper 60s.

  • Sunday Night

    Partly cloudy. Lows in the lower to mid 50s.

  • Labor Day

    Partly sunny. Highs near 70.

  • Monday Night

    Mostly cloudy with a chance of showers. Lows in the lower to mid 50s.

  • Tuesday

    Mostly cloudy with a chance of showers. Highs in the mid 60s.

Personal Weather Stations

Personal Weather Stations [Add your weather station!]

Location: Ericson, Friday Harbor, WA

Updated: 2:38 PM PDT

Temperature: 56.5 °F Dew Point: 53 °F Humidity: 89% Wind: Calm Pressure: 29.93 in Hourly Precipitation: 0.00 in Graphs

Location: Front Street, Friday Harbor, WA

Updated: 2:35 PM PDT

Temperature: 64.4 °F Dew Point: 53 °F Humidity: 66% Wind: North at - Pressure: 29.74 in Hourly Precipitation: - Graphs

Location: San Juan Wx, Friday Harbor, WA

Updated: 2:28 PM PDT

Temperature: 59.5 °F Dew Point: 53 °F Humidity: 78% Wind: SSW at 2.7 mph Pressure: 29.78 in Hourly Precipitation: - Graphs

Location: SW Coastline, San Juan Island, Friday Harbor, WA

Updated: 2:38 PM PDT

Temperature: 58.0 °F Dew Point: 54 °F Humidity: 86% Wind: Calm Pressure: 29.89 in Hourly Precipitation: 0.00 in Graphs

Location: Mt Dallas West, Washington, WA

Updated: 2:38 PM PDT

Temperature: 52.2 °F Dew Point: 50 °F Humidity: 94% Wind: West at 5.6 mph Pressure: 29.55 in Hourly Precipitation: 0.00 in Graphs

Location: APRSWXNET, Kelp Reefs

Updated: 2:14 PM PDT

Temperature: 55 °F Dew Point: 51 °F Humidity: 85% Wind: Calm Pressure: 29.91 in Hourly Precipitation: 0.00 in Graphs

Location: RAWS, Kelp Reefs

Updated: 1:37 PM PDT

Temperature: 55 °F Dew Point: 51 °F Humidity: 86% Wind: WNW at 3 mph Pressure: 29.86 in Hourly Precipitation: 0.00 in Graphs

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

Updated: 2:33 PM PDT

Temperature: 53.5 °F Dew Point: 50 °F Humidity: 88% Wind: WNW at 10.0 mph Pressure: 29.88 in Hourly Precipitation: 0.01 in Graphs

Location: Roche Harbor Airport, Roche Harbor, WA

Updated: 2:32 PM PDT

Temperature: 52.7 °F Dew Point: 51 °F Humidity: 93% Wind: West at 3.0 mph Pressure: 29.92 in Hourly Precipitation: 0.06 in Graphs

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

Updated: 2:33 PM PDT

Temperature: 56.1 °F Dew Point: 53 °F Humidity: 89% Wind: Calm Pressure: 29.97 in Hourly Precipitation: 0.06 in Graphs

Location: APRSWXNET, Deer Harbor, WA

Updated: 2:02 PM PDT

Temperature: 53 °F Dew Point: 50 °F Humidity: 89% Wind: WNW at 1 mph Pressure: 29.90 in Hourly Precipitation: 0.00 in Graphs

Location: Lopez Road, Lopez Island, WA

Updated: 2:35 PM PDT

Temperature: 63.1 °F Dew Point: 63 °F Humidity: 100% Wind: North at - Pressure: 29.72 in Hourly Precipitation: - Graphs

Location: Pearl Island, Roche Harbor, WA

Updated: 2:38 PM PDT

Temperature: 52.6 °F Dew Point: 53 °F Humidity: 100% Wind: WNW at 5.0 mph Pressure: 29.77 in Hourly Precipitation: 0.06 in Graphs

Location: Lopez Island, WA, Lopez Island, WA

Updated: 2:38 PM PDT

Temperature: 58.0 °F Dew Point: 33 °F Humidity: 38% Wind: Calm Pressure: 29.22 in Hourly Precipitation: 0.12 in Graphs

Location: Swift Bay Lopez Island, Lopez Island, WA

Updated: 2:38 PM PDT

Temperature: 61.0 °F Dew Point: 52 °F Humidity: 72% Wind: NW at 11.0 mph Pressure: 29.89 in Hourly Precipitation: 0.15 in Graphs

Location: Richardson, Washington, WA

Updated: 2:36 PM PDT

Temperature: 59.7 °F Dew Point: 53 °F Humidity: 79% Wind: South at 2.0 mph Pressure: 29.90 in Hourly Precipitation: 0.00 in Graphs

Location: Ten Mile Point - Victoria, BC Canada, Victoria

Updated: 2:38 PM PDT

Temperature: 57.5 °F Dew Point: 51 °F Humidity: 78% Wind: NNW at 14.0 mph Pressure: 29.82 in Hourly Precipitation: 0.01 in Graphs

Location: Tudor Avenue, Victoria

Updated: 2:35 PM PDT

Temperature: 60.8 °F Dew Point: 58 °F Humidity: 89% Wind: North at - Pressure: 29.95 in Hourly Precipitation: - Graphs

Location: Center Island, Washington, WA

Updated: 2:24 PM PDT

Temperature: 61.1 °F Dew Point: 50 °F Humidity: 68% Wind: ESE at 3.0 mph Pressure: 29.87 in Hourly Precipitation: 0.00 in Graphs

Location: Blakely island 49, Washington, WA

Updated: 2:38 PM PDT

Temperature: 55.9 °F Dew Point: 51 °F Humidity: 83% Wind: Calm Pressure: 29.89 in Hourly Precipitation: 0.00 in Graphs

Location: Beach Haven, Eastsound, WA

Updated: 2:34 PM PDT

Temperature: 52.7 °F Dew Point: 52 °F Humidity: 99% Wind: Calm Pressure: 29.90 in Hourly Precipitation: - Graphs

Location: Cadboro Bay, British Columbia, Victoria

Updated: 2:32 PM PDT

Temperature: 56.5 °F Dew Point: 52 °F Humidity: 84% Wind: NW at 14.0 mph Pressure: 29.89 in Hourly Precipitation: 0.01 in Graphs

Location: Gordon Head, Victoria

Updated: 2:38 PM PDT

Temperature: 55.0 °F Dew Point: 50 °F Humidity: 84% Wind: NE at 2.0 mph Pressure: 29.87 in Hourly Precipitation: 0.02 in Graphs

Location: Longacre Drive, Victoria

Updated: 2:35 PM PDT

Temperature: 59.9 °F Dew Point: 52 °F Humidity: 76% Wind: North at - Pressure: 29.77 in Hourly Precipitation: - Graphs

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

Updated: 2:37 PM PDT

Temperature: 50.4 °F Dew Point: 48 °F Humidity: 92% Wind: WNW at 9.0 mph Pressure: 29.90 in Hourly Precipitation: 0.05 in Graphs

Location: Mount Tolmie, Victoria

Updated: 2:29 PM PDT

Temperature: 58.5 °F Dew Point: 48 °F Humidity: 67% Wind: North at 3.1 mph Pressure: 29.82 in Hourly Precipitation: 0.00 in Graphs

Location: Eastdowne Road, Victoria

Updated: 2:35 PM PDT

Temperature: 62.6 °F Dew Point: 53 °F Humidity: 71% Wind: North at - Pressure: 29.76 in Hourly Precipitation: - Graphs

Location: Oak Bay, Victoria

Updated: 2:35 PM PDT

Temperature: 61.3 °F Dew Point: 53 °F Humidity: 75% Wind: North at 1.0 mph Pressure: 29.88 in Hourly Precipitation: 0.00 in Graphs

Location: Cordova Ridge, Victoria

Updated: 12:48 PM PDT

Temperature: 62.2 °F Dew Point: 54 °F Humidity: 74% Wind: ENE at 1.6 mph Pressure: 29.89 in Hourly Precipitation: - Graphs

MSN Maps of:

Temp: Dew Point: Humidity Wind Pressure Hr Precip -

NWS Forecaster Discussion




Area forecast discussion 
National Weather Service Seattle Washington 
912 am PDT Wednesday Sep 2 2015 


Synopsis...a large upper level low will move slowly south over 
western Washington tonight through Thursday...bringing cool showery 
weather. There is also a chance of thunderstorms through this 
evening. The low will move down over Oregon on Friday...for a 
gradual drying and warming trend Friday afternoon and Saturday. 
A weak system may bring a chance of showers early next week. 


&& 


Short term...a cold deep upper level low centered over the central 
b.C. Coast this morning will move slowly S over southern Vancouver 
Island by Thursday afternoon. The air mass will become unstable 
today for showers and a chance of thunderstorms. Radar shows 
scattered showers over West Washington this morning. Infrared satellite imagery shows 
a very convective looking air mass in the S quadrant of the 
low...just offshore from Vancouver Island. There has been frequent 
but widely scattered lightning activity in the convective area so 
far...but no lightning has reached West Washington or the coastal waters yet. 
The chance of thunderstorms for this afternoon and evening looks 
pretty good. 


Models bring the upper level low S over S Vancouver Island and the 
northwest interior Thursday afternoon. GFS has lifted indices 0 to -3 
Thursday afternoon while the NAM shows 0 to -1. NAM bufr sounding 
for ksea shows a skinnier cape profile and lower cape value on 
Thursday compared to today. If the 12z GFS remains on course I will 
probably add a chance of thunderstorms on Thursday...even though it 
does not look quite as unstable as today. 


Models remain in agreement that the upper level low will drop S over 
Oregon on Friday with drier north flow developing over West Washington. The GFS is 
a little faster in developing the north flow. The faster GFS would mean 
dropping the chance of showers on Friday and clearing a lot of West Washington 
out by late afternoon. 


The upper level low will bring a cooler air mass over West Washington. Highs 
today and Thursday will be mainly in the lower to middle 60s...or about 
10 degrees below normal. Lows in the coldest spots will drop into 
the middle to upper 40s tonight...then reach the lower 40s Thursday and 
Friday nights. Snow levels over the mountains will lower to around 
5500 feet today and Thursday...with local snow accumulations of 
a few inches possible over the higher elevations. Kam 


Long term...previous discussion from the 323 am afd...the upper low 
will move east of the region Saturday...and a small upper ridge will 
move over the Pacific northwest. It should be a mostly sunny day and 
a bit warmer. Once again...confidence is not especially high for 
Sunday through Tuesday as model solutions have been inconsistent. 
The latest runs of the GFS...European...and Canadian models are now 
showing a weak progressive trough moving through the area 
Sunday...followed by another small ridge early next week. Our 
forecast reflects earlier runs...which showed a weak ridge over the 
area through the end of the weekend and a weak upper trough arriving 
around Monday night or Tuesday. We will sit on the current forecast 
for now given the uncertainty. Mcdonnal 


&& 


Aviation...showers this morning...mainly over the north will 
continue to shift south today as the upper level trough over British 
Columbia continues to dig south. Ceilings are generally VFR...with 
lower MVFR conditions especially with areas under showers. In 
addition to the showers...there is enough instability especially 
with the upper level trough moving overhead...that thunderstorms 
remain possible today. Expect ceilings to generally improve late 
this afternoon and evening as showers taper off. 


Ksea...VFR ceilings will linger through the afternoon...except with 
scattered showers as they work south into King County from the north 
this morning and afternoon. Abundant low level moisture will help 
ceilings lower to MVFR levels early Wednesday morning. Winds will 
remain southerly at 10-15 knots. 


&& 


Marine...low level onshore flow continuing today with westerly flow 
over the coastal waters becoming northwesterly. 7 to 9 foot swell 
that has been affecting the coastal waters will subside overnight to 
6 to 7 feet at around 10 seconds. Shower activity today over area 
waters will keep winds gusty but below Small Craft Advisory 
criteria. In addition to showers...the upper level trough moving 
into the region from British Columbia is supporting enough 
instability over area waters to produce thunderstorms...especially 
over the northern coastal waters and West Entrance to the Strait 
this morning and all waters by this afternoon. Low level onshore 
flow will weaken somewhat late tonight into Thursday...and again 
Thursday night into Friday as a weak surface low moves through the 
offshore waters. High pressure will build over the waters Friday 
into the weekend. 


&& 


Sew watches/warnings/advisories... 
Washington...none. 
Pz...Small Craft Advisory Grays Harbor bar. 


&& 


$$ 


Www.Weather.Gov/Seattle 


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



National Weather Service Glossary of Abbreviations

Non-Expanded Version (with abbreviations)

Powered by the Weather Underground, Inc.