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

112°F

44°C

Humidity 8%
Wind Speed SW 2 MPH
Barometer NA
Dewpoint 40°F (4°C)
Visibility NA
Heat Index105°F (41°C)
Last update 19 Aug 04:00 PM PDT
Extended Forecast for

9 Miles WNW Boulder City NV

Extreme Heat Warning August 19, 04:20pm until August 21, 08:00pm
Click here for hazard details and duration
Extreme Heat Warning
  •  
    Extreme Heat Warning August 19, 04:20pm until August 21, 08:00pm

    NOW until 8:00pm Fri

    Extreme Heat Warning

  • Tonight

    Low: 89 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny and hot, with a high near 109. Calm wind becoming south 5 to 8 mph in the afternoon. Winds could gust as high as 18 mph.

    High: 109 °F

    Hot

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 90. South wind 5 to 10 mph becoming light south southwest  after midnight.

    Low: 90 °F

    Partly Cloudy

  • Friday

    Friday: A 30 percent chance of showers and thunderstorms after 11am.  Partly sunny and hot, with a high near 106. South wind 3 to 7 mph.

    High: 106 °F

    Chance
    Showers

  • Friday Night

    Friday Night: Partly cloudy, with a low around 86. Southeast wind around 6 mph becoming calm  in the evening.

    Low: 86 °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 87.

    Low: 87 °F

    Partly Cloudy

  • Sunday

    Sunday: A slight chance of showers and thunderstorms after 11am.  Mostly sunny and hot, with a high near 105.

    High: 105 °F

    Slight Chance
    T-storms

Detailed Forecast

Tonight
Mostly clear, with a low around 89. Southwest wind 6 to 11 mph becoming light south southwest after midnight. Winds could gust as high as 18 mph.
Thursday
Sunny and hot, with a high near 109. Calm wind becoming south 5 to 8 mph in the afternoon. Winds could gust as high as 18 mph.
Thursday Night
Partly cloudy, with a low around 90. South wind 5 to 10 mph becoming light south southwest after midnight.
Friday
A 30 percent chance of showers and thunderstorms after 11am. Partly sunny and hot, with a high near 106. South wind 3 to 7 mph.
Friday Night
Partly cloudy, with a low around 86. Southeast wind around 6 mph becoming calm in the evening.
Saturday
Sunny and hot, with a high near 107.
Saturday Night
Partly cloudy, with a low around 87.
Sunday
A slight chance of showers and thunderstorms after 11am. Mostly sunny and hot, with a high near 105.
Sunday Night
A slight chance of showers and thunderstorms before 11pm. Partly cloudy, with a low around 86.
Monday
A slight chance of showers and thunderstorms after 11am. Sunny, with a high near 102.
Monday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 83.
Tuesday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 102.
Tuesday Night
Mostly clear, with a low around 84.
Wednesday
A slight chance of showers and thunderstorms. Sunny, with a high near 104.
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ABOUT THIS FORECAST

 
Point Forecast:
9 Miles WNW Boulder City NV
 36.03°N 114.99°W (Elev. 1978 ft)
11:33 am PDT Aug 19, 2026
4pm 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