Inclement Weather in the Pacific Northwest; Severe Thunderstorms in the Southeast; Impending Winter Storm

An approaching storm will bring rain and high elevation snow to Pacific Northwest through the weekend. Isolated severe thunderstorms are possible across parts of the Southeast today into this evening as a low strengthens over the Southeast. This system will form into a winter storm on Sunday that will bring heavy snow, high winds, and coastal flooding to the Mid-Atlantic and Northeast into Monday. Read More >

Current conditions at

Santa Rosa, Santa Rosa Sonoma County Airport (KSTS)

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

Clear

37°F

3°C

Humidity 93%
Wind Speed W 3 MPH
Barometer 30.11 in (1019.64 mb)
Dewpoint 36°F (2°C)
Visibility 10.00 mi
Last update 21 Feb 08:20 AM PST
Extended Forecast for

4 Miles W Saint Helena CA

Cold Weather Advisory February 21, 08:36am until February 21, 09:00am
Click here for hazard details and duration
...
  •  
    Cold Weather Advisory February 21, 08:36am until February 21, 09:00am

    NOW until 9:00am Sat

    Cold Weather Advisory

  • Today

    High: 49 °F

    Partly Sunny

  • Tonight

    Tonight: A 30 percent chance of rain, mainly after 3am.  Mostly cloudy, with a low around 47. South southeast wind around 11 mph, with gusts as high as 22 mph.

    Low: 47 °F

    Mostly Cloudy
    then Chance
    Rain

  • Sunday

    Sunday: A 50 percent chance of rain, mainly before 4pm.  Mostly cloudy, with a high near 54. South southeast wind 7 to 9 mph.  New precipitation amounts of less than a tenth of an inch possible.

    High: 54 °F

    Chance Rain

  • Sunday Night

    Sunday Night: A 20 percent chance of rain before 10pm.  Mostly cloudy, with a low around 50. South southeast wind around 6 mph becoming light and variable  in the evening.

    Low: 50 °F

    Slight Chance
    Rain then
    Mostly Cloudy

  • Monday

    Monday: A 30 percent chance of rain, mainly after 4pm.  Mostly cloudy, with a high near 58. Light and variable wind becoming east around 5 mph in the morning.  New precipitation amounts of less than a tenth of an inch possible.

    High: 58 °F

    Chance Rain

  • Monday Night

    Monday Night: Rain, mainly after 10pm.  Low around 53. Chance of precipitation is 80%. New precipitation amounts between a half and three quarters of an inch possible.

    Low: 53 °F

    Rain

  • Tuesday

    Tuesday: Rain.  High near 58. Chance of precipitation is 90%.

    High: 58 °F

    Rain

  • Tuesday Night

    Tuesday Night: Rain, mainly before 10pm.  Cloudy, with a low around 54.

    Low: 54 °F

    Rain

Detailed Forecast

Today
Partly sunny, with a high near 49. South southeast wind 7 to 10 mph, with gusts as high as 22 mph.
Tonight
A 30 percent chance of rain, mainly after 3am. Mostly cloudy, with a low around 47. South southeast wind around 11 mph, with gusts as high as 22 mph.
Sunday
A 50 percent chance of rain, mainly before 4pm. Mostly cloudy, with a high near 54. South southeast wind 7 to 9 mph. New precipitation amounts of less than a tenth of an inch possible.
Sunday Night
A 20 percent chance of rain before 10pm. Mostly cloudy, with a low around 50. South southeast wind around 6 mph becoming light and variable in the evening.
Monday
A 30 percent chance of rain, mainly after 4pm. Mostly cloudy, with a high near 58. Light and variable wind becoming east around 5 mph in the morning. New precipitation amounts of less than a tenth of an inch possible.
Monday Night
Rain, mainly after 10pm. Low around 53. Chance of precipitation is 80%. New precipitation amounts between a half and three quarters of an inch possible.
Tuesday
Rain. High near 58. Chance of precipitation is 90%.
Tuesday Night
Rain, mainly before 10pm. Cloudy, with a low around 54.
Wednesday
A chance of rain. Mostly cloudy, with a high near 58.
Wednesday Night
A chance of rain. Mostly cloudy, with a low around 51.
Thursday
A chance of rain. Mostly sunny, with a high near 62.
Thursday Night
A slight chance of rain. Partly cloudy, with a low around 52.
Friday
Mostly sunny, with a high near 64.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles W Saint Helena CA
 38.52°N 122.55°W (Elev. 1998 ft)
7:14 am PST Feb 21, 2026
8am PST Feb 21, 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