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

Autumn Temperatures for Eastern Third of the Country; Super Typhoon Approaching Guam

Cooler and less humid conditions for the eastern third of the nation as a cold slides off the east coast. Combination of dry and breezy conditions may result in spread of wildfires across the lower Mississippi Valley. In addition, fire weather conditions linger into portions of Southern California. For Guam, a super typhoon is approaching. Read More >

Current conditions at

Port Townsend Jefferson County International Airport (K0S9)

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

Clear

52°F

11°C

Humidity 62%
Wind Speed NW 5 MPH
Barometer 30.24 in (1024.04 mb)
Dewpoint 39°F (4°C)
Visibility 10.00 mi
Last update 17 Oct 10:55 PM PDT
Extended Forecast for

Chimacum WA

  • Tonight

    Tonight: Mostly clear, with a low around 40. Northwest wind 3 to 7 mph.

    Low: 40 °F

    Mostly Clear

  • Sunday

    Sunday: Increasing clouds, with a high near 55. Northwest wind 5 to 8 mph.

    High: 55 °F

    Increasing
    Clouds

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 40. Northwest wind 3 to 7 mph.

    Low: 40 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly cloudy, with a high near 56. Calm wind becoming north around 5 mph in the afternoon.

    High: 56 °F

    Mostly Cloudy

  • Monday Night

    Monday Night: Partly cloudy, with a low around 40. North northwest wind around 5 mph becoming calm.

    Low: 40 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 56.

    High: 56 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 42.

    Low: 42 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 59.

    High: 59 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 41.

    Low: 41 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 40. Northwest wind 3 to 7 mph.
Sunday
Increasing clouds, with a high near 55. Northwest wind 5 to 8 mph.
Sunday Night
Mostly cloudy, with a low around 40. Northwest wind 3 to 7 mph.
Monday
Mostly cloudy, with a high near 56. Calm wind becoming north around 5 mph in the afternoon.
Monday Night
Partly cloudy, with a low around 40. North northwest wind around 5 mph becoming calm.
Tuesday
Sunny, with a high near 56.
Tuesday Night
Mostly clear, with a low around 42.
Wednesday
Sunny, with a high near 59.
Wednesday Night
Partly cloudy, with a low around 41.
Thursday
A slight chance of rain after 11am. Partly sunny, with a high near 58.
Thursday Night
A chance of rain. Mostly cloudy, with a low around 41.
Friday
A slight chance of rain. Partly sunny, with a high near 56.
Friday Night
A slight chance of rain. Mostly cloudy, with a low around 40.
Saturday
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:
Chimacum WA
 48.02°N 122.76°W (Elev. 194 ft)
Last Update:
11:26 am PDT Oct 17, 2026
Forecast Valid:
11pm PDT Oct 17, 2026-6pm PDT Oct 24, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation