Thunderstorms and Heavy Rainfall in the Plains; Hazardous Heat in the South and Southeast

Severe thunderstorms will be possible across the northern/central Plains through Tuesday afternoon and from the central Plains to the Mid-Mississippi Valley Tuesday evening through Wednesday morning. Storms may produce large hail and damaging wind gusts, and heavy rainfall may lead to scattered instances of flash flooding. Meanwhile, hazardous heat persists across the South and Southeast. Read More >

Current conditions at

Boulder City Municipal Airport (KBVU)

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

Clear

100°F

38°C

Humidity 15%
Wind Speed SSE 10 MPH
Barometer 29.86 in (1011.18 mb)
Dewpoint 45°F (7°C)
Visibility 10.00 mi
Heat Index96°F (36°C)
Last update 17 Aug 07:55 PM PDT
Extended Forecast for

5 Miles S Lake Mead NV

Extreme Heat Warning August 18, 10:00am until August 21, 08:00pm
Click here for hazard details and duration
Extreme Heat Warning
  • Tonight

    Tonight: Partly cloudy, with a low around 89. South wind 5 to 8 mph becoming calm  in the evening.

    Low: 89 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny and hot, with a high near 107. Calm wind becoming south 5 to 9 mph in the afternoon. Winds could gust as high as 18 mph.

    High: 107 °F

    Hot

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 89. South wind 3 to 7 mph.

    Low: 89 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny and hot, with a high near 107. Light south wind increasing to 6 to 11 mph in the morning. Winds could gust as high as 20 mph.

    High: 107 °F

    Hot

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 90. South wind 5 to 9 mph becoming light  after midnight.

    Low: 90 °F

    Mostly Clear

  • Thursday

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

    High: 107 °F

    Hot

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 91.

    Low: 91 °F

    Partly Cloudy

  • Friday

    Friday: 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

  • Friday Night

    Friday Night: A slight chance of showers and thunderstorms before 11pm.  Partly cloudy, with a low around 90.

    Low: 90 °F

    Slight Chance
    T-storms then
    Partly Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around 89. South wind 5 to 8 mph becoming calm in the evening.
Tuesday
Mostly sunny and hot, with a high near 107. Calm wind becoming south 5 to 9 mph in the afternoon. Winds could gust as high as 18 mph.
Tuesday Night
Partly cloudy, with a low around 89. South wind 3 to 7 mph.
Wednesday
Sunny and hot, with a high near 107. Light south wind increasing to 6 to 11 mph in the morning. Winds could gust as high as 20 mph.
Wednesday Night
Mostly clear, with a low around 90. South wind 5 to 9 mph becoming light after midnight.
Thursday
Sunny and hot, with a high near 107.
Thursday Night
Partly cloudy, with a low around 91.
Friday
A slight chance of showers and thunderstorms after 11am. Mostly sunny and hot, with a high near 105.
Friday Night
A slight chance of showers and thunderstorms before 11pm. Partly cloudy, with a low around 90.
Saturday
A slight chance of showers and thunderstorms after 11am. Mostly sunny and hot, with a high near 105.
Saturday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 90.
Sunday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 104.
Sunday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 89.
Monday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 103.
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles S Lake Mead NV
 36.01°N 114.76°W (Elev. 1601 ft)
1:37 pm PDT Aug 17, 2026
8pm PDT Aug 17, 2026-6pm PDT Aug 24, 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