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

Dangerous Heat and Heavy Rainfall into the Weekend

Hot temperatures and high humidity are forecast to continue across the mid-Mississippi Valley into this weekend. Heat Advisories remain in effect. Heavy to excessive rainfall occurring at times through the weekend could bring areas of flooding to parts of the northern Rockies, upper Midwest, central Great Lakes, and southern New England. Read More >

Current conditions at

CW1035 Port Townsend (C1035)

Lat: 48.12517°NLon: 122.762°WElev: 244.46ft.

NA

54°F

12°C

Humidity 94%
Wind Speed SSE 0 MPH
Barometer 30.2 in (1022.69 mb)
Dewpoint 52°F (11°C)
Visibility NA
Last update 19 Sep 09:22 AM PDT
Extended Forecast for

Coupeville WA

  • Today

    Today: Cloudy, then gradually becoming mostly sunny, with a high near 63. Calm wind becoming west northwest around 6 mph in the afternoon.

    High: 63 °F

    Decreasing
    Clouds

  • Tonight

    Tonight: Partly cloudy, with a low around 52. West wind 3 to 5 mph.

    Low: 52 °F

    Partly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 62. West northwest wind 5 to 8 mph.

    High: 62 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 52. West northwest wind 6 to 8 mph.

    Low: 52 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 64. West wind around 6 mph becoming south in the morning.

    High: 64 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 53.

    Low: 53 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 62.

    High: 62 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 52.

    Low: 52 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A slight chance of rain after 11am. Partly sunny, with a high near 64.

    High: 64 °F

    Slight Chance
    Rain

Detailed Forecast

Today
Cloudy, then gradually becoming mostly sunny, with a high near 63. Calm wind becoming west northwest around 6 mph in the afternoon.
Tonight
Partly cloudy, with a low around 52. West wind 3 to 5 mph.
Sunday
Partly sunny, with a high near 62. West northwest wind 5 to 8 mph.
Sunday Night
Partly cloudy, with a low around 52. West northwest wind 6 to 8 mph.
Monday
Mostly sunny, with a high near 64. West wind around 6 mph becoming south in the morning.
Monday Night
Partly cloudy, with a low around 53.
Tuesday
Partly sunny, with a high near 62.
Tuesday Night
Mostly cloudy, with a low around 52.
Wednesday
A slight chance of rain after 11am. Partly sunny, with a high near 64.
Wednesday Night
Mostly cloudy, with a low around 52.
Thursday
Mostly cloudy, with a high near 63.
Thursday Night
A slight chance of rain. Mostly cloudy, with a low around 51.
Friday
A slight chance of rain. Partly sunny, with a high near 62.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Coupeville WA
 48.22°N 122.7°W (Elev. 3 ft)
Last Update:
12:25 am PDT Sep 19, 2026
Forecast Valid:
9am PDT Sep 19, 2026-6pm PDT Sep 25, 2026
 
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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