Dangerous Heat in the Southwest; Severe Thunderstorms and Heavy Rain in the Northeast and Mid-Atlantic

Dangerous heat will persist across the Southwest U.S. through Friday with daytime highs of 110-115°F. Heat across the southern Plains will briefly ease to near-normal by late week. Strong to severe thunderstorms may produce damaging wind, hail, a tornado or two, heavy rain and flash flooding across parts of the Mid-Atlantic and Northeast. Heavy rainfall threat continues across the Gulf Coast. Read More >

Current conditions at

LYONS VALLEY (COWC1)

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

NA

73°F

23°C

Humidity 34%
Wind Speed NW 13 MPH
Barometer NA
Dewpoint 43°F (6°C)
Visibility NA
Last update 27 Aug 09:01 AM PDT
Extended Forecast for

Lakeport CA

  • Today

    Today: Sunny, with a high near 89. Light west northwest wind increasing to 5 to 10 mph in the afternoon.

    High: 89 °F

    Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 59. Northwest wind 5 to 10 mph.

    Low: 59 °F

    Mostly Cloudy

  • Friday

    Friday: A 20 percent chance of showers before 11am.  Mostly cloudy, with a high near 84. Calm wind becoming southwest 5 to 9 mph in the afternoon.

    High: 84 °F

    Slight Chance
    Showers then
    Partly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 54. West wind 5 to 7 mph becoming calm  in the evening.

    Low: 54 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 83. Calm wind becoming west 5 to 8 mph in the afternoon.

    High: 83 °F

    Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 53. West wind 6 to 11 mph becoming light north northwest  after midnight. Winds could gust as high as 22 mph.

    Low: 53 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 86.

    High: 86 °F

    Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 53.

    Low: 53 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 79.

    High: 79 °F

    Sunny

Detailed Forecast

Today
Sunny, with a high near 89. Light west northwest wind increasing to 5 to 10 mph in the afternoon.
Tonight
Mostly cloudy, with a low around 59. Northwest wind 5 to 10 mph.
Friday
A 20 percent chance of showers before 11am. Mostly cloudy, with a high near 84. Calm wind becoming southwest 5 to 9 mph in the afternoon.
Friday Night
Mostly clear, with a low around 54. West wind 5 to 7 mph becoming calm in the evening.
Saturday
Sunny, with a high near 83. Calm wind becoming west 5 to 8 mph in the afternoon.
Saturday Night
Clear, with a low around 53. West wind 6 to 11 mph becoming light north northwest after midnight. Winds could gust as high as 22 mph.
Sunday
Sunny, with a high near 86.
Sunday Night
Clear, with a low around 53.
Monday
Sunny, with a high near 79.
Monday Night
Mostly clear, with a low around 48.
Tuesday
Sunny, with a high near 77.
Tuesday Night
Mostly clear, with a low around 50.
Wednesday
Sunny, with a high near 80.
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ABOUT THIS FORECAST

 
Point Forecast:
Lakeport CA
 39.05°N 122.92°W (Elev. 1388 ft)
6:52 am PDT Aug 27, 2026
10am PDT Aug 27, 2026-6pm PDT Sep 2, 2026
 
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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