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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

80°F

27°C

Humidity 34%
Wind Speed WSW 10 MPH
Barometer NA
Dewpoint 49°F (9°C)
Visibility NA
Heat Index79°F (26°C)
Last update 22 May 02:01 PM PDT
Extended Forecast for

4 Miles NNW Hopland CA

  • This Afternoon

    This Afternoon: Sunny, with a high near 93. West southwest wind around 8 mph.

    High: 93 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 53. West wind around 7 mph becoming southeast in the evening.

    Low: 53 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 84. South southeast wind 7 to 11 mph.

    High: 84 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 50. South southeast wind 7 to 10 mph.

    Low: 50 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 83. South southeast wind 3 to 7 mph.

    High: 83 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 49. Southwest wind 5 to 7 mph becoming calm in the evening.

    Low: 49 °F

    Mostly Clear

  • Memorial Day

    Memorial Day: Mostly sunny, with a high near 75.

    High: 75 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 48.

    Low: 48 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 68.

    High: 68 °F

    Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 93. West southwest wind around 8 mph.
Tonight
Mostly clear, with a low around 53. West wind around 7 mph becoming southeast in the evening.
Saturday
Sunny, with a high near 84. South southeast wind 7 to 11 mph.
Saturday Night
Mostly clear, with a low around 50. South southeast wind 7 to 10 mph.
Sunday
Sunny, with a high near 83. South southeast wind 3 to 7 mph.
Sunday Night
Mostly clear, with a low around 49. Southwest wind 5 to 7 mph becoming calm in the evening.
Memorial Day
Mostly sunny, with a high near 75.
Monday Night
Partly cloudy, with a low around 48.
Tuesday
Sunny, with a high near 68.
Tuesday Night
Clear, with a low around 46. Breezy.
Wednesday
Sunny, with a high near 75.
Wednesday Night
Mostly clear, with a low around 50.
Thursday
Sunny, with a high near 79.
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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:
2:10 pm PDT May 22, 2026
Forecast Valid:
2pm PDT May 22, 2026-6pm PDT May 28, 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

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Chance of Precipitation