Extreme Heat in the Southwest; Severe Weather in the Northern Plains; Heavy Rain in the East

Extreme heat continues across the Southwest as temperatures may top 120 degrees. The heat may expand across the West and south-central U.S. into the middle of the month. Severe thunderstorms capable of severe wind gusts and large hail will be the primary hazards today across the northern Plains into the upper Midwest. Rainfall could be locally heavy across the Eastern U.S. today. Read More >

Current conditions at

LYONS VALLEY (COWC1)

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

NA

79°F

26°C

Humidity 27%
Wind Speed ESE 8 MPH
Barometer NA
Dewpoint 42°F (6°C)
Visibility NA
Heat Index78°F (26°C)
Last update 03 Aug 04:01 AM PDT
Extended Forecast for

3 Miles N Lakeport CA

Heat Advisory August 3, 11:00am until August 4, 11:00pm
Click here for hazard details and duration
Heat Advisory
  • Today

    Today: Sunny and hot, with a high near 102. Calm wind becoming south southeast 5 to 9 mph in the afternoon.

    High: 102 °F

    Hot

  • Tonight

    Tonight: Mostly clear, with a low around 67. West wind 5 to 10 mph becoming light west southwest  in the evening.

    Low: 67 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny and hot, with a high near 101. Calm wind becoming south southwest 5 to 9 mph in the afternoon.

    High: 101 °F

    Hot

  • Tuesday Night

    Tuesday Night: Clear, with a low around 65. South southwest wind 8 to 13 mph becoming light and variable  in the evening. Winds could gust as high as 18 mph.

    Low: 65 °F

    Clear

  • Wednesday

    Wednesday: Sunny and hot, with a high near 99. Calm wind becoming south around 6 mph in the afternoon.

    High: 99 °F

    Hot

  • Wednesday Night

    Wednesday Night: Clear, with a low around 62. Southwest wind 5 to 8 mph becoming calm  in the evening.

    Low: 62 °F

    Clear

  • Thursday

    Thursday: Sunny and hot, with a high near 100.

    High: 100 °F

    Hot

  • Thursday Night

    Thursday Night: Clear, with a low around 64.

    Low: 64 °F

    Clear

  • Friday

    Friday: Sunny and hot, with a high near 102.

    High: 102 °F

    Hot

Detailed Forecast

Today
Sunny and hot, with a high near 102. Calm wind becoming south southeast 5 to 9 mph in the afternoon.
Tonight
Mostly clear, with a low around 67. West wind 5 to 10 mph becoming light west southwest in the evening.
Tuesday
Sunny and hot, with a high near 101. Calm wind becoming south southwest 5 to 9 mph in the afternoon.
Tuesday Night
Clear, with a low around 65. South southwest wind 8 to 13 mph becoming light and variable in the evening. Winds could gust as high as 18 mph.
Wednesday
Sunny and hot, with a high near 99. Calm wind becoming south around 6 mph in the afternoon.
Wednesday Night
Clear, with a low around 62. Southwest wind 5 to 8 mph becoming calm in the evening.
Thursday
Sunny and hot, with a high near 100.
Thursday Night
Clear, with a low around 64.
Friday
Sunny and hot, with a high near 102.
Friday Night
Mostly clear, with a low around 66.
Saturday
Sunny, with a high near 98.
Saturday Night
Clear, with a low around 62.
Sunday
Sunny, with a high near 94.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles N Lakeport CA
 39.1°N 122.9°W (Elev. 1375 ft)
2:16 am PDT Aug 3, 2026
4am PDT Aug 3, 2026-6pm PDT Aug 9, 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