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

Atmospheric River Continues Areas of Heavy Rain and Snow for California This Weekend

An atmospheric river will continue to bring gusty winds, moderate to heavy rainfall, and potential flooding to southern California and the southern Great Basin through Sunday. Periods of heavy snow will continue as well above 7,000 feet over the Sierra Nevada mountains associated with this atmospheric river. Read More >

Current conditions at

STONYFORD (SYWC1)

Lat: 39.35523°NLon: 122.65831°WElev: 1540.0ft.

NA

47°F

8°C

Humidity 94%
Wind Speed SW 1 MPH
Barometer NA
Dewpoint 45°F (7°C)
Visibility NA
Last update 14 Nov 08:26 PM PST
Extended Forecast for

22 Miles NNE Lakeport CA

  • Tonight

    Tonight: Partly cloudy, with a low around 43. North wind 5 to 7 mph.

    Low: 43 °F

    Partly Cloudy

  • Saturday

    Saturday: A 10 percent chance of showers after 4pm. Partly sunny, with a high near 58. North wind 3 to 8 mph.

    High: 58 °F

    Mostly Sunny
    then Slight
    Chance
    Showers

  • Saturday Night

    Saturday Night: A 40 percent chance of showers, mainly after 10pm. Mostly cloudy, with a low around 43. North northwest wind 3 to 6 mph. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 43 °F

    Chance
    Showers

  • Sunday

    Sunday: Showers, mainly after 10am. High near 45. South southwest wind 6 to 9 mph, with gusts as high as 18 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 45 °F

    Showers

  • Sunday Night

    Sunday Night: Showers. Low around 40. Southeast wind 14 to 16 mph, with gusts as high as 31 mph. Chance of precipitation is 90%.

    Low: 40 °F

    Showers

  • Monday

    Monday: Showers likely before 10am, then showers likely and possibly a thunderstorm between 10am and 4pm, then a slight chance of showers and thunderstorms after 4pm. Mostly cloudy, with a high near 42. Chance of precipitation is 70%.

    High: 42 °F

    Showers
    Likely

  • Monday Night

    Monday Night: A 20 percent chance of showers before 10pm. Partly cloudy, with a low around 39.

    Low: 39 °F

    Slight Chance
    Showers then
    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 49.

    High: 49 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 40.

    Low: 40 °F

    Mostly Clear

Detailed Forecast

Tonight
Partly cloudy, with a low around 43. North wind 5 to 7 mph.
Saturday
A 10 percent chance of showers after 4pm. Partly sunny, with a high near 58. North wind 3 to 8 mph.
Saturday Night
A 40 percent chance of showers, mainly after 10pm. Mostly cloudy, with a low around 43. North northwest wind 3 to 6 mph. New precipitation amounts between a tenth and quarter of an inch possible.
Sunday
Showers, mainly after 10am. High near 45. South southwest wind 6 to 9 mph, with gusts as high as 18 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Sunday Night
Showers. Low around 40. Southeast wind 14 to 16 mph, with gusts as high as 31 mph. Chance of precipitation is 90%.
Monday
Showers likely before 10am, then showers likely and possibly a thunderstorm between 10am and 4pm, then a slight chance of showers and thunderstorms after 4pm. Mostly cloudy, with a high near 42. Chance of precipitation is 70%.
Monday Night
A 20 percent chance of showers before 10pm. Partly cloudy, with a low around 39.
Tuesday
Sunny, with a high near 49.
Tuesday Night
Mostly clear, with a low around 40.
Wednesday
A chance of showers, mainly after 4pm. Mostly sunny, with a high near 47.
Wednesday Night
Showers likely. Mostly cloudy, with a low around 41.
Thursday
Showers likely. Partly sunny, with a high near 43.
Thursday Night
A chance of showers. Mostly cloudy, with a low around 41.
Friday
Mostly sunny, with a high near 50.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
22 Miles NNE Lakeport CA
 39.31°N 122.7°W (Elev. 4029 ft)
Last Update:
1:21 pm PST Nov 14, 2025
Forecast Valid:
9pm PST Nov 14, 2025-6pm PST Nov 21, 2025
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation