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

Critical fire weather conditions will persist in the central High Plains through Friday as gusty winds and dry conditions continue. The heat wave across the West and Southwest will continue to intensify through the week, with daily and monthly record highs expected to be broken. Read More >

Hazardous Weather Conditions

Current conditions at

Santa Rosa, Santa Rosa Sonoma County Airport (KSTS)

Lat: 38.5°NLon: 122.81667°WElev: 125.0ft.

Clear

77°F

25°C

Humidity 50%
Wind Speed SE 6 MPH
Barometer 30.02 in (1016.59 mb)
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Heat Index79°F (26°C)
Last update 18 Mar 06:53 PM PDT
Extended Forecast for

4 Miles W Saint Helena CA

Heat Advisory March 18, 07:12pm until March 20, 08:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory March 18, 07:12pm until March 20, 08:00pm

    NOW until 8:00pm Fri

    Heat Advisory

  • Tonight

    Low: 71 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 86. East northeast wind around 5 mph becoming calm  in the morning.

    High: 86 °F

    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 73. West wind around 6 mph becoming north after midnight.

    Low: 73 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 86. North wind around 5 mph becoming calm  in the morning.

    High: 86 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 70. West southwest wind around 6 mph becoming northwest after midnight.

    Low: 70 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 79.

    High: 79 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 63.

    Low: 63 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 76.

    High: 76 °F

    Sunny

Detailed Forecast

Tonight
Clear, with a low around 71. Northwest wind around 6 mph.
Thursday
Sunny, with a high near 86. East northeast wind around 5 mph becoming calm in the morning.
Thursday Night
Clear, with a low around 73. West wind around 6 mph becoming north after midnight.
Friday
Sunny, with a high near 86. North wind around 5 mph becoming calm in the morning.
Friday Night
Partly cloudy, with a low around 70. West southwest wind around 6 mph becoming northwest after midnight.
Saturday
Mostly sunny, with a high near 79.
Saturday Night
Partly cloudy, with a low around 63.
Sunday
Sunny, with a high near 76.
Sunday Night
Mostly clear, with a low around 56.
Monday
Mostly sunny, with a high near 73.
Monday Night
Partly cloudy, with a low around 59.
Tuesday
Mostly sunny, with a high near 72.
Tuesday Night
Mostly clear, with a low around 53.
Wednesday
Sunny, with a high near 68.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles W Saint Helena CA
 38.52°N 122.55°W (Elev. 1998 ft)
3:12 pm PDT Mar 18, 2026
7pm PDT Mar 18, 2026-6pm PDT Mar 25, 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