Super Typhoon Sinlaku to Impact the Marianas and Guam; Severe Weather Threat from the Southern Plains to the Great Lakes

Super Typhoon Sinlaku will bring destructive winds, widespread heavy rain/flooding, thunderstorms, and coastal impacts to the Marianas Islands into Wednesday. Typhoon conditions are likely over the Northern Mariana Islands. Severe thunderstorms and heavy rain are expected from the Southern Plains to the Great Lakes through Tuesday. Heavy snow is expected in the Pacific Northwest. Read More >

Current conditions at

Friday Harbor Airport (KFHR)

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

Overcast

46°F

8°C

Humidity 70%
Wind Speed WSW 5 MPH
Barometer 30.04 in (1017.27 mb)
Dewpoint 37°F (3°C)
Visibility 10.00 mi
Wind Chill44°F (7°C)
Last update 14 Apr 02:00 AM PDT
Extended Forecast for

Friday Harbor WA

  • Overnight

    Overnight: A 50 percent chance of rain.  Cloudy, with a steady temperature around 46. South wind around 5 mph.

    Low: 46 °F

    Chance Rain

  • Tuesday

    Tuesday: Rain.  High near 50. South wind 5 to 9 mph.  Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

    High: 50 °F

    Rain

  • Tuesday Night

    Tuesday Night: Rain, mainly before 7pm.  Low around 37. West southwest wind 6 to 10 mph, with gusts as high as 22 mph.  Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 37 °F

    Rain then
    Partly Cloudy

  • Wednesday

    Wednesday: A chance of rain, then showers likely and possibly a thunderstorm after 11am.  Mostly cloudy, with a high near 50. West southwest wind around 6 mph.  Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 50 °F

    Showers
    Likely

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 38. West northwest wind around 5 mph becoming calm  in the evening.

    Low: 38 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 52.

    High: 52 °F

    Sunny

  • Thursday Night

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

    Low: 40 °F

    Partly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 53.

    High: 53 °F

    Partly Sunny

  • Friday Night

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

    Low: 40 °F

    Mostly Cloudy

Detailed Forecast

Overnight
A 50 percent chance of rain. Cloudy, with a steady temperature around 46. South wind around 5 mph.
Tuesday
Rain. High near 50. South wind 5 to 9 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Tuesday Night
Rain, mainly before 7pm. Low around 37. West southwest wind 6 to 10 mph, with gusts as high as 22 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Wednesday
A chance of rain, then showers likely and possibly a thunderstorm after 11am. Mostly cloudy, with a high near 50. West southwest wind around 6 mph. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
Partly cloudy, with a low around 38. West northwest wind around 5 mph becoming calm in the evening.
Thursday
Sunny, with a high near 52.
Thursday Night
Partly cloudy, with a low around 40.
Friday
Partly sunny, with a high near 53.
Friday Night
Mostly cloudy, with a low around 40.
Saturday
Mostly cloudy, with a high near 57.
Saturday Night
A chance of rain. Mostly cloudy, with a low around 45.
Sunday
A chance of rain. Mostly cloudy, with a high near 57.
Sunday Night
A chance of rain. Mostly cloudy, with a low around 44.
Monday
A chance of rain. Partly sunny, with a high near 57.
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ABOUT THIS FORECAST

 
Point Forecast:
Friday Harbor WA
 48.53°N 123.02°W (Elev. 20 ft)
11:27 pm PDT Apr 13, 2026
2am PDT Apr 14, 2026-6pm PDT Apr 20, 2026
 
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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