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

LYONS VALLEY (COWC1)

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

NA

48°F

9°C

Humidity 12%
Wind Speed SE 9 MPH
Barometer NA
Dewpoint -2°F (-19°C)
Visibility NA
Wind Chill44°F (7°C)
Last update 19 Apr 10:01 PM PDT
Extended Forecast for

9 Miles N Lakeport CA

  • Tonight

    Tonight: A 50 percent chance of rain, mainly after 2am. Mostly cloudy, with a low around 41. East southeast wind around 6 mph. New precipitation amounts of less than a tenth of an inch possible.

    Low: 41 °F

    Slight Chance
    Rain then
    Chance Rain

  • Monday

    Monday: Rain. High near 56. South wind 7 to 11 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

    High: 56 °F

    Rain

  • Monday Night

    Monday Night: Rain. Low around 38. South wind around 5 mph becoming calm in the evening. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 38 °F

    Rain

  • Tuesday

    Tuesday: Rain before 11am, then showers and possibly a thunderstorm after 11am. High near 57. Calm wind becoming south 5 to 7 mph in the afternoon. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

    High: 57 °F

    Showers

  • Tuesday Night

    Tuesday Night: Showers and possibly a thunderstorm before 8pm, then rain, mainly between 8pm and 11pm. Low around 37. Southwest wind 5 to 7 mph becoming calm in the evening. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 37 °F

    Showers then
    Chance Rain

  • Wednesday

    Wednesday: A 30 percent chance of rain. Partly sunny, with a high near 62. Calm wind becoming west 5 to 8 mph in the afternoon.

    High: 62 °F

    Chance Rain

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 35.

    Low: 35 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 70.

    High: 70 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 39.

    Low: 39 °F

    Mostly Clear

Detailed Forecast

Tonight
A 50 percent chance of rain, mainly after 2am. Mostly cloudy, with a low around 41. East southeast wind around 6 mph. New precipitation amounts of less than a tenth of an inch possible.
Monday
Rain. High near 56. South wind 7 to 11 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Monday Night
Rain. Low around 38. South wind around 5 mph becoming calm in the evening. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Tuesday
Rain before 11am, then showers and possibly a thunderstorm after 11am. High near 57. Calm wind becoming south 5 to 7 mph in the afternoon. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Tuesday Night
Showers and possibly a thunderstorm before 8pm, then rain, mainly between 8pm and 11pm. Low around 37. Southwest wind 5 to 7 mph becoming calm in the evening. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday
A 30 percent chance of rain. Partly sunny, with a high near 62. Calm wind becoming west 5 to 8 mph in the afternoon.
Wednesday Night
Partly cloudy, with a low around 35.
Thursday
Sunny, with a high near 70.
Thursday Night
Mostly clear, with a low around 39.
Friday
Sunny, with a high near 74.
Friday Night
Mostly clear, with a low around 41.
Saturday
Mostly sunny, with a high near 73.
Saturday Night
Partly cloudy, with a low around 41.
Sunday
Mostly sunny, with a high near 73.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
9 Miles N Lakeport CA
 39.18°N 122.96°W (Elev. 1391 ft)
Last Update:
2:10 pm PDT Apr 19, 2026
Forecast Valid:
10pm PDT Apr 19, 2026-6pm PDT Apr 26, 2026
 
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