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

42°F

6°C

Humidity 89%
Wind Speed NW 13 MPH
Barometer NA
Dewpoint 39°F (4°C)
Visibility NA
Wind Chill35°F (2°C)
Last update 14 Apr 04:01 AM PDT
Extended Forecast for

10 Miles NNW Lakeport CA

Frost Advisory until April 14, 08:00am
Click here for hazard details and duration
Frost Advisory
  •  
    Frost Advisory until April 14, 08:00am

    NOW until 8:00am Tue

    Frost Advisory

  • Overnight

    Low: 37 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 64. Northwest wind 5 to 8 mph.

    High: 64 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Increasing clouds, with a low around 37. Northwest wind 8 to 11 mph.

    Low: 37 °F

    Increasing
    Clouds

  • Wednesday

    Wednesday: Partly sunny, with a high near 60. West northwest wind 6 to 11 mph, with gusts as high as 22 mph.

    High: 60 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: A 20 percent chance of showers before 11pm. Areas of frost after 5am. Otherwise, mostly cloudy, with a low around 32. West wind 7 to 11 mph, with gusts as high as 24 mph.

    Low: 32 °F

    Slight Chance
    Showers then
    Areas Frost

  • Thursday

    Thursday: Areas of frost before 8am. Otherwise, sunny, with a high near 63. North northwest wind 5 to 7 mph.

    High: 63 °F

    Areas Frost
    then Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 34.

    Low: 34 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 69.

    High: 69 °F

    Sunny

Detailed Forecast

Overnight
Partly cloudy, with a low around 37. Northwest wind around 7 mph.
Tuesday
Sunny, with a high near 64. Northwest wind 5 to 8 mph.
Tuesday Night
Increasing clouds, with a low around 37. Northwest wind 8 to 11 mph.
Wednesday
Partly sunny, with a high near 60. West northwest wind 6 to 11 mph, with gusts as high as 22 mph.
Wednesday Night
A 20 percent chance of showers before 11pm. Areas of frost after 5am. Otherwise, mostly cloudy, with a low around 32. West wind 7 to 11 mph, with gusts as high as 24 mph.
Thursday
Areas of frost before 8am. Otherwise, sunny, with a high near 63. North northwest wind 5 to 7 mph.
Thursday Night
Clear, with a low around 34.
Friday
Sunny, with a high near 69.
Friday Night
Partly cloudy, with a low around 40.
Saturday
Mostly sunny, with a high near 70.
Saturday Night
A slight chance of rain. Mostly cloudy, with a low around 43.
Sunday
A chance of rain. Mostly cloudy, with a high near 61.
Sunday Night
A chance of rain. Mostly cloudy, with a low around 39.
Monday
A chance of rain. Partly sunny, with a high near 59.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
10 Miles NNW Lakeport CA
 39.17°N 122.98°W (Elev. 1998 ft)
Last Update:
2:10 am PDT Apr 14, 2026
Forecast Valid:
5am PDT Apr 14, 2026-6pm PDT Apr 20, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation