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Sinlaku Continues to Impact the Marianas; Severe Weather for the Central Plains and Northeast; Record Warmth for mid-Atlantic to Southeast

Sinlaku continues to affect the Marianas as it moves north through Friday. Meanwhile, severe thunderstorms are expected from the Northeast to the Mid-Mississippi Valley today and for the Central/Southern Plains on Friday. Considerable flooding impacts are ongoing in the Upper Great Lakes, and expected to continue through the weekend. Fire weather concerns persist in the Plains. Read More >

Hazardous Weather Conditions

Current conditions at

Port Townsend Jefferson County International Airport (K0S9)

Lat: 48.05517°NLon: 122.81159°WElev: 105.0ft.

freezing fog

32°F

0°C

Humidity 100%
Wind Speed N 0 MPH
Barometer 30.14 in (1020.66 mb)
Dewpoint 32°F (0°C)
Visibility 0.25 mi
Last update 16 Apr 05:55 AM PDT
Extended Forecast for

Chimacum WA

Frost Advisory until April 16, 09:00am
Click here for hazard details and duration
...
  •  
    Frost Advisory until April 16, 09:00am

    NOW until 9:00am Thu

    Frost Advisory

  • Today

    High: 54 °F

    Areas Frost
    then Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 38. Calm wind becoming west northwest around 5 mph.

    Low: 38 °F

    Partly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 55. Calm wind.

    High: 55 °F

    Partly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 39. Light and variable wind.

    Low: 39 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly cloudy, with a high near 61. Calm wind becoming southeast around 5 mph in the afternoon.

    High: 61 °F

    Mostly Cloudy

  • Saturday Night

    Saturday Night: A 30 percent chance of rain, mainly after 11pm. Mostly cloudy, with a low around 45.

    Low: 45 °F

    Chance Rain

  • Sunday

    Sunday: A 30 percent chance of rain. Mostly cloudy, with a high near 62.

    High: 62 °F

    Chance Rain

  • Sunday Night

    Sunday Night: A slight chance of rain before 11pm. Mostly cloudy, with a low around 46.

    Low: 46 °F

    Slight Chance
    Rain then
    Mostly Cloudy

Detailed Forecast

Today
Areas of frost before 9am. Otherwise, sunny, with a high near 54. Calm wind becoming east southeast around 5 mph.
Tonight
Partly cloudy, with a low around 38. Calm wind becoming west northwest around 5 mph.
Friday
Partly sunny, with a high near 55. Calm wind.
Friday Night
Mostly cloudy, with a low around 39. Light and variable wind.
Saturday
Mostly cloudy, with a high near 61. Calm wind becoming southeast around 5 mph in the afternoon.
Saturday Night
A 30 percent chance of rain, mainly after 11pm. Mostly cloudy, with a low around 45.
Sunday
A 30 percent chance of rain. Mostly cloudy, with a high near 62.
Sunday Night
A slight chance of rain before 11pm. Mostly cloudy, with a low around 46.
Monday
A slight chance of rain after 11am. Partly sunny, with a high near 63.
Monday Night
A slight chance of rain. Mostly cloudy, with a low around 46.
Tuesday
A chance of rain. Partly sunny, with a high near 60.
Tuesday Night
A chance of rain. Mostly cloudy, with a low around 45.
Wednesday
A chance of rain. Partly sunny, with a high near 57.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Chimacum WA
 48.02°N 122.76°W (Elev. 194 ft)
Last Update:
1:20 am PDT Apr 16, 2026
Forecast Valid:
6am PDT Apr 16, 2026-6pm PDT Apr 22, 2026
 
Forecast Discussion
 
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Additional Resources

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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