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

Significant Coastal Impacts to the Eastern Seaboard; Tropical Storm Nolo to Impact Hawaii

A Nor'easter will bring significant coastal impacts to the Mid-Atlantic and New England through the weekend. Moderate to major coastal flooding, heavy rain, strong winds and high surf expected. Tropical Storm Nolo will continue to strengthen as it moves north toward the Big Island of Hawaii. Heavy rainfall may bring life-threatening, catastrophic flooding and mudslides through the weekend. Read More >

Current conditions at

LYONS VALLEY (COWC1)

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

NA

64°F

18°C

Humidity 59%
Wind Speed WSW 11 MPH
Barometer NA
Dewpoint 49°F (9°C)
Visibility NA
Last update 25 Sep 01:01 PM PDT
Extended Forecast for

9 Miles SE Potter Valley CA

  • This Afternoon

    This Afternoon: Sunny, with a high near 71. West northwest wind 11 to 13 mph, with gusts as high as 20 mph.

    High: 71 °F

    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 48. West northwest wind 6 to 11 mph becoming light north northwest after midnight.

    Low: 48 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly cloudy, with a high near 72. Calm wind becoming west 5 to 7 mph in the afternoon.

    High: 72 °F

    Mostly Cloudy

  • Saturday Night

    Saturday Night: Cloudy, then gradually becoming partly cloudy, with a low around 49. North northwest wind 5 to 8 mph.

    Low: 49 °F

    Decreasing
    Clouds

  • Sunday

    Sunday: Mostly sunny, with a high near 70. North wind around 6 mph becoming light and variable.

    High: 70 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 48. West wind 5 to 7 mph becoming light and variable in the evening. Winds could gust as high as 18 mph.

    Low: 48 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 77.

    High: 77 °F

    Sunny

  • Monday Night

    Monday Night: Clear, with a low around 53.

    Low: 53 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 82.

    High: 82 °F

    Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 71. West northwest wind 11 to 13 mph, with gusts as high as 20 mph.
Tonight
Partly cloudy, with a low around 48. West northwest wind 6 to 11 mph becoming light north northwest after midnight.
Saturday
Mostly cloudy, with a high near 72. Calm wind becoming west 5 to 7 mph in the afternoon.
Saturday Night
Cloudy, then gradually becoming partly cloudy, with a low around 49. North northwest wind 5 to 8 mph.
Sunday
Mostly sunny, with a high near 70. North wind around 6 mph becoming light and variable.
Sunday Night
Mostly clear, with a low around 48. West wind 5 to 7 mph becoming light and variable in the evening. Winds could gust as high as 18 mph.
Monday
Sunny, with a high near 77.
Monday Night
Clear, with a low around 53.
Tuesday
Sunny, with a high near 82.
Tuesday Night
Clear, with a low around 56.
Wednesday
Sunny, with a high near 83.
Wednesday Night
Mostly clear, with a low around 55.
Thursday
Sunny, with a high near 78.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
9 Miles SE Potter Valley CA
 39.24°N 123°W (Elev. 2900 ft)
Last Update:
11:28 am PDT Sep 25, 2026
Forecast Valid:
1pm PDT Sep 25, 2026-6pm PDT Oct 1, 2026
 
Forecast Discussion
 
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Additional Resources

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