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

Heavy Rainfall in the Southern Plains and Mississippi Valley; Thunderstorms in Eastern Colorado on Thursday

A multiple day heavy rainfall event will begin to set up from the Southern Plains into the Mississippi Valley Thursday, peaking in intensity over the holiday weekend. Widely scattered thunderstorms are expected to develop across eastern Colorado Thursday afternoon and evening. Large hail will be the primary hazard. Read More >

Current conditions at

Napa, Napa County Airport (KAPC)

Lat: 38.2075°NLon: 122.27944°WElev: 33.0ft.

Clear

70°F

21°C

Humidity 60%
Wind Speed S 9 MPH
Barometer 29.85 in (1010.84 mb)
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Last update 20 May 07:20 PM PDT
Extended Forecast for

3 Miles SSE Sonoma CA

  • Tonight

    Tonight: Mostly clear, with a low around 50. West wind around 6 mph becoming calm in the evening.

    Low: 50 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 84. Calm wind becoming south southwest 5 to 8 mph in the afternoon.

    High: 84 °F

    Sunny

  • Thursday Night

    Thursday Night: Patchy fog after 5am. Otherwise, mostly clear, with a low around 49. West southwest wind 5 to 7 mph becoming calm in the evening.

    Low: 49 °F

    Clear then
    Patchy Fog

  • Friday

    Friday: Sunny, with a high near 79. Calm wind becoming south southwest 5 to 8 mph in the afternoon.

    High: 79 °F

    Sunny

  • Friday Night

    Friday Night: Patchy fog after 5am. Otherwise, mostly clear, with a low around 49. Southwest wind 5 to 9 mph becoming calm in the evening.

    Low: 49 °F

    Mostly Clear
    then Patchy
    Fog

  • Saturday

    Saturday: Patchy fog before 8am. Otherwise, mostly sunny, with a high near 72.

    High: 72 °F

    Patchy Fog
    then Sunny

  • Saturday Night

    Saturday Night: Patchy fog after 5am. Otherwise, partly cloudy, with a low around 48.

    Low: 48 °F

    Mostly Clear
    then Patchy
    Fog

  • Sunday

    Sunday: Patchy fog before 7am. Otherwise, mostly sunny, with a high near 74.

    High: 74 °F

    Patchy Fog
    then Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 47.

    Low: 47 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 50. West wind around 6 mph becoming calm in the evening.
Thursday
Sunny, with a high near 84. Calm wind becoming south southwest 5 to 8 mph in the afternoon.
Thursday Night
Patchy fog after 5am. Otherwise, mostly clear, with a low around 49. West southwest wind 5 to 7 mph becoming calm in the evening.
Friday
Sunny, with a high near 79. Calm wind becoming south southwest 5 to 8 mph in the afternoon.
Friday Night
Patchy fog after 5am. Otherwise, mostly clear, with a low around 49. Southwest wind 5 to 9 mph becoming calm in the evening.
Saturday
Patchy fog before 8am. Otherwise, mostly sunny, with a high near 72.
Saturday Night
Patchy fog after 5am. Otherwise, partly cloudy, with a low around 48.
Sunday
Patchy fog before 7am. Otherwise, mostly sunny, with a high near 74.
Sunday Night
Partly cloudy, with a low around 47.
Memorial Day
Mostly sunny, with a high near 73.
Monday Night
Mostly clear, with a low around 48.
Tuesday
Sunny, with a high near 72.
Tuesday Night
Mostly clear, with a low around 49.
Wednesday
Sunny, with a high near 77.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SSE Sonoma CA
 38.24°N 122.45°W (Elev. 3 ft)
Last Update:
6:06 pm PDT May 20, 2026
Forecast Valid:
7pm PDT May 20, 2026-6pm PDT May 27, 2026
 
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