Severe Weather and Flooding Threat in the Central U.S. and Mid-Atlantic; Dangerous Heat in the West and Southern Plains

Severe thunderstorms and heavy rain are expected across the central High Plains into parts of the central and southern Plains and in the the Mid-Atlantic today. Intense, dangerous heat will persist across the West, Southwest, and Southern Plains into the end of the week. Elevated to critical fire weather conditions expected in the Great Basin and Four Corners region. Read More >

Current conditions at

Santa Rosa, Santa Rosa Sonoma County Airport (KSTS)

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

Mist

59°F

15°C

Humidity 82%
Wind Speed SSE 5 MPH
Barometer 30.05 in (1017.61 mb)
Dewpoint 54°F (12°C)
Visibility 10.00 mi
Last update 23 Jun 11:00 AM PDT
Extended Forecast for

Saint Helena CA

  • Today

    Today: Sunny, with a high near 89. Calm wind becoming south southwest around 5 mph in the afternoon.

    High: 89 °F

    Sunny

  • Tonight

    Tonight: Patchy fog after 2am.  Otherwise, increasing clouds, with a low around 51. West wind around 5 mph becoming calm  in the evening.

    Low: 51 °F

    Mostly Clear
    then Patchy
    Fog

  • Wednesday

    Wednesday: Patchy fog before 8am.  Otherwise, partly sunny, then gradually becoming sunny, with a high near 86. Calm wind becoming west southwest around 6 mph in the afternoon.

    High: 86 °F

    Patchy Fog
    then Sunny

  • Wednesday Night

    Wednesday Night: Patchy fog after 2am.  Otherwise, increasing clouds, with a low around 52. West southwest wind around 5 mph becoming calm  in the evening.

    Low: 52 °F

    Mostly Clear
    then Patchy
    Fog

  • Thursday

    Thursday: Patchy fog before 7am.  Otherwise, sunny, with a high near 87. Calm wind becoming southwest around 5 mph in the afternoon.

    High: 87 °F

    Patchy Fog
    then Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 56.

    Low: 56 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 83.

    High: 83 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Patchy fog after 2am.  Otherwise, mostly clear, with a low around 54.

    Low: 54 °F

    Mostly Clear
    then Patchy
    Fog

  • Saturday

    Saturday: Sunny, with a high near 81.

    High: 81 °F

    Sunny

Detailed Forecast

Today
Sunny, with a high near 89. Calm wind becoming south southwest around 5 mph in the afternoon.
Tonight
Patchy fog after 2am. Otherwise, increasing clouds, with a low around 51. West wind around 5 mph becoming calm in the evening.
Wednesday
Patchy fog before 8am. Otherwise, partly sunny, then gradually becoming sunny, with a high near 86. Calm wind becoming west southwest around 6 mph in the afternoon.
Wednesday Night
Patchy fog after 2am. Otherwise, increasing clouds, with a low around 52. West southwest wind around 5 mph becoming calm in the evening.
Thursday
Patchy fog before 7am. Otherwise, sunny, with a high near 87. Calm wind becoming southwest around 5 mph in the afternoon.
Thursday Night
Partly cloudy, with a low around 56.
Friday
Mostly sunny, with a high near 83.
Friday Night
Patchy fog after 2am. Otherwise, mostly clear, with a low around 54.
Saturday
Sunny, with a high near 81.
Saturday Night
Mostly clear, with a low around 53.
Sunday
Sunny, with a high near 85.
Sunday Night
Mostly clear, with a low around 55.
Monday
Sunny, with a high near 86.
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ABOUT THIS FORECAST

 
Point Forecast:
Saint Helena CA
 38.51°N 122.46°W (Elev. 203 ft)
10:15 am PDT Jun 23, 2026
11am PDT Jun 23, 2026-6pm PDT Jun 29, 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