Heat Wave Persists Over the Central U.S.; Significant Flooding Expected in the Northern Mid-Atlantic Tuesday

Dangerous and extreme heat will remain across portions of the Central U.S. this week, persisting across the Mid to Lower Mississippi Valleys, Gulf Coast, Southern Plains and portions of Texas. A heat wave over the Southwest will intensify late this week. Severe thunderstorms and flash flooding will spread from the Great Lakes/Ohio Valley to the Mid-Atlantic and Northeast the next few days. Read More >

Current conditions at

SEATTLE WEATHER FORECAST OFFICE (SEAW1)

Lat: 47.68528°NLon: 122.25111°WElev: 29.0ft.

NA

67°F

19°C

Humidity 68%
Wind Speed SW 2 MPH
Barometer 29.88 in (1011.85 mb)
Dewpoint 56°F (13°C)
Visibility NA
Last update 27 Jul 10:30 PM PDT
Extended Forecast for

Duvall WA

  • Tonight

    Tonight: Increasing clouds, with a low around 56. Calm wind becoming south southeast 5 to 7 mph after midnight.

    Low: 56 °F

    Increasing
    Clouds

  • Tuesday

    Tuesday: Partly sunny, with a high near 76. South southeast wind 6 to 10 mph becoming west southwest in the afternoon.

    High: 76 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 54. Calm wind.

    Low: 54 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Patchy fog before 7am.  Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 77. Light northwest wind.

    High: 77 °F

    Patchy Fog
    then Mostly
    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 51. North northwest wind around 5 mph becoming calm  in the evening.

    Low: 51 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 79.

    High: 79 °F

    Sunny

  • Thursday Night

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

    Low: 52 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 83.

    High: 83 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 55.

    Low: 55 °F

    Mostly Clear

Detailed Forecast

Tonight
Increasing clouds, with a low around 56. Calm wind becoming south southeast 5 to 7 mph after midnight.
Tuesday
Partly sunny, with a high near 76. South southeast wind 6 to 10 mph becoming west southwest in the afternoon.
Tuesday Night
Mostly cloudy, with a low around 54. Calm wind.
Wednesday
Patchy fog before 7am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 77. Light northwest wind.
Wednesday Night
Mostly clear, with a low around 51. North northwest wind around 5 mph becoming calm in the evening.
Thursday
Sunny, with a high near 79.
Thursday Night
Mostly clear, with a low around 52.
Friday
Sunny, with a high near 83.
Friday Night
Mostly clear, with a low around 55.
Saturday
A chance of rain. Partly sunny, with a high near 77.
Saturday Night
A chance of rain. Mostly cloudy, with a low around 54.
Sunday
A chance of rain. Partly sunny, with a high near 72.
Sunday Night
Mostly clear, with a low around 50.
Monday
Sunny, with a high near 76.
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ABOUT THIS FORECAST

 
Point Forecast:
Duvall WA
 47.74°N 121.98°W (Elev. 233 ft)
11:26 pm PDT Jul 27, 2026
11pm PDT Jul 27, 2026-6pm PDT Aug 3, 2026
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database