Critical Fire Weather in the Southern High Plains; Heavy Snow in the Great Lakes and Northeast U.S.

Gusty winds and low relative humidity will bring elevated to critical fire weather conditions to the southern High Plains through the weekend. A winter storm will track across the Great Lakes and Northeast U.S. into Saturday with areas of wintry mix and heavy snow from northern New York through southern Maine. Read More >

Current conditions at

Santa Rosa, Santa Rosa Sonoma County Airport (KSTS)

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

Clear

43°F

6°C

Humidity 79%
Wind Speed SE 3 MPH
Barometer 30.06 in (1017.95 mb)
Dewpoint 37°F (3°C)
Visibility 10.00 mi
Last update 20 Feb 07:53 PM PST
Extended Forecast for

4 Miles W Saint Helena CA

Cold Weather Advisory February 21, 01:00am until February 21, 09:00am
Click here for hazard details and duration
Cold Weather Advisory
  • Tonight

    Tonight: Partly cloudy, with a low around 40. Southeast wind 5 to 8 mph.

    Low: 40 °F

    Partly Cloudy

  • Saturday

    Saturday: A chance of rain between 4pm and 5pm.  Partly sunny, with a high near 49. East southeast wind 9 to 14 mph, with gusts as high as 25 mph.  Chance of precipitation is 30%.

    High: 49 °F

    Partly Sunny
    then Chance
    Rain

  • Saturday Night

    Saturday Night: Rain likely, mainly after 4am.  Mostly cloudy, with a low around 47. Southeast wind around 15 mph, with gusts as high as 26 mph.  Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 47 °F

    Rain Likely

  • Sunday

    Sunday: Rain likely, mainly before 10am.  Mostly cloudy, with a high near 55. Southeast wind 10 to 13 mph, with gusts as high as 22 mph.  Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 55 °F

    Rain Likely

  • Sunday Night

    Sunday Night: A 40 percent chance of rain, mainly before 10pm.  Mostly cloudy, with a low around 52. South wind 5 to 7 mph becoming east after midnight.  New precipitation amounts of less than a tenth of an inch possible.

    Low: 52 °F

    Chance Rain

  • Monday

    Monday: Rain likely, mainly after 4pm.  Mostly cloudy, with a high near 58. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 58 °F

    Slight Chance
    Rain then
    Rain Likely

  • Monday Night

    Monday Night: Rain.  Low around 54. Chance of precipitation is 80%.

    Low: 54 °F

    Rain

  • Tuesday

    Tuesday: Rain.  Cloudy, with a high near 58.

    High: 58 °F

    Rain

  • Tuesday Night

    Tuesday Night: Rain likely, mainly before 10pm.  Cloudy, with a low around 55.

    Low: 55 °F

    Rain Likely

Detailed Forecast

Tonight
Partly cloudy, with a low around 40. Southeast wind 5 to 8 mph.
Saturday
A chance of rain between 4pm and 5pm. Partly sunny, with a high near 49. East southeast wind 9 to 14 mph, with gusts as high as 25 mph. Chance of precipitation is 30%.
Saturday Night
Rain likely, mainly after 4am. Mostly cloudy, with a low around 47. Southeast wind around 15 mph, with gusts as high as 26 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Sunday
Rain likely, mainly before 10am. Mostly cloudy, with a high near 55. Southeast wind 10 to 13 mph, with gusts as high as 22 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Sunday Night
A 40 percent chance of rain, mainly before 10pm. Mostly cloudy, with a low around 52. South wind 5 to 7 mph becoming east after midnight. New precipitation amounts of less than a tenth of an inch possible.
Monday
Rain likely, mainly after 4pm. Mostly cloudy, with a high near 58. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Monday Night
Rain. Low around 54. Chance of precipitation is 80%.
Tuesday
Rain. Cloudy, with a high near 58.
Tuesday Night
Rain likely, mainly before 10pm. Cloudy, with a low around 55.
Wednesday
A chance of rain. Mostly cloudy, with a high near 57.
Wednesday Night
A chance of rain. Mostly cloudy, with a low around 53.
Thursday
A chance of rain. Partly sunny, with a high near 61.
Thursday Night
A chance of rain. Mostly cloudy, with a low around 53.
Friday
A slight chance of rain. Mostly sunny, with a high near 64.
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)
2:25 pm PST Feb 20, 2026
8pm PST Feb 20, 2026-6pm PST Feb 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