Fire Weather Concerns; Record Warmth Spreads

The Plains to the mid-Mississippi Valley continue with warm and dry conditions. Any fires that initiate could spread quickly. The warm temperatures will expand across the Southern Plains into the Southwest where numerous records are expected through the weekend. Meanwhile, a cold front will move southward across the northern Plains and Great Lakes region where some snow will develop this weekend. Read More >

Current conditions at

Santa Rosa, Santa Rosa Sonoma County Airport (KSTS)

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

Clear

63°F

17°C

Humidity 72%
Wind Speed N 0 MPH
Barometer 30.18 in (1022.01 mb)
Dewpoint 54°F (12°C)
Visibility 10.00 mi
Last update 27 Feb 09:53 AM PST
Extended Forecast for

Saint Helena CA

  • Today

    Today: Increasing clouds, with a high near 77. Calm wind.

    High: 77 °F

    Increasing
    Clouds

  • Tonight

    Tonight: Patchy fog between midnight and 1am.  Otherwise, mostly cloudy, with a low around 56. Calm wind.

    Low: 56 °F

    Mostly Cloudy
    then Patchy
    Fog

  • Saturday

    Saturday: Partly sunny, with a high near 75. Calm wind.

    High: 75 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Patchy fog after 1am.  Otherwise, cloudy, with a low around 52. Calm wind.

    Low: 52 °F

    Mostly Cloudy
    then Patchy
    Fog

  • Sunday

    Sunday: Patchy fog before 7am.  Otherwise, mostly cloudy, with a high near 67. Light west southwest wind.

    High: 67 °F

    Patchy Fog
    then Partly
    Sunny

  • Sunday Night

    Sunday Night: A 20 percent chance of rain before 4am.  Patchy fog after midnight.  Otherwise, mostly cloudy, with a low around 46.

    Low: 46 °F

    Slight Chance
    Rain and
    Patchy Fog

  • Monday

    Monday: A 20 percent chance of rain after 10am.  Areas of fog before 8am.  Otherwise, mostly sunny, with a high near 67.

    High: 67 °F

    Slight Chance
    Rain and
    Areas Fog

  • Monday Night

    Monday Night: Patchy fog after 11pm.  Otherwise, partly cloudy, with a low around 46.

    Low: 46 °F

    Patchy Fog

  • Tuesday

    Tuesday: Mostly sunny, with a high near 68.

    High: 68 °F

    Mostly Sunny

Detailed Forecast

Today
Increasing clouds, with a high near 77. Calm wind.
Tonight
Patchy fog between midnight and 1am. Otherwise, mostly cloudy, with a low around 56. Calm wind.
Saturday
Partly sunny, with a high near 75. Calm wind.
Saturday Night
Patchy fog after 1am. Otherwise, cloudy, with a low around 52. Calm wind.
Sunday
Patchy fog before 7am. Otherwise, mostly cloudy, with a high near 67. Light west southwest wind.
Sunday Night
A 20 percent chance of rain before 4am. Patchy fog after midnight. Otherwise, mostly cloudy, with a low around 46.
Monday
A 20 percent chance of rain after 10am. Areas of fog before 8am. Otherwise, mostly sunny, with a high near 67.
Monday Night
Patchy fog after 11pm. Otherwise, partly cloudy, with a low around 46.
Tuesday
Mostly sunny, with a high near 68.
Tuesday Night
Patchy fog after 10pm. Otherwise, mostly cloudy, with a low around 45.
Wednesday
A slight chance of rain. Patchy fog. Otherwise, mostly sunny, with a high near 67.
Wednesday Night
Mostly clear, with a low around 44.
Thursday
Sunny, with a high near 70.
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ABOUT THIS FORECAST

 
Point Forecast:
Saint Helena CA
 38.51°N 122.46°W (Elev. 203 ft)
1:59 am PST Feb 27, 2026
10am PST Feb 27, 2026-6pm PST Mar 5, 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