Severe Thunderstorms in the Midwest and Arizona; Heat Continues in the Southeast and Southwest

Thunderstorms, some severe, may lead to scattered instances of flash flooding across the Midwest and Ohio Valley and southern Arizona. The threat will shift to the Mid-Atlantic coast on Thursday. Dangerous heat persists in the South and Southeast while building into the Southwest. Overnight lows will be so warm that little-to-no relief from the scorching daytime highs will be available. Read More >

Current conditions at

Boulder City Municipal Airport (KBVU)

Lat: 35.9475°NLon: 114.8611°WElev: 2200.0ft.

Clear

97°F

36°C

Humidity 14%
Wind Speed SSE 5 MPH
Barometer 29.86 in (1011.18 mb)
Dewpoint 41°F (5°C)
Visibility 10.00 mi
Heat Index92°F (33°C)
Last update 19 Aug 09:35 PM PDT
Extended Forecast for

Lake Mead NV

Extreme Heat Warning August 19, 09:49pm until August 21, 08:00pm
Click here for hazard details and duration
Extreme Heat Warning
  •  
    Extreme Heat Warning August 19, 09:49pm until August 21, 08:00pm

    NOW until 8:00pm Fri

    Extreme Heat Warning

  • Tonight

    Low: 87 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 100. South wind 5 to 7 mph.

    High: 100 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 86. South wind 3 to 7 mph.

    Low: 86 °F

    Partly Cloudy

  • Friday

    Friday: A 10 percent chance of showers and thunderstorms after 5pm.  Mostly sunny, with a high near 98. Light southeast wind.

    High: 98 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Friday Night

    Friday Night: A 10 percent chance of showers and thunderstorms before 8pm.  Mostly clear, with a low around 85. Light southeast wind.

    Low: 85 °F

    Slight Chance
    T-storms then
    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 99.

    High: 99 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 86.

    Low: 86 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 99.

    High: 99 °F

    Sunny

Detailed Forecast

Tonight
Clear, with a low around 87. South wind 5 to 9 mph.
Thursday
Sunny, with a high near 100. South wind 5 to 7 mph.
Thursday Night
Partly cloudy, with a low around 86. South wind 3 to 7 mph.
Friday
A 10 percent chance of showers and thunderstorms after 5pm. Mostly sunny, with a high near 98. Light southeast wind.
Friday Night
A 10 percent chance of showers and thunderstorms before 8pm. Mostly clear, with a low around 85. Light southeast wind.
Saturday
Sunny, with a high near 99.
Saturday Night
Mostly clear, with a low around 86.
Sunday
Sunny, with a high near 99.
Sunday Night
Partly cloudy, with a low around 85.
Monday
Sunny, with a high near 98.
Monday Night
Mostly clear, with a low around 84.
Tuesday
Sunny, with a high near 98.
Tuesday Night
Mostly clear, with a low around 85.
Wednesday
Sunny, with a high near 98.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
Lake Mead NV
 36.1°N 114.75°W (Elev. 1079 ft)
9:38 pm PDT Aug 19, 2026
9pm PDT Aug 19, 2026-6pm PDT Aug 26, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database