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

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

82°F

28°C

Humidity 40%
Wind Speed SE 5 MPH
Barometer NA
Dewpoint 55°F (13°C)
Visibility NA
Heat Index81°F (27°C)
Last update 13 Jul 08:01 AM PDT
Extended Forecast for

Hopland CA

Heat Advisory July 13, 08:54am until July 13, 11:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory July 13, 08:54am until July 13, 11:00pm

    NOW until 11:00pm Sun

    Heat Advisory

  • Today

    High: 98 °F

    Sunny

  • Tonight

    Tonight: Clear, with a low around 55. South southeast wind 3 to 8 mph.

    Low: 55 °F

    Clear

  • Monday

    Monday: Sunny and hot, with a high near 99. Light south southeast wind increasing to 5 to 10 mph in the afternoon.

    High: 99 °F

    Hot

  • Monday Night

    Monday Night: Mostly clear, with a low around 54. West wind 6 to 9 mph becoming southeast in the evening.

    Low: 54 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 91. Calm wind becoming south southwest 5 to 7 mph in the afternoon.

    High: 91 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Patchy fog after 5am. Otherwise, mostly clear, with a low around 53. Southwest wind 5 to 8 mph becoming calm in the evening.

    Low: 53 °F

    Mostly Clear
    then Patchy
    Fog

  • Wednesday

    Wednesday: Patchy fog before 8am. Otherwise, sunny, with a high near 88.

    High: 88 °F

    Patchy Fog
    then Sunny

  • Wednesday Night

    Wednesday Night: Patchy fog after 5am. Otherwise, mostly clear, with a low around 52.

    Low: 52 °F

    Mostly Clear
    then Patchy
    Fog

Detailed Forecast

Today
Sunny, with a high near 98. South southeast wind 5 to 14 mph.
Tonight
Clear, with a low around 55. South southeast wind 3 to 8 mph.
Monday
Sunny and hot, with a high near 99. Light south southeast wind increasing to 5 to 10 mph in the afternoon.
Monday Night
Mostly clear, with a low around 54. West wind 6 to 9 mph becoming southeast in the evening.
Tuesday
Sunny, with a high near 91. Calm wind becoming south southwest 5 to 7 mph in the afternoon.
Tuesday Night
Patchy fog after 5am. Otherwise, mostly clear, with a low around 53. Southwest wind 5 to 8 mph becoming calm in the evening.
Wednesday
Patchy fog before 8am. Otherwise, sunny, with a high near 88.
Wednesday Night
Patchy fog after 5am. Otherwise, mostly clear, with a low around 52.
Thursday
Patchy fog before 8am. Otherwise, sunny, with a high near 88.
Thursday Night
Patchy fog after 5am. Otherwise, mostly clear, with a low around 51.
Friday
Patchy fog. Otherwise, sunny, with a high near 91.
Friday Night
Mostly clear, with a low around 54.
Saturday
Sunny, with a high near 94.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Hopland CA
 38.97°N 123.1°W (Elev. 577 ft)
Last Update:
10:43 pm PDT Jul 12, 2025
Forecast Valid:
8am PDT Jul 13, 2025-6pm PDT Jul 19, 2025
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

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Chance of Precipitation