Extreme Heat Across the Southern U.S.; Flash Flooding Threats in the Mid-Atlantic, Northeast, and Four Corners Region

Dangerous and extreme heat will remain across portions of the southern U.S. this week. Heavy rainfall may bring significant flash flooding across portions of the Mid-Atlantic and Northeast through the night, and additional flash flooding concerns across New England on Wednesday. Monsoonal thunderstorms will bring a flash flood risk to the Four Corners region, especially in burn scar areas Read More >

Current conditions at

SEATTLE WEATHER FORECAST OFFICE (SEAW1)

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

NA

62°F

17°C

Humidity 74%
Wind Speed N 5 MPH
Barometer 29.94 in (1013.89 mb)
Dewpoint 54°F (12°C)
Visibility NA
Last update 29 Jul 01:30 AM PDT
Extended Forecast for

Duvall WA

  • Overnight

    Overnight: Patchy fog after 4am.  Otherwise, partly cloudy, with a low around 52. Calm wind.

    Low: 52 °F

    Patchy Fog

  • Wednesday

    Wednesday: Patchy fog before 8am.  Otherwise, sunny, with a high near 76. Light north northwest wind.

    High: 76 °F

    Patchy Fog
    then Sunny

  • Wednesday Night

    Wednesday Night: Patchy fog after 4am.  Otherwise, mostly clear, with a low around 51. North northwest wind around 5 mph becoming calm  in the evening.

    Low: 51 °F

    Mostly Clear
    then Patchy
    Fog

  • Thursday

    Thursday: Patchy fog before 7am.  Otherwise, sunny, with a high near 77. Calm wind.

    High: 77 °F

    Patchy Fog
    then Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 53. Calm wind.

    Low: 53 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 83.

    High: 83 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 56.

    Low: 56 °F

    Partly Cloudy

  • Saturday

    Saturday: Rain likely before 11am, then showers likely and possibly a thunderstorm after 11am.  Mostly cloudy, with a high near 72.

    High: 72 °F

    Showers
    Likely

  • Saturday Night

    Saturday Night: A chance of rain.  Mostly cloudy, with a low around 52.

    Low: 52 °F

    Chance Rain

Detailed Forecast

Overnight
Patchy fog after 4am. Otherwise, partly cloudy, with a low around 52. Calm wind.
Wednesday
Patchy fog before 8am. Otherwise, sunny, with a high near 76. Light north northwest wind.
Wednesday Night
Patchy fog after 4am. Otherwise, mostly clear, with a low around 51. North northwest wind around 5 mph becoming calm in the evening.
Thursday
Patchy fog before 7am. Otherwise, sunny, with a high near 77. Calm wind.
Thursday Night
Mostly clear, with a low around 53. Calm wind.
Friday
Sunny, with a high near 83.
Friday Night
Partly cloudy, with a low around 56.
Saturday
Rain likely before 11am, then showers likely and possibly a thunderstorm after 11am. Mostly cloudy, with a high near 72.
Saturday Night
A chance of rain. Mostly cloudy, with a low around 52.
Sunday
A slight chance of rain before 11am. Partly sunny, with a high near 71.
Sunday Night
Mostly clear, with a low around 49.
Monday
Sunny, with a high near 76.
Monday Night
Mostly clear, with a low around 52.
Tuesday
Sunny, with a high near 81.
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ABOUT THIS FORECAST

 
Point Forecast:
Duvall WA
 47.72°N 121.97°W (Elev. 256 ft)
1:18 am PDT Jul 29, 2026
1am PDT Jul 29, 2026-6pm PDT Aug 4, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database