Hazardous Coastal Conditions for the Mid-Atlantic; Storm System Approaching Southern Alaska

A Nor'easter will create hazardous marine and coastal conditions along the Mid-Atlantic coast through mid-week, with significant coastal flooding and beach erosion possible. Meanwhile, another strong storm system is forecast to bring high winds and heavy precipitation to portions of southern Alaska. Elsewhere, relatively benign weather is expected through the first half of the work week. Read More >

Current conditions at

LYONS VALLEY (COWC1)

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

NA

74°F

23°C

Humidity 25%
Wind Speed WSW 8 MPH
Barometer NA
Dewpoint 36°F (2°C)
Visibility NA
Last update 18 Oct 03:01 PM PDT
Extended Forecast for

10 Miles SE Potter Valley CA

  • Tonight

    Tonight: Partly cloudy, with a low around 41. Breezy, with a north northwest wind 11 to 16 mph, with gusts as high as 25 mph.

    Low: 41 °F

    Mostly Clear
    then Partly
    Cloudy and
    Breezy

  • Monday

    Monday: Mostly cloudy, with a high near 61. Breezy, with a west northwest wind 16 to 20 mph, with gusts as high as 30 mph.

    High: 61 °F

    Mostly Cloudy
    and Breezy

  • Monday Night

    Monday Night: A 20 percent chance of rain before 11pm.  Cloudy, with a low around 40. West northwest wind 9 to 14 mph becoming light and variable  in the evening. Winds could gust as high as 22 mph.

    Low: 40 °F

    Slight Chance
    Rain then
    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 64. Light and variable wind becoming southeast around 6 mph in the afternoon.

    High: 64 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: A 30 percent chance of rain, mainly after 11pm.  Mostly cloudy, with a low around 45. Light and variable wind becoming northeast around 6 mph after midnight.

    Low: 45 °F

    Chance Rain

  • Wednesday

    Wednesday: A 50 percent chance of rain.  Mostly cloudy, with a high near 65. Northeast wind around 5 mph becoming light and variable  in the morning.  New precipitation amounts of less than a tenth of an inch possible.

    High: 65 °F

    Chance Rain

  • Wednesday Night

    Wednesday Night: A 40 percent chance of rain.  Mostly cloudy, with a low around 43.

    Low: 43 °F

    Chance Rain

  • Thursday

    Thursday: A chance of rain.  Partly sunny, with a high near 63.

    High: 63 °F

    Chance Rain

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 40.

    Low: 40 °F

    Partly Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around 41. Breezy, with a north northwest wind 11 to 16 mph, with gusts as high as 25 mph.
Monday
Mostly cloudy, with a high near 61. Breezy, with a west northwest wind 16 to 20 mph, with gusts as high as 30 mph.
Monday Night
A 20 percent chance of rain before 11pm. Cloudy, with a low around 40. West northwest wind 9 to 14 mph becoming light and variable in the evening. Winds could gust as high as 22 mph.
Tuesday
Mostly cloudy, with a high near 64. Light and variable wind becoming southeast around 6 mph in the afternoon.
Tuesday Night
A 30 percent chance of rain, mainly after 11pm. Mostly cloudy, with a low around 45. Light and variable wind becoming northeast around 6 mph after midnight.
Wednesday
A 50 percent chance of rain. Mostly cloudy, with a high near 65. Northeast wind around 5 mph becoming light and variable in the morning. New precipitation amounts of less than a tenth of an inch possible.
Wednesday Night
A 40 percent chance of rain. Mostly cloudy, with a low around 43.
Thursday
A chance of rain. Partly sunny, with a high near 63.
Thursday Night
Partly cloudy, with a low around 40.
Friday
Sunny, with a high near 66.
Friday Night
Mostly clear, with a low around 41.
Saturday
Sunny, with a high near 65.
Saturday Night
A chance of rain. Partly cloudy, with a low around 41.
Sunday
A chance of rain. Partly sunny, with a high near 61.
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ABOUT THIS FORECAST

 
Point Forecast:
10 Miles SE Potter Valley CA
 39.22°N 123°W (Elev. 2201 ft)
2:10 pm PDT Oct 18, 2026
3pm PDT Oct 18, 2026-6pm PDT Oct 25, 2026
 
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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