Severe Thunderstorms and Heavy Rain in the Mid-Atlantic; Heat Persists Across the South

Scattered severe thunderstorms and excessive rainfall are possible into the night in the Mid Atlantic, and heavy rain will shift to Virginia and the Carolinas on Friday. Severe thunderstorms are also possible in the Central Plains into the Upper MS Valley and the Deep South tonight. Dangerous heat persists across the Southern Plains and Lower MS Valley and heat will expand into the Southwest. Read More >

Current conditions at

Port Townsend Jefferson County International Airport (K0S9)

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

Clear

81°F

27°C

Humidity 39%
Wind Speed WNW 6 MPH
Barometer 29.92 in (1013.21 mb)
Dewpoint 54°F (12°C)
Visibility 10.00 mi
Heat Index81°F (27°C)
Last update 20 Aug 05:55 PM PDT
Extended Forecast for

Chimacum WA

  • Tonight

    Tonight: Mostly clear, with a low around 54. Northwest wind around 5 mph becoming calm  in the evening.

    Low: 54 °F

    Mostly Clear

  • Friday

    Friday: Increasing clouds, with a high near 75. Calm wind becoming north northwest 5 to 7 mph in the morning.

    High: 75 °F

    Increasing
    Clouds

  • Friday Night

    Friday Night: A chance of rain before 1am, then a chance of rain after 3am.  Mostly cloudy, with a low around 54. Light and variable wind.  Chance of precipitation is 50%.

    Low: 54 °F

    Mostly Cloudy
    then Chance
    Rain

  • Saturday

    Saturday: Rain likely.  Mostly cloudy, with a high near 66. Calm wind becoming west southwest around 5 mph in the afternoon.  Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 66 °F

    Rain Likely

  • Saturday Night

    Saturday Night: Rain likely, mainly before 11pm.  Mostly cloudy, with a low around 51. West wind around 5 mph becoming calm  in the evening.  Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 51 °F

    Rain Likely

  • Sunday

    Sunday: A 20 percent chance of rain.  Mostly cloudy, with a high near 68.

    High: 68 °F

    Slight Chance
    Rain

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 51.

    Low: 51 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 73.

    High: 73 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 52.

    Low: 52 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly clear, with a low around 54. Northwest wind around 5 mph becoming calm in the evening.
Friday
Increasing clouds, with a high near 75. Calm wind becoming north northwest 5 to 7 mph in the morning.
Friday Night
A chance of rain before 1am, then a chance of rain after 3am. Mostly cloudy, with a low around 54. Light and variable wind. Chance of precipitation is 50%.
Saturday
Rain likely. Mostly cloudy, with a high near 66. Calm wind becoming west southwest around 5 mph in the afternoon. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Saturday Night
Rain likely, mainly before 11pm. Mostly cloudy, with a low around 51. West wind around 5 mph becoming calm in the evening. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Sunday
A 20 percent chance of rain. Mostly cloudy, with a high near 68.
Sunday Night
Partly cloudy, with a low around 51.
Monday
Mostly sunny, with a high near 73.
Monday Night
Mostly clear, with a low around 52.
Tuesday
Mostly sunny, with a high near 74.
Tuesday Night
A slight chance of rain. Partly cloudy, with a low around 52.
Wednesday
A slight chance of rain. Partly sunny, with a high near 70.
Wednesday Night
A slight chance of rain. Partly cloudy, with a low around 51.
Thursday
A slight chance of rain. Mostly sunny, with a high near 70.
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ABOUT THIS FORECAST

 
Point Forecast:
Chimacum WA
 48.02°N 122.76°W (Elev. 194 ft)
11:26 am PDT Aug 20, 2026
6pm PDT Aug 20, 2026-6pm PDT Aug 27, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database