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

Storm Systems to Impact the Central and Eastern U.S. Through the Weekend

Two storm systems will track through the central and eastern U.S. today through this weekend with areas of gusty winds, rain and heavy snow. Severe thunderstorms and heavy to excessive rainfall is forecast today from the Lower Mississippi River Valley to the Tennessee Valley. Damaging winds, a few tornadoes, and areas of flooding are possible. Read More >

Hazardous Weather Conditions

Current conditions at

LYONS VALLEY (COWC1)

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

NA

49°F

9°C

Humidity 17%
Wind Speed NE 8 MPH
Barometer NA
Dewpoint 6°F (-14°C)
Visibility NA
Wind Chill46°F (8°C)
Last update 09 Jan 08:01 AM PST
Extended Forecast for

5 Miles SE Hopland CA

Cold Weather Advisory until January 9, 09:00am
Click here for hazard details and duration
...
  •  
    Cold Weather Advisory until January 9, 09:00am

    NOW until 9:00am Fri

    Cold Weather Advisory

  • Today

    High: 58 °F

    Sunny

  • Tonight

    Tonight: Widespread haze after 4am. Partly cloudy, with a low around 36. South southeast wind around 5 mph becoming calm in the evening.

    Low: 36 °F

    Mostly Clear
    then Haze

  • Saturday

    Saturday: Widespread haze before 10am. Mostly sunny, with a high near 58. South wind around 5 mph becoming calm.

    High: 58 °F

    Haze then
    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 39. Light and variable wind.

    Low: 39 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 62. Light and variable wind.

    High: 62 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Widespread haze before 1am. Mostly clear, with a low around 38. Light north wind.

    Low: 38 °F

    Haze

  • Monday

    Monday: Sunny, with a high near 65.

    High: 65 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 44.

    Low: 44 °F

    Partly Cloudy

Detailed Forecast

Today
Sunny, with a high near 58. North northwest wind 5 to 9 mph becoming calm in the afternoon.
Tonight
Widespread haze after 4am. Partly cloudy, with a low around 36. South southeast wind around 5 mph becoming calm in the evening.
Saturday
Widespread haze before 10am. Mostly sunny, with a high near 58. South wind around 5 mph becoming calm.
Saturday Night
Mostly cloudy, with a low around 39. Light and variable wind.
Sunday
Mostly sunny, with a high near 62. Light and variable wind.
Sunday Night
Widespread haze before 1am. Mostly clear, with a low around 38. Light north wind.
Monday
Sunny, with a high near 65.
Monday Night
Partly cloudy, with a low around 44.
Tuesday
Sunny, with a high near 70.
Tuesday Night
Mostly clear, with a low around 47.
Wednesday
Sunny, with a high near 71.
Wednesday Night
Mostly clear, with a low around 47.
Thursday
Sunny, with a high near 72.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
5 Miles SE Hopland CA
 38.91°N 123.06°W (Elev. 889 ft)
Last Update:
1:10 am PST Jan 9, 2026
Forecast Valid:
8am PST Jan 9, 2026-6pm PST Jan 15, 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