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Check Water Temperatures Before Your River Visit

Water temperatures below 70 degrees causes you to lose breathing & muscle control which can lead to drowning. The colder the water the more extreme the impacts. Enjoy the river by staying dry when water is cold. Read More >

Current conditions at

LYONS VALLEY (COWC1)

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

NA

77°F

25°C

Humidity 28%
Wind Speed WNW 5 MPH
Barometer NA
Dewpoint 41°F (5°C)
Visibility NA
Heat Index78°F (26°C)
Last update 12 Jul 09:01 AM PDT
Extended Forecast for

11 Miles NNW Lakeport CA

  • Today

    Today: Partly sunny, with a high near 96. Light and variable wind becoming west 5 to 10 mph in the afternoon.

    High: 96 °F

    Partly Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 61. North northwest wind 8 to 13 mph, with gusts as high as 18 mph.

    Low: 61 °F

    Mostly Cloudy

  • Monday

    Monday: A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 92. North northeast wind 5 to 7 mph becoming south in the morning.

    High: 92 °F

    Slight Chance
    T-storms

  • Monday Night

    Monday Night: Mostly clear, with a low around 60. West southwest wind 6 to 9 mph becoming north after midnight. Winds could gust as high as 18 mph.

    Low: 60 °F

    Mostly Clear

  • Tuesday

    Tuesday: A 10 percent chance of showers and thunderstorms before 11am. Sunny, with a high near 94. Light and variable wind becoming west southwest 5 to 10 mph in the afternoon.

    High: 94 °F

    Slight Chance
    T-storms then
    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 58. West wind 8 to 11 mph becoming north northwest after midnight. Winds could gust as high as 24 mph.

    Low: 58 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 91.

    High: 91 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 54.

    Low: 54 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 91.

    High: 91 °F

    Sunny

Detailed Forecast

Today
Partly sunny, with a high near 96. Light and variable wind becoming west 5 to 10 mph in the afternoon.
Tonight
Mostly cloudy, with a low around 61. North northwest wind 8 to 13 mph, with gusts as high as 18 mph.
Monday
A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 92. North northeast wind 5 to 7 mph becoming south in the morning.
Monday Night
Mostly clear, with a low around 60. West southwest wind 6 to 9 mph becoming north after midnight. Winds could gust as high as 18 mph.
Tuesday
A 10 percent chance of showers and thunderstorms before 11am. Sunny, with a high near 94. Light and variable wind becoming west southwest 5 to 10 mph in the afternoon.
Tuesday Night
Mostly clear, with a low around 58. West wind 8 to 11 mph becoming north northwest after midnight. Winds could gust as high as 24 mph.
Wednesday
Sunny, with a high near 91.
Wednesday Night
Mostly clear, with a low around 54.
Thursday
Sunny, with a high near 91.
Thursday Night
Mostly clear, with a low around 56.
Friday
Sunny, with a high near 93.
Friday Night
Mostly clear, with a low around 58.
Saturday
Sunny, with a high near 90.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
11 Miles NNW Lakeport CA
 39.2°N 122.99°W (Elev. 1801 ft)
Last Update:
2:10 am PDT Jul 12, 2026
Forecast Valid:
9am PDT Jul 12, 2026-6pm PDT Jul 18, 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