Tracking a Winter Storm; Unusual Early-Season Heat Wave in the Southwest

A major winter storm will organize across the Northern Plains today and then rapidly strengthen as it moves into the Great Lakes on Sunday. Heavy snow and blowing snow are likely to persist over the Great Lakes into Monday night. Dry and gusty winds will produce a critical fire risk across the central/southern Plains. An early heatwave will begin to intensify over the western U.S. into next week. Read More >

Current conditions at

Santa Rosa, Santa Rosa Sonoma County Airport (KSTS)

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

Clear

48°F

9°C

Humidity 93%
Wind Speed W 3 MPH
Barometer 30.11 in (1019.64 mb)
Dewpoint 46°F (8°C)
Visibility 10.00 mi
Last update 15 Mar 04:35 AM PDT
Extended Forecast for

5 Miles SSW Saint Helena CA

Heat Advisory March 16, 10:00am until March 20, 08:00pm
Click here for hazard details and duration
Heat Advisory
  • Today

    Today: Sunny, with a high near 81. North wind around 7 mph.

    High: 81 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 64. North wind around 6 mph.

    Low: 64 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 85. North wind around 6 mph.

    High: 85 °F

    Sunny

  • Monday Night

    Monday Night: Clear, with a low around 66. West wind around 5 mph becoming north after midnight.

    Low: 66 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 86. North northeast wind around 5 mph becoming southwest in the afternoon.

    High: 86 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Clear, with a low around 67.

    Low: 67 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 86.

    High: 86 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 67.

    Low: 67 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 86.

    High: 86 °F

    Sunny

Detailed Forecast

Today
Sunny, with a high near 81. North wind around 7 mph.
Tonight
Mostly clear, with a low around 64. North wind around 6 mph.
Monday
Sunny, with a high near 85. North wind around 6 mph.
Monday Night
Clear, with a low around 66. West wind around 5 mph becoming north after midnight.
Tuesday
Sunny, with a high near 86. North northeast wind around 5 mph becoming southwest in the afternoon.
Tuesday Night
Clear, with a low around 67.
Wednesday
Sunny, with a high near 86.
Wednesday Night
Clear, with a low around 67.
Thursday
Sunny, with a high near 86.
Thursday Night
Clear, with a low around 68.
Friday
Sunny, with a high near 88.
Friday Night
Mostly clear, with a low around 69.
Saturday
Sunny, with a high near 81.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles SSW Saint Helena CA
 38.44°N 122.5°W (Elev. 1398 ft)
2:40 am PDT Mar 15, 2026
4am PDT Mar 15, 2026-6pm PDT Mar 21, 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