National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Severe Thunderstorms in the Midwest and Arizona; Heat Continues in the Southeast and Southwest

Thunderstorms, some severe, may lead to scattered instances of flash flooding across the Midwest and Ohio Valley and southern Arizona. The threat will shift to the Mid-Atlantic coast on Thursday. Dangerous heat persists in the South and Southeast while building into the Southwest. Overnight lows will be so warm that little-to-no relief from the scorching daytime highs will be available. Read More >

Current conditions at

Santa Rosa, Santa Rosa Sonoma County Airport (KSTS)

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

Clear

82°F

28°C

Humidity 42%
Wind Speed S 12 MPH
Barometer 29.88 in (1011.85 mb)
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Heat Index82°F (28°C)
Last update 19 Aug 04:00 PM PDT
Extended Forecast for

3 Miles WNW Calistoga CA

  • Tonight

    Tonight: Increasing clouds, with a low around 55. Southwest wind around 5 mph becoming calm in the evening.

    Low: 55 °F

    Increasing
    Clouds

  • Thursday

    Thursday: Patchy fog before 8am. Otherwise, partly sunny, with a high near 86. Calm wind becoming southwest around 5 mph in the afternoon.

    High: 86 °F

    Patchy Fog
    then Partly
    Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 57. Light west wind.

    Low: 57 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly cloudy, then gradually becoming sunny, with a high near 85. Calm wind becoming southwest around 5 mph in the afternoon.

    High: 85 °F

    Decreasing
    Clouds

  • Friday Night

    Friday Night: Mostly clear, with a low around 53. Southwest wind 5 to 7 mph becoming calm in the evening.

    Low: 53 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 87.

    High: 87 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 54.

    Low: 54 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 87.

    High: 87 °F

    Mostly Sunny

  • Sunday Night

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

    Low: 53 °F

    Mostly Clear
    then Patchy
    Fog

Detailed Forecast

Tonight
Increasing clouds, with a low around 55. Southwest wind around 5 mph becoming calm in the evening.
Thursday
Patchy fog before 8am. Otherwise, partly sunny, with a high near 86. Calm wind becoming southwest around 5 mph in the afternoon.
Thursday Night
Mostly cloudy, with a low around 57. Light west wind.
Friday
Mostly cloudy, then gradually becoming sunny, with a high near 85. Calm wind becoming southwest around 5 mph in the afternoon.
Friday Night
Mostly clear, with a low around 53. Southwest wind 5 to 7 mph becoming calm in the evening.
Saturday
Sunny, with a high near 87.
Saturday Night
Mostly clear, with a low around 54.
Sunday
Mostly sunny, with a high near 87.
Sunday Night
Patchy fog after 3am. Otherwise, mostly clear, with a low around 53.
Monday
Patchy fog before 9am. Otherwise, partly sunny, with a high near 83.
Monday Night
Patchy fog. Otherwise, partly cloudy, with a low around 52.
Tuesday
Patchy fog. Otherwise, partly sunny, with a high near 83.
Tuesday Night
Patchy fog. Otherwise, partly cloudy, with a low around 53.
Wednesday
Areas of fog. Otherwise, mostly sunny, with a high near 85.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles WNW Calistoga CA
 38.6°N 122.63°W (Elev. 505 ft)
Last Update:
1:26 pm PDT Aug 19, 2026
Forecast Valid:
4pm PDT Aug 19, 2026-6pm PDT Aug 26, 2026
 
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