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

Hazardous Weather Conditions

Current conditions at

LYONS VALLEY (COWC1)

Lat: 39.12583°NLon: 123.07333°WElev: 3355.0ft.

NA

26°F

-3°C

Humidity 97%
Wind Speed W 8 MPH
Barometer NA
Dewpoint 25°F (-4°C)
Visibility NA
Wind Chill18°F (-8°C)
Last update 17 Feb 10:01 PM PST
Extended Forecast for

4 Miles NNW Hopland CA

Cold Weather Advisory February 18, 05:48am until February 18, 07:00am
Click here for hazard details and duration
Cold Weather Advisory
  •  
    Cold Weather Advisory February 18, 05:48am until February 18, 07:00am

    NOW until 7:00am Wed

    Cold Weather Advisory

  • Overnight

    Low: 30 °F

    Rain/Snow
    Likely

  • Wednesday

    Wednesday: Rain and snow showers likely, becoming all rain after 7am. Patchy fog between 7am and 1pm. Otherwise, mostly cloudy, with a high near 47. Calm wind becoming west southwest around 5 mph in the afternoon. Chance of precipitation is 60%. Little or no snow accumulation expected.

    High: 47 °F

    Rain/Snow
    Likely and
    Patchy Fog

  • Wednesday Night

    Wednesday Night: Showers, mainly after 10pm. Low around 35. South southeast wind 5 to 9 mph becoming calm after midnight. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 35 °F

    Showers

  • Thursday

    Thursday: Showers, mainly before 10am. High near 45. Northwest wind 10 to 14 mph, with gusts as high as 24 mph. Chance of precipitation is 100%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 45 °F

    Showers then
    Chance
    Showers

  • Thursday Night

    Thursday Night: A 20 percent chance of showers before 10pm. Partly cloudy, with a low around 25. Northwest wind 6 to 9 mph.

    Low: 25 °F

    Slight Chance
    Showers then
    Mostly Clear

  • Friday

    Friday: A 20 percent chance of showers after 10am. Mostly sunny, with a high near 50. Northeast wind around 6 mph becoming south in the afternoon.

    High: 50 °F

    Slight Chance
    Showers

  • Friday Night

    Friday Night: A 40 percent chance of showers. Mostly cloudy, with a low around 33. New precipitation amounts of less than a tenth of an inch possible.

    Low: 33 °F

    Chance
    Showers

  • Saturday

    Saturday: Showers likely, mainly after 10am. Mostly cloudy, with a high near 50.

    High: 50 °F

    Showers
    Likely

Detailed Forecast

Overnight
Rain and snow showers likely. Mostly cloudy, with a low around 30. Calm wind. Chance of precipitation is 60%. Little or no snow accumulation expected.
Wednesday
Rain and snow showers likely, becoming all rain after 7am. Patchy fog between 7am and 1pm. Otherwise, mostly cloudy, with a high near 47. Calm wind becoming west southwest around 5 mph in the afternoon. Chance of precipitation is 60%. Little or no snow accumulation expected.
Wednesday Night
Showers, mainly after 10pm. Low around 35. South southeast wind 5 to 9 mph becoming calm after midnight. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Thursday
Showers, mainly before 10am. High near 45. Northwest wind 10 to 14 mph, with gusts as high as 24 mph. Chance of precipitation is 100%. New precipitation amounts between a tenth and quarter of an inch possible.
Thursday Night
A 20 percent chance of showers before 10pm. Partly cloudy, with a low around 25. Northwest wind 6 to 9 mph.
Friday
A 20 percent chance of showers after 10am. Mostly sunny, with a high near 50. Northeast wind around 6 mph becoming south in the afternoon.
Friday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 33. New precipitation amounts of less than a tenth of an inch possible.
Saturday
Showers likely, mainly after 10am. Mostly cloudy, with a high near 50.
Saturday Night
Showers. Cloudy, with a low around 45.
Sunday
Showers. Cloudy, with a high near 55.
Sunday Night
Showers. Cloudy, with a low around 45.
Monday
Showers. Cloudy, with a high near 56.
Monday Night
Showers. Cloudy, with a low around 42.
Tuesday
Showers. Cloudy, with a high near 57.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles NNW Hopland CA
 39.03°N 123.15°W (Elev. 597 ft)
Last Update:
1:10 am PST Feb 18, 2026
Forecast Valid:
5am PST Feb 18, 2026-6pm PST Feb 24, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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