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

Tracking Atmospheric River for California; Record Temperatures Further East

An atmospheric river will bring gusty to high winds, moderate to heavy rainfall, and potential flooding to California today through Saturday. Heavy snow will be possible over the Sierra Nevada mountains into Friday associated with this atmospheric river. East of these impacts dozens of record high maximum and high minimum temperatures may be broken or tied today and Friday. Read More >

Current conditions at

Santa Rosa, Santa Rosa Sonoma County Airport (KSTS)

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

light rain,mist

61°F

16°C

Humidity 93%
Wind Speed SSE 8 MPH
Barometer 29.81 in (1009.48 mb)
Dewpoint 59°F (15°C)
Visibility 3.00 mi
Last update 13 Nov 09:35 AM PST
Extended Forecast for

4 Miles SSW Saint Helena CA

  • Today

    Today: Rain before 10am, then showers and possibly a thunderstorm between 10am and 4pm, then rain likely and possibly a thunderstorm after 4pm. Some of the storms could produce heavy rainfall. Temperature rising to near 57 by noon, then falling to around 50 during the remainder of the day. Breezy, with a south wind 16 to 24 mph, with gusts as high as 47 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.

    High: 57 °F⇓

    Heavy Rain
    and Breezy

  • Tonight

    Tonight: Rain likely, mainly before 10pm. Mostly cloudy, with a low around 50. Southwest wind 6 to 16 mph, with gusts as high as 29 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 50 °F

    Rain Likely

  • Friday

    Friday: A 40 percent chance of rain. Mostly cloudy, then gradually becoming sunny, with a steady temperature around 51. East northeast wind 3 to 6 mph. New precipitation amounts of less than a tenth of an inch possible.

    High: 51 °F

    Chance Rain

  • Friday Night

    Friday Night: Mostly clear, with a low around 51. North wind 3 to 6 mph.

    Low: 51 °F

    Mostly Clear

  • Saturday

    Saturday: A 20 percent chance of rain after 10am. Mostly sunny, with a high near 57. North wind around 6 mph becoming calm in the morning. New precipitation amounts of less than a tenth of an inch possible.

    High: 57 °F

    Slight Chance
    Rain

  • Saturday Night

    Saturday Night: A 30 percent chance of rain, mainly before 4am. Mostly cloudy, with a low around 48. New precipitation amounts of less than a tenth of an inch possible.

    Low: 48 °F

    Chance Rain

  • Sunday

    Sunday: A 40 percent chance of rain, mainly after 10am. Mostly cloudy, with a high near 56.

    High: 56 °F

    Chance Rain

  • Sunday Night

    Sunday Night: Rain likely, mainly after 10pm. Mostly cloudy, with a low around 47.

    Low: 47 °F

    Rain Likely

  • Monday

    Monday: A chance of rain, mainly before 4pm. Partly sunny, with a high near 52.

    High: 52 °F

    Chance Rain

Detailed Forecast

Today
Rain before 10am, then showers and possibly a thunderstorm between 10am and 4pm, then rain likely and possibly a thunderstorm after 4pm. Some of the storms could produce heavy rainfall. Temperature rising to near 57 by noon, then falling to around 50 during the remainder of the day. Breezy, with a south wind 16 to 24 mph, with gusts as high as 47 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.
Tonight
Rain likely, mainly before 10pm. Mostly cloudy, with a low around 50. Southwest wind 6 to 16 mph, with gusts as high as 29 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Friday
A 40 percent chance of rain. Mostly cloudy, then gradually becoming sunny, with a steady temperature around 51. East northeast wind 3 to 6 mph. New precipitation amounts of less than a tenth of an inch possible.
Friday Night
Mostly clear, with a low around 51. North wind 3 to 6 mph.
Saturday
A 20 percent chance of rain after 10am. Mostly sunny, with a high near 57. North wind around 6 mph becoming calm in the morning. New precipitation amounts of less than a tenth of an inch possible.
Saturday Night
A 30 percent chance of rain, mainly before 4am. Mostly cloudy, with a low around 48. New precipitation amounts of less than a tenth of an inch possible.
Sunday
A 40 percent chance of rain, mainly after 10am. Mostly cloudy, with a high near 56.
Sunday Night
Rain likely, mainly after 10pm. Mostly cloudy, with a low around 47.
Monday
A chance of rain, mainly before 4pm. Partly sunny, with a high near 52.
Monday Night
A slight chance of rain before 10pm. Partly cloudy, with a low around 46.
Tuesday
Mostly sunny, with a high near 51.
Tuesday Night
Mostly clear, with a low around 46.
Wednesday
A chance of rain. Mostly sunny, with a high near 53.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles SSW Saint Helena CA
 38.46°N 122.5°W (Elev. 2372 ft)
Last Update:
2:09 am PST Nov 13, 2025
Forecast Valid:
9am PST Nov 13, 2025-6pm PST Nov 19, 2025
 
Forecast Discussion
 
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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