Heat Persists in the South Central U.S. and Southwest; Heavy rains in the Desert Southwest and Central Plains

Sweltering heat remains across the South-Central Plains, Lower/Middle Mississippi Valley, and the Southwest this week with limited nighttime relief. Thunderstorms will bring heavy rainfall leading to localized flash flooding in portions of the Desert Southwest and central Plains. Isolated strong to severe thunderstorms are possible across portions of the central Plains into the Northeast. Read More >

Current conditions at

Livermore, Livermore Municipal Airport (KLVK)

Lat: 37.69278°NLon: 121.81444°WElev: 397.0ft.

Clear

91°F

33°C

Humidity 21%
Wind Speed NE 6 MPH
Barometer 29.93 in (1013.55 mb)
Dewpoint 47°F (8°C)
Visibility 10.00 mi
Heat Index87°F (31°C)
Last update 08 Sep 07:00 PM PDT
Extended Forecast for

Livermore CA

Heat Advisory until September 10, 10:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory until September 10, 10:00pm

    NOW until 10:00pm Thu

    Heat Advisory

  • Tonight

    Low: 70 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny and hot, with a high near 100. Calm wind becoming west northwest 5 to 7 mph in the afternoon.

    High: 100 °F

    Hot

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 73. West wind around 5 mph becoming calm  in the evening.

    Low: 73 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny and hot, with a high near 96. Calm wind becoming west 5 to 9 mph in the afternoon. Winds could gust as high as 21 mph.

    High: 96 °F

    Hot

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 62. Southwest wind 7 to 10 mph, with gusts as high as 21 mph.

    Low: 62 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 87.

    High: 87 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 58.

    Low: 58 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 78.

    High: 78 °F

    Sunny

Detailed Forecast

Tonight
Partly cloudy, with a low around 70. Calm wind.
Wednesday
Sunny and hot, with a high near 100. Calm wind becoming west northwest 5 to 7 mph in the afternoon.
Wednesday Night
Mostly clear, with a low around 73. West wind around 5 mph becoming calm in the evening.
Thursday
Sunny and hot, with a high near 96. Calm wind becoming west 5 to 9 mph in the afternoon. Winds could gust as high as 21 mph.
Thursday Night
Mostly clear, with a low around 62. Southwest wind 7 to 10 mph, with gusts as high as 21 mph.
Friday
Sunny, with a high near 87.
Friday Night
Mostly clear, with a low around 58.
Saturday
Sunny, with a high near 78.
Saturday Night
Mostly clear, with a low around 56.
Sunday
Sunny, with a high near 82.
Sunday Night
Clear, with a low around 56.
Monday
Sunny, with a high near 83.
Monday Night
Mostly clear, with a low around 56.
Tuesday
Sunny, with a high near 80.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
Livermore CA
 37.69°N 121.79°W (Elev. 453 ft)
1:25 pm PDT Sep 8, 2026
7pm PDT Sep 8, 2026-6pm PDT Sep 15, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database