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

Henderson (CMP10)

Lat: 36.0075°NLon: 114.96556°WElev: 2190.0ft.

NA

105°F

41°C

Humidity 9%
Wind Speed WSW 4 MPH
Barometer NA
Dewpoint 37°F (3°C)
Visibility NA
Heat Index99°F (37°C)
Last update 19 Aug 07:20 PM PDT
Extended Forecast for

10 Miles NNW Boulder City NV

Extreme Heat Warning August 19, 07:47pm until August 21, 08:00pm
Click here for hazard details and duration
Extreme Heat Warning
  •  
    Extreme Heat Warning August 19, 07:47pm until August 21, 08:00pm

    NOW until 8:00pm Fri

    Extreme Heat Warning

  • Tonight

    Low: 87 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny and hot, with a high near 109. Calm wind becoming south southeast 5 to 8 mph in the afternoon.

    High: 109 °F

    Hot

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 88. South wind 5 to 10 mph becoming light  after midnight.

    Low: 88 °F

    Partly Cloudy

  • Friday

    Friday: A 30 percent chance of showers and thunderstorms after 11am.  Partly sunny and hot, with a high near 106. Calm wind becoming south southeast 5 to 7 mph in the afternoon.

    High: 106 °F

    Chance
    Showers

  • Friday Night

    Friday Night: Partly cloudy, with a low around 84. East southeast wind 5 to 7 mph becoming calm  in the evening.

    Low: 84 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny and hot, with a high near 107.

    High: 107 °F

    Hot

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 85.

    Low: 85 °F

    Partly Cloudy

  • Sunday

    Sunday: A slight chance of showers and thunderstorms after 11am.  Sunny and hot, with a high near 106.

    High: 106 °F

    Slight Chance
    T-storms

Detailed Forecast

Tonight
Mostly clear, with a low around 87. Southwest wind 6 to 11 mph becoming light south after midnight.
Thursday
Sunny and hot, with a high near 109. Calm wind becoming south southeast 5 to 8 mph in the afternoon.
Thursday Night
Partly cloudy, with a low around 88. South wind 5 to 10 mph becoming light after midnight.
Friday
A 30 percent chance of showers and thunderstorms after 11am. Partly sunny and hot, with a high near 106. Calm wind becoming south southeast 5 to 7 mph in the afternoon.
Friday Night
Partly cloudy, with a low around 84. East southeast wind 5 to 7 mph becoming calm in the evening.
Saturday
Sunny and hot, with a high near 107.
Saturday Night
Partly cloudy, with a low around 85.
Sunday
A slight chance of showers and thunderstorms after 11am. Sunny and hot, with a high near 106.
Sunday Night
A slight chance of showers and thunderstorms before 11pm. Partly cloudy, with a low around 83.
Monday
Sunny, with a high near 103.
Monday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 81.
Tuesday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 103.
Tuesday Night
Mostly clear, with a low around 82.
Wednesday
A slight chance of showers and thunderstorms. Sunny and hot, with a high near 105.
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ABOUT THIS FORECAST

 
Point Forecast:
10 Miles NNW Boulder City NV
 36.08°N 114.92°W (Elev. 1778 ft)
11:33 am PDT Aug 19, 2026
7pm PDT Aug 19, 2026-6pm PDT Aug 26, 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