Heat Wave Continues in the West; Critical Fire Weather Conditions in the High Plains

An anomalously early heat wave will continue to intensify and expand across the West and Southwest as the week progresses. Numerous daily and potentially monthly record highs are expected to be broken. Critical fire weather conditions will continue over the next couple of days across portions of the High Plains as gusty winds and dry conditions persist. Read More >

Hazardous Weather Conditions

Current conditions at

KF6YUA Sebastopol (AR323)

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

NA

67°F

19°C

Humidity 53%
Wind Speed WSW 0 MPH
Barometer 30.13 in (1020.32 mb)
Dewpoint 49°F (9°C)
Visibility NA
Last update 18 Mar 09:11 AM PDT
Extended Forecast for

6 Miles SSW Saint Helena CA

Heat Advisory March 18, 09:22am until March 20, 08:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory March 18, 09:22am until March 20, 08:00pm

    NOW until 8:00pm Fri

    Heat Advisory

  • Today

    High: 85 °F

    Sunny

  • Tonight

    Tonight: Clear, with a low around 63. Light and variable wind becoming northwest around 5 mph after midnight.

    Low: 63 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 87. North northeast wind 3 to 5 mph.

    High: 87 °F

    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 64. North northwest wind 3 to 5 mph.

    Low: 64 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 87. Calm wind becoming west southwest around 5 mph in the afternoon.

    High: 87 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 62.

    Low: 62 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 80.

    High: 80 °F

    Mostly Sunny

  • Saturday Night

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

    Low: 56 °F

    Partly Cloudy

Detailed Forecast

Today
Sunny, with a high near 85. Northeast wind around 5 mph becoming light and variable.
Tonight
Clear, with a low around 63. Light and variable wind becoming northwest around 5 mph after midnight.
Thursday
Sunny, with a high near 87. North northeast wind 3 to 5 mph.
Thursday Night
Clear, with a low around 64. North northwest wind 3 to 5 mph.
Friday
Sunny, with a high near 87. Calm wind becoming west southwest around 5 mph in the afternoon.
Friday Night
Partly cloudy, with a low around 62.
Saturday
Mostly sunny, with a high near 80.
Saturday Night
Partly cloudy, with a low around 56.
Sunday
Mostly sunny, with a high near 76.
Sunday Night
Partly cloudy, with a low around 55.
Monday
Mostly sunny, with a high near 72.
Monday Night
Mostly cloudy, with a low around 55.
Tuesday
A slight chance of rain. Mostly sunny, with a high near 69.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
6 Miles SSW Saint Helena CA
 38.42°N 122.49°W (Elev. 1627 ft)
1:59 am PDT Mar 18, 2026
9am PDT Mar 18, 2026-6pm PDT Mar 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