National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Severe Thunderstorms in Portions of the Mississippi Valley and Great Lakes

A few severe thunderstorms with large hail, are expected across parts of the middle and upper Mississippi River Valley tonight through early morning. Snow and a wintry mix overnight in the Upper Midwest into the Great Lakes can cause hazardous travel conditions. Fire weather concerns continue for a large portion of the central and southern High Plains and Four Corners region this evening. Read More >

Current conditions at

Friday Harbor Airport (KFHR)

Lat: 48.52°NLon: 123.02637°WElev: 112.0ft.

Clear

39°F

4°C

Humidity 69%
Wind Speed N 3 MPH
Barometer 30.06 in (1017.95 mb)
Dewpoint 30°F (-1°C)
Visibility 10.00 mi
Last update 30 Mar 11:00 PM PDT
Extended Forecast for

Friday Harbor WA

  • Tonight

    Tonight: Mostly cloudy, with a low around 37. Calm wind.

    Low: 37 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 51. Calm wind.

    High: 51 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 40. Calm wind.

    Low: 40 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Rain. High near 51. Southeast wind 5 to 13 mph, with gusts as high as 29 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 51 °F

    Rain

  • Wednesday Night

    Wednesday Night: Rain likely, mainly before 11pm. Mostly cloudy, with a low around 39. South southeast wind 5 to 8 mph becoming light and variable in the evening. Winds could gust as high as 20 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 39 °F

    Rain Likely
    then Chance
    Rain

  • Thursday

    Thursday: A 20 percent chance of rain before 11am. Partly sunny, with a high near 53.

    High: 53 °F

    Slight Chance
    Rain then
    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 41.

    Low: 41 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly cloudy, with a high near 53.

    High: 53 °F

    Mostly Cloudy

  • Friday Night

    Friday Night: Partly cloudy, with a low around 40.

    Low: 40 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a low around 37. Calm wind.
Tuesday
Mostly cloudy, with a high near 51. Calm wind.
Tuesday Night
Mostly cloudy, with a low around 40. Calm wind.
Wednesday
Rain. High near 51. Southeast wind 5 to 13 mph, with gusts as high as 29 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Wednesday Night
Rain likely, mainly before 11pm. Mostly cloudy, with a low around 39. South southeast wind 5 to 8 mph becoming light and variable in the evening. Winds could gust as high as 20 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Thursday
A 20 percent chance of rain before 11am. Partly sunny, with a high near 53.
Thursday Night
Mostly cloudy, with a low around 41.
Friday
Mostly cloudy, with a high near 53.
Friday Night
Partly cloudy, with a low around 40.
Saturday
Mostly sunny, with a high near 55.
Saturday Night
Partly cloudy, with a low around 42.
Sunday
Mostly sunny, with a high near 54.
Sunday Night
Mostly cloudy, with a low around 41.
Monday
A slight chance of rain. Partly sunny, with a high near 55.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Friday Harbor WA
 48.51°N 123.05°W (Elev. 141 ft)
Last Update:
11:27 am PDT Mar 30, 2026
Forecast Valid:
11pm PDT Mar 30, 2026-6pm PDT Apr 6, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation