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

Late January Extreme Cold; Watching East Coast Storm Threat This Weekend

The next blast of Arctic air surges south down the Plains, across the Great Lakes and through the Southeast and East Friday through Saturday. This could be longest duration of cold in several decades. Forecast models are being closely monitored for potential of another significant winter storm to impact the eastern United States this coming weekend. Confidence in coastal impacts has increased. Read More >

Current conditions at

LYONS VALLEY (COWC1)

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

NA

40°F

4°C

Humidity 97%
Wind Speed NE 5 MPH
Barometer NA
Dewpoint 39°F (4°C)
Visibility NA
Wind Chill36°F (2°C)
Last update 28 Jan 07:01 AM PST
Extended Forecast for

4 Miles NNW Hopland CA

  • Today

    Today: Patchy fog between 10am and 1pm. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 61. Calm wind.

    High: 61 °F

    Patchy Fog

  • Tonight

    Tonight: Partly cloudy, with a low around 39. Northwest wind around 7 mph.

    Low: 39 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 66. North northwest wind around 5 mph becoming calm in the morning.

    High: 66 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 42. Calm wind.

    Low: 42 °F

    Mostly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 68. Light east southeast wind.

    High: 68 °F

    Partly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 42. Calm wind becoming east around 5 mph after midnight.

    Low: 42 °F

    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 68.

    High: 68 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: A slight chance of rain after 10pm. Mostly cloudy, with a low around 44.

    Low: 44 °F

    Slight Chance
    Rain

  • Sunday

    Sunday: A chance of rain. Mostly cloudy, with a high near 62.

    High: 62 °F

    Chance Rain

Detailed Forecast

Today
Patchy fog between 10am and 1pm. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 61. Calm wind.
Tonight
Partly cloudy, with a low around 39. Northwest wind around 7 mph.
Thursday
Mostly sunny, with a high near 66. North northwest wind around 5 mph becoming calm in the morning.
Thursday Night
Mostly cloudy, with a low around 42. Calm wind.
Friday
Partly sunny, with a high near 68. Light east southeast wind.
Friday Night
Mostly cloudy, with a low around 42. Calm wind becoming east around 5 mph after midnight.
Saturday
Partly sunny, with a high near 68.
Saturday Night
A slight chance of rain after 10pm. Mostly cloudy, with a low around 44.
Sunday
A chance of rain. Mostly cloudy, with a high near 62.
Sunday Night
A chance of rain before 10pm. Mostly cloudy, with a low around 42.
Monday
Mostly sunny, with a high near 65.
Monday Night
Mostly clear, with a low around 40.
Tuesday
Sunny, with a high near 70.
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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:
1:10 am PST Jan 28, 2026
Forecast Valid:
7am PST Jan 28, 2026-6pm PST Feb 3, 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