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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

85°F

29°C

Humidity 43%
Wind Speed SW 4 MPH
Barometer NA
Dewpoint 60°F (16°C)
Visibility NA
Heat Index85°F (29°C)
Last update 18 Jun 01:01 PM PDT
Extended Forecast for

5 Miles SSE Hopland CA

  • This Afternoon

    This Afternoon: Sunny, with a high near 83. South wind around 8 mph.

    High: 83 °F

    Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 52. South southeast wind 3 to 8 mph.

    Low: 52 °F

    Increasing
    Clouds

  • Juneteenth

    Juneteenth: Mostly cloudy, then gradually becoming sunny, with a high near 76. Calm wind becoming south 5 to 7 mph in the afternoon.

    High: 76 °F

    Decreasing
    Clouds

  • Friday Night

    Friday Night: Patchy fog after 2am. Otherwise, partly cloudy, with a low around 51. South wind 5 to 7 mph becoming calm in the evening.

    Low: 51 °F

    Mostly Clear
    then Patchy
    Fog

  • Saturday

    Saturday: Patchy fog before 8am. Otherwise, sunny, with a high near 81. Calm wind becoming southwest around 6 mph in the afternoon.

    High: 81 °F

    Patchy Fog
    then Sunny

  • Saturday Night

    Saturday Night: Patchy fog after 2am. Otherwise, mostly clear, with a low around 52. West wind 5 to 7 mph becoming calm in the evening.

    Low: 52 °F

    Clear then
    Patchy Fog

  • Sunday

    Sunday: Sunny, with a high near 89.

    High: 89 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 55.

    Low: 55 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 90.

    High: 90 °F

    Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 83. South wind around 8 mph.
Tonight
Increasing clouds, with a low around 52. South southeast wind 3 to 8 mph.
Juneteenth
Mostly cloudy, then gradually becoming sunny, with a high near 76. Calm wind becoming south 5 to 7 mph in the afternoon.
Friday Night
Patchy fog after 2am. Otherwise, partly cloudy, with a low around 51. South wind 5 to 7 mph becoming calm in the evening.
Saturday
Patchy fog before 8am. Otherwise, sunny, with a high near 81. Calm wind becoming southwest around 6 mph in the afternoon.
Saturday Night
Patchy fog after 2am. Otherwise, mostly clear, with a low around 52. West wind 5 to 7 mph becoming calm in the evening.
Sunday
Sunny, with a high near 89.
Sunday Night
Mostly clear, with a low around 55.
Monday
Sunny, with a high near 90.
Monday Night
Patchy fog after 2am. Otherwise, mostly clear, with a low around 56.
Tuesday
Patchy fog. Otherwise, sunny, with a high near 91.
Tuesday Night
Mostly clear, with a low around 57.
Wednesday
Sunny, with a high near 92.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
5 Miles SSE Hopland CA
 38.91°N 123.09°W (Elev. 968 ft)
Last Update:
2:10 am PDT Jun 18, 2026
Forecast Valid:
1pm PDT Jun 18, 2026-6pm PDT Jun 24, 2026
 
Forecast Discussion
 
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Additional Resources

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National Digital Forecast Database

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Chance of Precipitation