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

Nellis Air Force Base (KLSV)

Lat: 36.23333°NLon: 115.03333°WElev: 1870.0ft.

Clear

96°F

36°C

Humidity 16%
Wind Speed WSW 4 MPH
Barometer 29.86 in (1011.18 mb)
Dewpoint 43°F (6°C)
Visibility 10.00 mi
Heat Index92°F (33°C)
Last update 17 Aug 11:55 PM PDT
Extended Forecast for

10 Miles NNE 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
  • Overnight

    Overnight: Mostly clear, with a low around 85. Calm wind.

    Low: 85 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 103. Calm wind becoming south 5 to 7 mph in the afternoon.

    High: 103 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 85. Southwest wind around 5 mph becoming calm  in the evening.

    Low: 85 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 104. Calm wind becoming south 5 to 8 mph in the afternoon.

    High: 104 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 85. South wind 5 to 8 mph becoming calm  after midnight.

    Low: 85 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 103.

    High: 103 °F

    Sunny

  • Thursday Night

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

    Low: 85 °F

    Partly Cloudy

  • Friday

    Friday: Isolated showers and thunderstorms after 11am.  Mostly sunny, with a high near 101.

    High: 101 °F

    Isolated
    T-storms

  • Friday Night

    Friday Night: A slight chance of showers and thunderstorms before 11pm.  Mostly cloudy, with a low around 84.

    Low: 84 °F

    Slight Chance
    T-storms then
    Mostly Cloudy

Detailed Forecast

Overnight
Mostly clear, with a low around 85. Calm wind.
Tuesday
Mostly sunny, with a high near 103. Calm wind becoming south 5 to 7 mph in the afternoon.
Tuesday Night
Partly cloudy, with a low around 85. Southwest wind around 5 mph becoming calm in the evening.
Wednesday
Sunny, with a high near 104. Calm wind becoming south 5 to 8 mph in the afternoon.
Wednesday Night
Partly cloudy, with a low around 85. South wind 5 to 8 mph becoming calm after midnight.
Thursday
Sunny, with a high near 103.
Thursday Night
Partly cloudy, with a low around 85.
Friday
Isolated showers and thunderstorms after 11am. Mostly sunny, with a high near 101.
Friday Night
A slight chance of showers and thunderstorms before 11pm. Mostly cloudy, with a low around 84.
Saturday
A slight chance of showers and thunderstorms after 11am. Mostly sunny, with a high near 101.
Saturday Night
Partly cloudy, with a low around 84.
Sunday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 100.
Sunday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 83.
Monday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 98.
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ABOUT THIS FORECAST

 
Point Forecast:
10 Miles NNE Lake Mead NV
 36.22°N 114.69°W (Elev. 2362 ft)
11:33 pm PDT Aug 17, 2026
1am PDT Aug 18, 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