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

76°F

24°C

Humidity 48%
Wind Speed W 14 MPH
Barometer NA
Dewpoint 55°F (13°C)
Visibility NA
Heat Index78°F (26°C)
Last update 12 Jul 08:01 PM PDT
Extended Forecast for

9 Miles ESE Calpella CA

Heat Advisory July 12, 08:18pm until July 13, 11:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory July 12, 08:18pm until July 13, 11:00pm

    NOW until 11:00pm Sun

    Heat Advisory

  • Tonight

    Low: 66 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 96. Calm wind becoming west southwest 5 to 7 mph in the afternoon.

    High: 96 °F

    Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 68. West wind 5 to 8 mph becoming calm  after midnight. Winds could gust as high as 18 mph.

    Low: 68 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 97. Calm wind becoming west southwest 5 to 8 mph in the afternoon.

    High: 97 °F

    Sunny

  • Monday Night

    Monday Night: Clear, with a low around 66. West wind 5 to 9 mph becoming light and variable  after midnight. Winds could gust as high as 22 mph.

    Low: 66 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 90. Light and variable wind becoming south southwest 5 to 8 mph in the afternoon.

    High: 90 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 60.

    Low: 60 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 86.

    High: 86 °F

    Sunny

Detailed Forecast

Tonight
Clear, with a low around 66. West northwest wind 5 to 7 mph.
Sunday
Sunny, with a high near 96. Calm wind becoming west southwest 5 to 7 mph in the afternoon.
Sunday Night
Clear, with a low around 68. West wind 5 to 8 mph becoming calm after midnight. Winds could gust as high as 18 mph.
Monday
Sunny, with a high near 97. Calm wind becoming west southwest 5 to 8 mph in the afternoon.
Monday Night
Clear, with a low around 66. West wind 5 to 9 mph becoming light and variable after midnight. Winds could gust as high as 22 mph.
Tuesday
Sunny, with a high near 90. Light and variable wind becoming south southwest 5 to 8 mph in the afternoon.
Tuesday Night
Mostly clear, with a low around 60.
Wednesday
Sunny, with a high near 86.
Wednesday Night
Clear, with a low around 58.
Thursday
Sunny, with a high near 85.
Thursday Night
Mostly clear, with a low around 58.
Friday
Sunny, with a high near 86.
Friday Night
Clear, with a low around 60.
Saturday
Sunny, with a high near 89.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
9 Miles ESE Calpella CA
 39.19°N 123.05°W (Elev. 2031 ft)
5:58 pm PDT Jul 12, 2025
8pm 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