Severe Thunderstorms and Heavy Rain in the Mid-Atlantic; Heat Persists Across the South

Scattered severe thunderstorms and excessive rainfall are possible into the night in the Mid Atlantic, and heavy rain will shift to Virginia and the Carolinas on Friday. Severe thunderstorms are also possible in the Central Plains into the Upper MS Valley and the Deep South tonight. Dangerous heat persists across the Southern Plains and Lower MS Valley and heat will expand into the Southwest. Read More >

Current conditions at

Santa Rosa, Santa Rosa Sonoma County Airport (KSTS)

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

Overcast

56°F

13°C

Humidity 96%
Wind Speed S 3 MPH
Barometer 30.02 in (1016.59 mb)
Dewpoint 55°F (13°C)
Visibility 9.00 mi
Last update 21 Aug 05:53 AM PDT
Extended Forecast for

Calistoga CA

  • Today

    Today: Patchy fog before 9am.  Otherwise, mostly sunny, with a high near 82. Calm wind becoming southwest around 6 mph in the afternoon.

    High: 82 °F

    Patchy Fog
    then Mostly
    Sunny

  • Tonight

    Tonight: Patchy fog after 2am.  Otherwise, mostly clear, with a low around 53. Calm wind.

    Low: 53 °F

    Clear then
    Patchy Fog

  • Saturday

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

    High: 86 °F

    Patchy Fog
    then Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 54. West southwest wind 5 to 7 mph becoming calm  in the evening.

    Low: 54 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 86. Calm wind becoming south southwest around 5 mph in the afternoon.

    High: 86 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Patchy fog after 3am.  Otherwise, mostly cloudy, with a low around 53.

    Low: 53 °F

    Partly Cloudy
    then Patchy
    Fog

  • Monday

    Monday: Patchy fog before 9am.  Otherwise, mostly sunny, with a high near 83.

    High: 83 °F

    Patchy Fog
    then Sunny

  • Monday Night

    Monday Night: Patchy fog after midnight.  Otherwise, mostly clear, with a low around 52.

    Low: 52 °F

    Mostly Clear
    then Patchy
    Fog

  • Tuesday

    Tuesday: Areas of fog before 9am.  Otherwise, mostly sunny, with a high near 84.

    High: 84 °F

    Areas Fog
    then Mostly
    Sunny

Detailed Forecast

Today
Patchy fog before 9am. Otherwise, mostly sunny, with a high near 82. Calm wind becoming southwest around 6 mph in the afternoon.
Tonight
Patchy fog after 2am. Otherwise, mostly clear, with a low around 53. Calm wind.
Saturday
Patchy fog before 8am. Otherwise, sunny, with a high near 86. Calm wind becoming west southwest around 6 mph in the afternoon.
Saturday Night
Mostly clear, with a low around 54. West southwest wind 5 to 7 mph becoming calm in the evening.
Sunday
Mostly sunny, with a high near 86. Calm wind becoming south southwest around 5 mph in the afternoon.
Sunday Night
Patchy fog after 3am. Otherwise, mostly cloudy, with a low around 53.
Monday
Patchy fog before 9am. Otherwise, mostly sunny, with a high near 83.
Monday Night
Patchy fog after midnight. Otherwise, mostly clear, with a low around 52.
Tuesday
Areas of fog before 9am. Otherwise, mostly sunny, with a high near 84.
Tuesday Night
Patchy fog after 3am. Otherwise, partly cloudy, with a low around 53.
Wednesday
Patchy fog. Otherwise, mostly sunny, with a high near 87.
Wednesday Night
Mostly clear, with a low around 54.
Thursday
Mostly sunny, with a high near 88.
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ABOUT THIS FORECAST

 
Point Forecast:
Calistoga CA
 38.58°N 122.59°W (Elev. 525 ft)
2:16 am PDT Aug 21, 2026
6am PDT Aug 21, 2026-6pm PDT Aug 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