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

Hot Temperatures in the West; Heavy Rainfall and Flooding Potential in the Southwest

Hot to extremely hot temperatures are in place across coastal southern California again today and the interior Northwest U.S into Thursday, with the Pacific Northwest carrying the potential for record-breaking high temperatures. A combination of monsoonal moisture and tropical moisture ahead of tropical cyclone Lorena will bring heavy rainfall and the potential for flooding through the week. 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 89%
Wind Speed NNW 4 MPH
Barometer 29.99 in (1015.58 mb)
Dewpoint 56°F (13°C)
Visibility 6.00 mi
Last update 03 Sep 06:53 AM PDT
Extended Forecast for

Calistoga CA

  • Today

    Today: Patchy fog before 9am. Otherwise, sunny, with a high near 89. Calm wind becoming southwest 5 to 8 mph in the afternoon.

    High: 89 °F

    Patchy Fog
    then Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 53. West southwest wind around 5 mph becoming calm in the evening.

    Low: 53 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 84. Southwest wind 3 to 8 mph.

    High: 84 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 53. West southwest wind 5 to 9 mph.

    Low: 53 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 82. Southwest wind 5 to 9 mph.

    High: 82 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 53.

    Low: 53 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 82.

    High: 82 °F

    Sunny

  • Saturday Night

    Saturday Night: Patchy fog after 4am. Otherwise, mostly clear, with a low around 53.

    Low: 53 °F

    Clear then
    Patchy Fog

  • Sunday

    Sunday: Patchy fog before 9am. Otherwise, sunny, with a high near 82.

    High: 82 °F

    Patchy Fog
    then Sunny

Detailed Forecast

Today
Patchy fog before 9am. Otherwise, sunny, with a high near 89. Calm wind becoming southwest 5 to 8 mph in the afternoon.
Tonight
Mostly clear, with a low around 53. West southwest wind around 5 mph becoming calm in the evening.
Thursday
Sunny, with a high near 84. Southwest wind 3 to 8 mph.
Thursday Night
Mostly clear, with a low around 53. West southwest wind 5 to 9 mph.
Friday
Sunny, with a high near 82. Southwest wind 5 to 9 mph.
Friday Night
Mostly clear, with a low around 53.
Saturday
Sunny, with a high near 82.
Saturday Night
Patchy fog after 4am. Otherwise, mostly clear, with a low around 53.
Sunday
Patchy fog before 9am. Otherwise, sunny, with a high near 82.
Sunday Night
Mostly clear, with a low around 53.
Monday
Sunny, with a high near 81.
Monday Night
Mostly clear, with a low around 54.
Tuesday
Sunny, with a high near 80.
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ABOUT THIS FORECAST

 
Point Forecast:
Calistoga CA
 38.58°N 122.59°W (Elev. 525 ft)
Last Update:
1:26 am PDT Sep 3, 2025
Forecast Valid:
7am PDT Sep 3, 2025-6pm PDT Sep 9, 2025
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation