Heat the Southwest; Fire Weather in the Central U.S.; Kona Low Impacting Hawaii

A rare March heat wave is ongoing with much above-normal temperatures over the Southwest U.S. through this weekend. Periods of critical fire weather will persist from the central Rockies to the central and southern Plains through the weekend as gusty winds and low relative humidity continue. A Kona low will continue to bring several rounds of moderate to heavy rainfall to Hawaii through Sunday. 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

91°F

33°C

Humidity 29%
Wind Speed S 5 MPH
Barometer 29.89 in (1012.19 mb)
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Heat Index89°F (32°C)
Last update 20 Mar 03:53 PM PDT
Extended Forecast for

4 Miles NE Calistoga CA

Heat Advisory March 20, 04:16pm until March 20, 08:00pm
Click here for hazard details and duration
...
  •  
    Heat Advisory March 20, 04:16pm until March 20, 08:00pm

    NOW until 8:00pm Fri

    Heat Advisory

  • Tonight

    Low: 62 °F

    Increasing
    Clouds

  • Saturday

    Saturday: Mostly sunny, with a high near 80. West wind 6 to 11 mph, with gusts as high as 21 mph.

    High: 80 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 56. North northwest wind 7 to 10 mph, with gusts as high as 21 mph.

    Low: 56 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 76. North northwest wind 5 to 7 mph becoming west southwest in the afternoon.

    High: 76 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 52. West northwest wind 5 to 7 mph.

    Low: 52 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 76.

    High: 76 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 53.

    Low: 53 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 77.

    High: 77 °F

    Sunny

Detailed Forecast

Tonight
Increasing clouds, with a low around 62. West wind around 6 mph becoming north northwest after midnight.
Saturday
Mostly sunny, with a high near 80. West wind 6 to 11 mph, with gusts as high as 21 mph.
Saturday Night
Mostly clear, with a low around 56. North northwest wind 7 to 10 mph, with gusts as high as 21 mph.
Sunday
Sunny, with a high near 76. North northwest wind 5 to 7 mph becoming west southwest in the afternoon.
Sunday Night
Mostly clear, with a low around 52. West northwest wind 5 to 7 mph.
Monday
Sunny, with a high near 76.
Monday Night
Mostly clear, with a low around 53.
Tuesday
Sunny, with a high near 77.
Tuesday Night
Partly cloudy, with a low around 53.
Wednesday
Sunny, with a high near 75.
Wednesday Night
Mostly clear, with a low around 51.
Thursday
Mostly sunny, with a high near 76.
Thursday Night
Partly cloudy, with a low around 54.
Friday
Mostly sunny, with a high near 76.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles NE Calistoga CA
 38.61°N 122.54°W (Elev. 1552 ft)
2:07 pm PDT Mar 20, 2026
4pm PDT Mar 20, 2026-6pm PDT Mar 27, 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