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

Dangerous Heat and Possible Flooding This Week

Hot temperatures and high humidity are forecast to continue across much of east Texas into the mid-Mississippi Valley through this week. Heavy to excessive rainfall occurring at times through Friday could bring areas of flooding across parts of the central Plains into the upper Midwest and Four Corners states. Read More >

Current conditions at

Santa Rosa, Santa Rosa Sonoma County Airport (KSTS)

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

Clear

46°F

8°C

Humidity 100%
Wind Speed N 0 MPH
Barometer 29.89 in (1012.19 mb)
Dewpoint 46°F (8°C)
Visibility 8.00 mi
Last update 15 Sep 07:35 AM PDT
Extended Forecast for

Calistoga CA

  • Today

    Today: Sunny, with a high near 85. Calm wind becoming southwest around 6 mph in the afternoon.

    High: 85 °F

    Sunny

  • Tonight

    Tonight: Patchy fog after 2am. Otherwise, mostly clear, with a low around 51. Calm wind.

    Low: 51 °F

    Clear then
    Patchy Fog

  • Wednesday

    Wednesday: Areas of fog before 10am. Otherwise, mostly sunny, with a high near 78. Calm wind becoming southwest around 6 mph in the afternoon.

    High: 78 °F

    Areas Fog
    then Sunny

  • Wednesday Night

    Wednesday Night: Patchy fog after 1am. Otherwise, partly cloudy, with a low around 50. Southwest wind around 6 mph becoming calm in the evening.

    Low: 50 °F

    Mostly Clear
    then Patchy
    Fog

  • Thursday

    Thursday: Areas of fog before 9am. Otherwise, mostly sunny, with a high near 81. Calm wind.

    High: 81 °F

    Areas Fog
    then Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 52.

    Low: 52 °F

    Mostly Clear

  • Friday

    Friday: Patchy fog before 7am. Otherwise, sunny, with a high near 85.

    High: 85 °F

    Patchy Fog
    then Sunny

  • Friday Night

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

    Low: 54 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 85.

    High: 85 °F

    Sunny

Detailed Forecast

Today
Sunny, with a high near 85. Calm wind becoming southwest around 6 mph in the afternoon.
Tonight
Patchy fog after 2am. Otherwise, mostly clear, with a low around 51. Calm wind.
Wednesday
Areas of fog before 10am. Otherwise, mostly sunny, with a high near 78. Calm wind becoming southwest around 6 mph in the afternoon.
Wednesday Night
Patchy fog after 1am. Otherwise, partly cloudy, with a low around 50. Southwest wind around 6 mph becoming calm in the evening.
Thursday
Areas of fog before 9am. Otherwise, mostly sunny, with a high near 81. Calm wind.
Thursday Night
Mostly clear, with a low around 52.
Friday
Patchy fog before 7am. Otherwise, sunny, with a high near 85.
Friday Night
Mostly clear, with a low around 54.
Saturday
Sunny, with a high near 85.
Saturday Night
Partly cloudy, with a low around 53.
Sunday
Patchy fog. Otherwise, mostly sunny, with a high near 82.
Sunday Night
Partly cloudy, with a low around 52.
Monday
Patchy fog. Otherwise, mostly sunny, with a high near 82.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Calistoga CA
 38.58°N 122.59°W (Elev. 525 ft)
Last Update:
5:14 am PDT Sep 15, 2026
Forecast Valid:
7am PDT Sep 15, 2026-6pm PDT Sep 21, 2026
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation