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 >

Current conditions at

Santa Rosa, Santa Rosa Sonoma County Airport (KSTS)

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

Clear

50°F

10°C

Humidity 82%
Wind Speed SSW 4 MPH
Barometer 29.97 in (1014.9 mb)
Dewpoint 45°F (7°C)
Visibility 10.00 mi
Wind Chill49°F (9°C)
Last update 22 Mar 12:53 AM PDT
Extended Forecast for

4 Miles W Saint Helena CA

  • Overnight

    Overnight: Mostly clear, with a steady temperature around 63. North northwest wind around 6 mph.

    Low: 63 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 74. Light and variable wind becoming west southwest around 6 mph in the afternoon.

    High: 74 °F

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 59. West wind around 7 mph.

    Low: 59 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 72. West southwest wind 3 to 7 mph.

    High: 72 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 59. West wind 6 to 9 mph.

    Low: 59 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 74.

    High: 74 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 58.

    Low: 58 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 73.

    High: 73 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 54.

    Low: 54 °F

    Partly Cloudy

Detailed Forecast

Overnight
Mostly clear, with a steady temperature around 63. North northwest wind around 6 mph.
Sunday
Sunny, with a high near 74. Light and variable wind becoming west southwest around 6 mph in the afternoon.
Sunday Night
Partly cloudy, with a low around 59. West wind around 7 mph.
Monday
Sunny, with a high near 72. West southwest wind 3 to 7 mph.
Monday Night
Mostly clear, with a low around 59. West wind 6 to 9 mph.
Tuesday
Sunny, with a high near 74.
Tuesday Night
Mostly clear, with a low around 58.
Wednesday
Sunny, with a high near 73.
Wednesday Night
Partly cloudy, with a low around 54.
Thursday
Mostly sunny, with a high near 73.
Thursday Night
Partly cloudy, with a low around 58.
Friday
Mostly sunny, with a high near 74.
Friday Night
Partly cloudy, with a low around 58.
Saturday
Mostly sunny, with a high near 73.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles W Saint Helena CA
 38.52°N 122.55°W (Elev. 1998 ft)
12:32 am PDT Mar 22, 2026
1am PDT Mar 22, 2026-6pm PDT Mar 28, 2026
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database