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

Hazardous Weather Conditions

Current conditions at

Port Townsend Jefferson County International Airport (K0S9)

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

Overcast

41°F

5°C

Humidity 86%
Wind Speed SSW 6 MPH
Barometer 29.89 in (1012.19 mb)
Dewpoint 37°F (3°C)
Visibility 10.00 mi
Wind Chill37°F (3°C)
Last update 15 Apr 05:55 PM PDT
Extended Forecast for

Chimacum WA

Frost Advisory April 16, 01:00am until April 16, 09:00am
Click here for hazard details and duration
Frost Advisory

  • Tonight

    Tonight: A 40 percent chance of showers, mainly before 7pm. Widespread frost, mainly after 5am. Otherwise, partly cloudy, with a low around 33. West northwest wind around 5 mph becoming calm in the evening.

    Low: 33 °F

    Chance
    Showers then
    Frost

  • Thursday

    Thursday: Areas of frost before 9am. Otherwise, sunny, with a high near 54. Calm wind becoming south southeast around 5 mph.

    High: 54 °F

    Areas Frost
    then Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 37. Light and variable wind.

    Low: 37 °F

    Partly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 55. Light and variable wind.

    High: 55 °F

    Partly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 39. Calm wind.

    Low: 39 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly cloudy, with a high near 61.

    High: 61 °F

    Mostly Cloudy

  • Saturday Night

    Saturday Night: A 20 percent chance of rain after 11pm. Mostly cloudy, with a low around 44.

    Low: 44 °F

    Slight Chance
    Rain

  • Sunday

    Sunday: A slight chance of rain. Mostly cloudy, with a high near 61.

    High: 61 °F

    Slight Chance
    Rain

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 46.

    Low: 46 °F

    Mostly Cloudy

Detailed Forecast

Tonight
A 40 percent chance of showers, mainly before 7pm. Widespread frost, mainly after 5am. Otherwise, partly cloudy, with a low around 33. West northwest wind around 5 mph becoming calm in the evening.
Thursday
Areas of frost before 9am. Otherwise, sunny, with a high near 54. Calm wind becoming south southeast around 5 mph.
Thursday Night
Partly cloudy, with a low around 37. Light and variable wind.
Friday
Partly sunny, with a high near 55. Light and variable wind.
Friday Night
Mostly cloudy, with a low around 39. Calm wind.
Saturday
Mostly cloudy, with a high near 61.
Saturday Night
A 20 percent chance of rain after 11pm. Mostly cloudy, with a low around 44.
Sunday
A slight chance of rain. Mostly cloudy, with a high near 61.
Sunday Night
Mostly cloudy, with a low around 46.
Monday
Mostly sunny, with a high near 64.
Monday Night
Partly cloudy, with a low around 46.
Tuesday
A slight chance of rain. Mostly sunny, with a high near 62.
Tuesday Night
A chance of rain. Mostly cloudy, with a low around 46.
Wednesday
A chance of rain. Mostly cloudy, with a high near 59.
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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:
2:10 pm PDT Apr 15, 2026
Forecast Valid:
6pm PDT Apr 15, 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

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation