Autumn Temperatures for Eastern Third of the Country; Developing Offshore Coastal Storm

Cooler and less humid conditions for most of the eastern third of the nation as high pressure dominates the weather pattern. Otherwise, rather tranquil weather for most of the nation for the end of the weekend into the start of this week. We continue to monitor a developing coastal storm offshore of the Carolinas; Coastal flooding and beach erosion possible along portions of the Mid-Atlantic. Read More >

Current conditions at

Port Townsend Jefferson County International Airport (K0S9)

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

Clear

55°F

13°C

Humidity 71%
Wind Speed WNW 8 MPH
Barometer 30.18 in (1022.01 mb)
Dewpoint 46°F (8°C)
Visibility 10.00 mi
Last update 18 Oct 10:55 AM PDT
Extended Forecast for

3 Miles S Chimacum WA

  • Today

    Today: Mostly sunny, with a high near 57. North northwest wind around 8 mph.

    High: 57 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 37. Northwest wind around 6 mph becoming calm  after midnight.

    Low: 37 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly cloudy, with a high near 58. Calm wind becoming north around 5 mph in the afternoon.

    High: 58 °F

    Mostly Cloudy

  • Monday Night

    Monday Night: Cloudy, then gradually becoming partly cloudy, with a low around 37. Northwest wind 5 to 7 mph.

    Low: 37 °F

    Decreasing
    Clouds

  • Tuesday

    Tuesday: Patchy frost before 9am.  Otherwise, sunny, with a high near 58. North northwest wind 7 to 13 mph.

    High: 58 °F

    Patchy Frost
    then Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 38.

    Low: 38 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 60.

    High: 60 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 39.

    Low: 39 °F

    Partly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 57.

    High: 57 °F

    Partly Sunny

Detailed Forecast

Today
Mostly sunny, with a high near 57. North northwest wind around 8 mph.
Tonight
Mostly cloudy, with a low around 37. Northwest wind around 6 mph becoming calm after midnight.
Monday
Mostly cloudy, with a high near 58. Calm wind becoming north around 5 mph in the afternoon.
Monday Night
Cloudy, then gradually becoming partly cloudy, with a low around 37. Northwest wind 5 to 7 mph.
Tuesday
Patchy frost before 9am. Otherwise, sunny, with a high near 58. North northwest wind 7 to 13 mph.
Tuesday Night
Mostly clear, with a low around 38.
Wednesday
Sunny, with a high near 60.
Wednesday Night
Partly cloudy, with a low around 39.
Thursday
Partly sunny, with a high near 57.
Thursday Night
A slight chance of rain. Mostly cloudy, with a low around 38.
Friday
A slight chance of rain. Mostly sunny, with a high near 55.
Friday Night
A slight chance of rain. Mostly cloudy, with a low around 37.
Saturday
A slight chance of rain. Partly sunny, with a high near 54.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles S Chimacum WA
 47.98°N 122.75°W (Elev. 390 ft)
11:26 pm PDT Oct 17, 2026
11am PDT Oct 18, 2026-6pm PDT Oct 24, 2026
 
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Additional Resources

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Hourly Weather Forecast

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