Hawaii and Guam Concerns; Record Warmth Spreads Eastward; Heavy Snow for Sierra-Nevada; Severe Weather for the Plains

A very active spring pattern with tropical concerns across the Pacific. Heavy rainfall will continue to impact Hawaii this weekend. Meanwhile we continue to monitor a developing typhoon that may affect Guam into early next week. For the Lower 48, heavy snow for mountains of California this weekend, increase threat for severe thunderstorms next week for the Plains and record warmth spreads east. Read More >

Current conditions at

Napa, Napa County Airport (KAPC)

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

Overcast

54°F

12°C

Humidity 100%
Wind Speed N 0 MPH
Barometer 29.86 in (1011.18 mb)
Dewpoint 54°F (12°C)
Visibility 10.00 mi
Last update 11 Apr 03:54 AM PDT
Extended Forecast for

4 Miles N Sonoma CA

  • Overnight

    Overnight: A 20 percent chance of rain.  Mostly cloudy, with a low around 49. Southwest wind around 8 mph.  New precipitation amounts of less than a tenth of an inch possible.

    Low: 49 °F

    Slight Chance
    Rain

  • Saturday

    Saturday: A chance of rain, then showers and possibly a thunderstorm after 11am.  High near 52. South wind 11 to 17 mph, with gusts as high as 31 mph.  Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.

    High: 52 °F

    Showers
    Likely then
    Showers

  • Saturday Night

    Saturday Night: Showers and thunderstorms before 1am, then showers and possibly a thunderstorm, mainly after 1am.  Low around 47. South wind 10 to 16 mph, with gusts as high as 30 mph.  Chance of precipitation is 80%. New rainfall amounts between three quarters and one inch possible.

    Low: 47 °F

    Showers

  • Sunday

    Sunday: Showers and possibly a thunderstorm before 2pm, then rain after 2pm.  High near 50. Southwest wind 13 to 16 mph, with gusts as high as 28 mph.  Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

    High: 50 °F

    Showers

  • Sunday Night

    Sunday Night: A 30 percent chance of rain before 11pm.  Partly cloudy, with a low around 47. West southwest wind 5 to 10 mph, with gusts as high as 21 mph.  New precipitation amounts of less than a tenth of an inch possible.

    Low: 47 °F

    Chance Rain
    then Mostly
    Clear

  • Monday

    Monday: Mostly sunny, with a high near 57.

    High: 57 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 46.

    Low: 46 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 59.

    High: 59 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 46.

    Low: 46 °F

    Mostly Clear

Detailed Forecast

Overnight
A 20 percent chance of rain. Mostly cloudy, with a low around 49. Southwest wind around 8 mph. New precipitation amounts of less than a tenth of an inch possible.
Saturday
A chance of rain, then showers and possibly a thunderstorm after 11am. High near 52. South wind 11 to 17 mph, with gusts as high as 31 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.
Saturday Night
Showers and thunderstorms before 1am, then showers and possibly a thunderstorm, mainly after 1am. Low around 47. South wind 10 to 16 mph, with gusts as high as 30 mph. Chance of precipitation is 80%. New rainfall amounts between three quarters and one inch possible.
Sunday
Showers and possibly a thunderstorm before 2pm, then rain after 2pm. High near 50. Southwest wind 13 to 16 mph, with gusts as high as 28 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Sunday Night
A 30 percent chance of rain before 11pm. Partly cloudy, with a low around 47. West southwest wind 5 to 10 mph, with gusts as high as 21 mph. New precipitation amounts of less than a tenth of an inch possible.
Monday
Mostly sunny, with a high near 57.
Monday Night
Mostly clear, with a low around 46.
Tuesday
Sunny, with a high near 59.
Tuesday Night
Mostly clear, with a low around 46.
Wednesday
Mostly sunny, with a high near 60.
Wednesday Night
Partly cloudy, with a low around 48.
Thursday
Sunny, with a high near 63.
Thursday Night
Clear, with a low around 50.
Friday
Sunny, with a high near 67.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles N Sonoma CA
 38.36°N 122.45°W (Elev. 1818 ft)
2:38 am PDT Apr 11, 2026
4am PDT Apr 11, 2026-6pm PDT Apr 17, 2026
 
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