Severe Thunderstorms for the Center of the Nation; Fire Weather Concerns; Flooding Issues for the Great Lakes Region

A round of severe thunderstorms are forecast across areas of the Southern Plains, Mississippi Valley and Great Lakes this afternoon and tonight; The threat for flash flooding will also accompany these storms. The rainfall for the Great Lakes region could prolong the ongoing flooding. Where the rain is needed, the Southern High Plains, critical fire weather concerns through today. Read More >

Current conditions at

KF6YUA Sebastopol (AR323)

Lat: 38.38033°NLon: 122.82367°WElev: 235.3ft.

NA

65°F

18°C

Humidity 43%
Wind Speed S 0 MPH
Barometer 30.09 in (1018.96 mb)
Dewpoint 42°F (6°C)
Visibility NA
Last update 17 Apr 05:41 PM PDT
Extended Forecast for

6 Miles SSW Saint Helena CA

  • Tonight

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

    Low: 50 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 70. Light and variable wind becoming south southeast around 6 mph in the afternoon.

    High: 70 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 52. Southwest wind around 5 mph becoming calm  in the evening.

    Low: 52 °F

    Mostly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 66. Calm wind becoming southwest 5 to 8 mph in the afternoon. Winds could gust as high as 18 mph.

    High: 66 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: A 30 percent chance of showers after 11pm.  Mostly cloudy, with a low around 50. Southwest wind 6 to 8 mph, with gusts as high as 18 mph.  New precipitation amounts of less than a tenth of an inch possible.

    Low: 50 °F

    Chance
    Showers

  • Monday

    Monday: Showers likely.  Mostly cloudy, with a high near 58. Chance of precipitation is 60%. New precipitation amounts between a quarter and half of an inch possible.

    High: 58 °F

    Showers
    Likely

  • Monday Night

    Monday Night: Rain likely.  Mostly cloudy, with a low around 52. Chance of precipitation is 70%.

    Low: 52 °F

    Rain Likely

  • Tuesday

    Tuesday: Rain before 11am, then showers and possibly a thunderstorm after 11am.  Mostly cloudy, with a high near 55.

    High: 55 °F

    Showers

  • Tuesday Night

    Tuesday Night: A chance of rain.  Mostly cloudy, with a low around 48.

    Low: 48 °F

    Chance Rain

Detailed Forecast

Tonight
Partly cloudy, with a low around 50. West wind around 6 mph becoming calm in the evening.
Saturday
Mostly sunny, with a high near 70. Light and variable wind becoming south southeast around 6 mph in the afternoon.
Saturday Night
Mostly cloudy, with a low around 52. Southwest wind around 5 mph becoming calm in the evening.
Sunday
Partly sunny, with a high near 66. Calm wind becoming southwest 5 to 8 mph in the afternoon. Winds could gust as high as 18 mph.
Sunday Night
A 30 percent chance of showers after 11pm. Mostly cloudy, with a low around 50. Southwest wind 6 to 8 mph, with gusts as high as 18 mph. New precipitation amounts of less than a tenth of an inch possible.
Monday
Showers likely. Mostly cloudy, with a high near 58. Chance of precipitation is 60%. New precipitation amounts between a quarter and half of an inch possible.
Monday Night
Rain likely. Mostly cloudy, with a low around 52. Chance of precipitation is 70%.
Tuesday
Rain before 11am, then showers and possibly a thunderstorm after 11am. Mostly cloudy, with a high near 55.
Tuesday Night
A chance of rain. Mostly cloudy, with a low around 48.
Wednesday
A chance of rain. Partly sunny, with a high near 59.
Wednesday Night
Mostly clear, with a low around 46.
Thursday
Sunny, with a high near 65.
Thursday Night
Mostly clear, with a low around 47.
Friday
Sunny, with a high near 66.
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ABOUT THIS FORECAST

 
Point Forecast:
6 Miles SSW Saint Helena CA
 38.42°N 122.49°W (Elev. 1627 ft)
1:26 pm PDT Apr 17, 2026
5pm PDT Apr 17, 2026-6pm PDT Apr 24, 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