National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Thunderstorms and Heavy Rainfall in the Southeast, Montana, and Iowa; Lowell Begins to Impact Hawaii

Strong thunderstorms with damaging winds and heavy rain are expected across portions of the Southeast. Thunderstorms may produce large hail across portions of Montana. Heavy rainfall could produce flash flooding across Iowa and vulnerable areas in Utah. Lowell will bring heavy rain, dangerous swells and rip currents to portions of Hawaii. Sweltering heat persists across the South-Central US. Read More >

Current conditions at

Harry Reid International Airport (KLAS)

Lat: 36.07188°NLon: 115.1634°WElev: 2180.0ft.

Overcast

79°F

26°C

Humidity 47%
Wind Speed S 11 MPH
Barometer 30.0 in (1015.92 mb)
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Heat Index80°F (27°C)
Last update 06 Sep 04:00 PM PDT
Extended Forecast for

Las Vegas NV

  • This Afternoon

    This Afternoon: A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a steady temperature around 81. South wind around 8 mph.

    High: 81 °F

    Chance
    Showers

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming mostly clear, with a low around 74. South southeast wind around 6 mph becoming calm in the evening.

    Low: 74 °F

    Decreasing
    Clouds

  • Labor Day

    Labor Day: Sunny, with a high near 94. Calm wind becoming west southwest 5 to 9 mph in the afternoon. Winds could gust as high as 20 mph.

    High: 94 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 77. West southwest wind 5 to 8 mph becoming calm after midnight.

    Low: 77 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 99. Light and variable wind.

    High: 99 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 83.

    Low: 83 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 103.

    High: 103 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 85.

    Low: 85 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny and hot, with a high near 106.

    High: 106 °F

    Hot

Detailed Forecast

This Afternoon
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a steady temperature around 81. South wind around 8 mph.
Tonight
Mostly cloudy, then gradually becoming mostly clear, with a low around 74. South southeast wind around 6 mph becoming calm in the evening.
Labor Day
Sunny, with a high near 94. Calm wind becoming west southwest 5 to 9 mph in the afternoon. Winds could gust as high as 20 mph.
Monday Night
Mostly clear, with a low around 77. West southwest wind 5 to 8 mph becoming calm after midnight.
Tuesday
Sunny, with a high near 99. Light and variable wind.
Tuesday Night
Mostly clear, with a low around 83.
Wednesday
Sunny, with a high near 103.
Wednesday Night
Mostly clear, with a low around 85.
Thursday
Sunny and hot, with a high near 106.
Thursday Night
Mostly clear, with a low around 87.
Friday
Sunny and hot, with a high near 105.
Friday Night
Mostly clear, with a low around 84.
Saturday
Sunny, with a high near 101.
Saturday Night
Mostly clear, with a low around 80.
Sunday
Sunny, with a high near 98.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Las Vegas NV
 36.08°N 115.14°W (Elev. 2067 ft)
Last Update:
11:33 am PDT Sep 6, 2026
Forecast Valid:
4pm PDT Sep 6, 2026-6pm PDT Sep 13, 2026
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation