The Weather Hazard Threefold

A large dome of high pressure will continue the sweltering heat in parts of the West and the central Plains. Meanwhile, a cold front will produce severe thunderstorms, capable of all hazards, the next few days from the Mid-Upper Mississippi Valley into the Ohio Valley and Great Lakes. Finally, Potential Tropical Cyclone Three will bring heavy rain and flooding to the northern Gulf Coast. Read More >

Hazardous Weather Conditions

Current conditions at

KF6YUA Sebastopol (AR323)

Lat: 38.3803°NLon: 122.8242°WElev: 230ft.

NA

64°F

18°C

Humidity 51%
Wind Speed NA 0 MPH
Barometer 29.7 in (1005.76 mb)
Dewpoint 45°F (7°C)
Visibility NA
Last update 17 Jun 09:57 PM PDT
Extended Forecast for

8 Miles SSW Saint Helena CA

Heat Advisory until June 18, 09:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory until June 18, 09:00pm

    NOW until
    9:00pm Fri

    Heat Advisory

  • Tonight

    Tonight: Cloudy early, then clearing, with a low around 57. Calm wind.

    Clearing

    Low: 57 °F

  • Friday

    Friday: Sunny and hot, with a high near 99. Calm wind becoming west southwest 5 to 7 mph in the afternoon.

    Hot

    High: 99 °F

  • Friday
    Night

    Friday Night: Mostly clear, with a low around 54. West southwest wind around 5 mph becoming calm  in the evening.

    Mostly Clear

    Low: 54 °F

  • Saturday

    Saturday: Sunny, with a high near 93. Calm wind becoming south southwest 5 to 7 mph in the afternoon.

    Sunny

    High: 93 °F

  • Saturday
    Night

    Saturday Night: Mostly clear, with a low around 51. Southwest wind 5 to 7 mph becoming calm  in the evening.

    Mostly Clear

    Low: 51 °F

  • Sunday

    Sunday: Sunny, with a high near 89.

    Sunny

    High: 89 °F

  • Sunday
    Night

    Sunday Night: Mostly clear, with a low around 51.

    Mostly Clear

    Low: 51 °F

  • Monday

    Monday: Sunny, with a high near 78.

    Sunny

    High: 78 °F

Detailed Forecast

Tonight
Cloudy early, then clearing, with a low around 57. Calm wind.
Friday
Sunny and hot, with a high near 99. Calm wind becoming west southwest 5 to 7 mph in the afternoon.
Friday Night
Mostly clear, with a low around 54. West southwest wind around 5 mph becoming calm in the evening.
Saturday
Sunny, with a high near 93. Calm wind becoming south southwest 5 to 7 mph in the afternoon.
Saturday Night
Mostly clear, with a low around 51. Southwest wind 5 to 7 mph becoming calm in the evening.
Sunday
Sunny, with a high near 89.
Sunday Night
Mostly clear, with a low around 51.
Monday
Sunny, with a high near 78.
Monday Night
Partly cloudy, with a low around 52.
Tuesday
Mostly sunny, with a high near 74.
Tuesday Night
Partly cloudy, with a low around 50.
Wednesday
Mostly sunny, with a high near 77.
Wednesday Night
Mostly clear, with a low around 49.
Thursday
Sunny, with a high near 78.
Click Map For Forecast
Point Forecast:
8 Miles SSW Saint Helena CA
 38.41°N 122.55°W (Elev. 492 ft)
9:15 pm PDT Jun 17, 2021
10pm PDT Jun 17, 2021-6pm PDT Jun 24, 2021
 
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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