Severe Thunderstorms and Excessive Rainfall in the Central U.S.; Heat Building in the Western U.S.

A cold front pressing east across the central U.S. will be the focus for areas of strong to severe thunderstorms and excessive rainfall through this weekend. Strong to severe thunderstorms my bring damaging winds, hail, and a few tornadoes while excessive rainfall may lead to areas of flooding. Heat will build across the western U.S. with heat-related watches, warnings, and advisories issued. Read More >

Hazardous Weather Conditions

Current conditions at

LYONS VALLEY (COWC1)

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

NA

86°F

30°C

Humidity 39%
Wind Speed W 18 MPH
Barometer NA
Dewpoint 58°F (14°C)
Visibility NA
Heat Index85°F (29°C)
Last update 12 Jul 06:01 PM PDT
Extended Forecast for

4 Miles NNW Hopland CA

Heat Advisory July 12, 06:27pm until July 13, 11:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory July 12, 06:27pm until July 13, 11:00pm

    NOW until 11:00pm Sun

    Heat Advisory

  • Tonight

    Low: 59 °F

    Clear

  • Sunday

    Sunday: Sunny and hot, with a high near 100. Calm wind becoming south southeast 5 to 7 mph in the afternoon.

    High: 100 °F

    Hot

  • Sunday Night

    Sunday Night: Clear, with a low around 61. West southwest wind around 6 mph becoming calm  in the evening.

    Low: 61 °F

    Clear

  • Monday

    Monday: Sunny and hot, with a high near 101. Calm wind becoming southwest around 6 mph in the afternoon.

    High: 101 °F

    Hot

  • Monday Night

    Monday Night: Mostly clear, with a low around 60. West wind 5 to 8 mph becoming calm  in the evening.

    Low: 60 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 94. Calm wind becoming south southwest around 6 mph in the afternoon.

    High: 94 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 56.

    Low: 56 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 91.

    High: 91 °F

    Sunny

Detailed Forecast

Tonight
Clear, with a low around 59. South wind 3 to 6 mph.
Sunday
Sunny and hot, with a high near 100. Calm wind becoming south southeast 5 to 7 mph in the afternoon.
Sunday Night
Clear, with a low around 61. West southwest wind around 6 mph becoming calm in the evening.
Monday
Sunny and hot, with a high near 101. Calm wind becoming southwest around 6 mph in the afternoon.
Monday Night
Mostly clear, with a low around 60. West wind 5 to 8 mph becoming calm in the evening.
Tuesday
Sunny, with a high near 94. Calm wind becoming south southwest around 6 mph in the afternoon.
Tuesday Night
Mostly clear, with a low around 56.
Wednesday
Sunny, with a high near 91.
Wednesday Night
Mostly clear, with a low around 55.
Thursday
Sunny, with a high near 90.
Thursday Night
Mostly clear, with a low around 54.
Friday
Sunny, with a high near 91.
Friday Night
Mostly clear, with a low around 56.
Saturday
Sunny, with a high near 94.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles NNW Hopland CA
 39.03°N 123.15°W (Elev. 597 ft)
5:58 pm PDT Jul 12, 2025
6pm PDT Jul 12, 2025-6pm PDT Jul 19, 2025
 
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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