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

38°F

3°C

Humidity 86%
Wind Speed E 3 MPH
Barometer NA
Dewpoint 34°F (1°C)
Visibility NA
Last update 13 Apr 03:01 AM PDT
Extended Forecast for

10 Miles NNW Lakeport CA

Frost Advisory until April 13, 08:00am
Click here for hazard details and duration
Frost Advisory
  •  
    Frost Advisory until April 13, 08:00am

    NOW until 8:00am Mon

    Frost Advisory

  • Overnight

    Low: 33 °F

    Partly Cloudy

  • Monday

    Monday: Patchy fog between 8am and 11am. Otherwise, sunny, with a high near 61. West northwest wind 3 to 8 mph.

    High: 61 °F

    Patchy Fog
    then Mostly
    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 36. Northwest wind 9 to 13 mph.

    Low: 36 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 63. Northwest wind 5 to 8 mph.

    High: 63 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 38. Northwest wind 8 to 11 mph.

    Low: 38 °F

    Partly Cloudy

  • Wednesday

    Wednesday: A 20 percent chance of rain after 11am. Partly sunny, with a high near 59. West northwest wind 6 to 10 mph, with gusts as high as 20 mph.

    High: 59 °F

    Slight Chance
    Rain

  • Wednesday Night

    Wednesday Night: A 40 percent chance of rain before 11pm. Mostly cloudy, with a low around 33. New precipitation amounts of less than a tenth of an inch possible.

    Low: 33 °F

    Chance Rain
    then Partly
    Cloudy

  • Thursday

    Thursday: Sunny, with a high near 63.

    High: 63 °F

    Sunny

Detailed Forecast

Overnight
Partly cloudy, with a low around 33. Northwest wind around 7 mph.
Monday
Patchy fog between 8am and 11am. Otherwise, sunny, with a high near 61. West northwest wind 3 to 8 mph.
Monday Night
Partly cloudy, with a low around 36. Northwest wind 9 to 13 mph.
Tuesday
Mostly sunny, with a high near 63. Northwest wind 5 to 8 mph.
Tuesday Night
Partly cloudy, with a low around 38. Northwest wind 8 to 11 mph.
Wednesday
A 20 percent chance of rain after 11am. Partly sunny, with a high near 59. West northwest wind 6 to 10 mph, with gusts as high as 20 mph.
Wednesday Night
A 40 percent chance of rain before 11pm. Mostly cloudy, with a low around 33. New precipitation amounts of less than a tenth of an inch possible.
Thursday
Sunny, with a high near 63.
Thursday Night
Clear, with a low around 36.
Friday
Sunny, with a high near 70.
Friday Night
Partly cloudy, with a low around 41.
Saturday
Mostly sunny, with a high near 70.
Saturday Night
A slight chance of rain. Partly cloudy, with a low around 42.
Sunday
A chance of rain. Partly sunny, with a high near 65.
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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 13, 2026
Forecast Valid:
3am PDT Apr 13, 2026-6pm PDT Apr 19, 2026
 
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