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

Excessive Rainfall Possible This Weekend; October Heat Wave in California

A slow moving front will be the focus area for heavy to excessive rainfall and a threat for flash/urban flooding across the northern Gulf Coast and Southeast U.S. through this weekend. Abnormally hot, potentially record-breaking, temperatures will impact southern California and stretch north toward the Bay Area and Central Valley into next week. Read More >

Hazardous Weather Conditions

Current conditions at

LYONS VALLEY (COWC1)

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

NA

79°F

26°C

Humidity 20%
Wind Speed NW 12 MPH
Barometer NA
Dewpoint 35°F (2°C)
Visibility NA
Heat Index78°F (26°C)
Last update 03 Oct 09:01 PM PDT
Extended Forecast for

Lakeport CA

Heat Advisory October 3, 10:06pm until October 4, 11:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory October 3, 10:06pm until October 4, 11:00pm

    NOW until 11:00pm Sun

    Heat Advisory

  • Tonight

    Low: 63 °F

    Increasing
    Clouds

  • Sunday

    Sunday: Mostly cloudy, with a high near 94. Calm wind.

    High: 94 °F

    Mostly Cloudy

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 63. Calm wind.

    Low: 63 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 98. Calm wind becoming west southwest around 6 mph in the afternoon.

    High: 98 °F

    Sunny

  • Monday Night

    Monday Night: Clear, with a low around 64. West wind 5 to 9 mph becoming calm in the evening.

    Low: 64 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 97. Calm wind becoming west southwest around 6 mph in the afternoon.

    High: 97 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Clear, with a low around 63.

    Low: 63 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 98.

    High: 98 °F

    Sunny

Detailed Forecast

Tonight
Increasing clouds, with a low around 63. Calm wind.
Sunday
Mostly cloudy, with a high near 94. Calm wind.
Sunday Night
Mostly clear, with a low around 63. Calm wind.
Monday
Sunny, with a high near 98. Calm wind becoming west southwest around 6 mph in the afternoon.
Monday Night
Clear, with a low around 64. West wind 5 to 9 mph becoming calm in the evening.
Tuesday
Sunny, with a high near 97. Calm wind becoming west southwest around 6 mph in the afternoon.
Tuesday Night
Clear, with a low around 63.
Wednesday
Sunny, with a high near 98.
Wednesday Night
Clear, with a low around 61.
Thursday
Sunny, with a high near 96.
Thursday Night
Mostly clear, with a low around 60.
Friday
Sunny, with a high near 86.
Friday Night
Mostly clear, with a low around 52.
Saturday
Sunny, with a high near 77.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Lakeport CA
 39.05°N 122.92°W (Elev. 1388 ft)
Last Update:
2:10 pm PDT Oct 3, 2026
Forecast Valid:
10pm PDT Oct 3, 2026-6pm PDT Oct 10, 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