Heavy Rainfall Continues in Hawaii; Severe Thunderstorms and Heavy Rainfall in the Plains and Southern Appalachians

Areas of gusty winds, heavy rain leading to flash flooding, and high surf continue across portions of Hawaii as Tropical Storm Lala continues to move away from the islands. Severe thunderstorms and heavy rainfall will shift into the southern Appalachians today. Strong to severe thunderstorms may produce large hail, scattered wind gusts, and heavy rain today across the northern and central Plains. Read More >

Hazardous Weather Conditions

Extreme Heat Warning in effect from August 18, 10:00 AM PDT until August 21, 08:00 PM PDT

Current conditions at

Nellis Air Force Base (KLSV)

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

Clear

83°F

28°C

Humidity	36%
Wind Speed	N 0 MPH
Barometer	29.93 in (1013.55 mb)
Dewpoint	54°F (12°C)
Visibility	10.00 mi
Heat Index	82°F (28°C)
Last update	17 Aug 04:55 AM PDT

More Information:

Local Forecast Office More Local Wx 3 Day History Hourly Weather Forecast

Extended Forecast for

12 Miles N 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

Today
High: 96 °F
Sunny
Tonight
Low: 80 °F
Mostly Clear
Tuesday
High: 98 °F
Sunny
Tuesday Night
Low: 80 °F
Mostly Clear
Wednesday
High: 99 °F
Sunny
Wednesday Night
Low: 81 °F
Partly Cloudy
Thursday
High: 99 °F
Sunny
Thursday Night
Low: 81 °F
Partly Cloudy
Friday
High: 97 °F
Slight Chance
T-storms

Detailed Forecast

Today

Sunny, with a high near 96. Calm wind becoming south 5 to 7 mph in the afternoon.

Tonight

Mostly clear, with a low around 80. South wind around 5 mph becoming calm in the evening.

Tuesday

Sunny, with a high near 98. Calm wind becoming south 5 to 8 mph in the morning.

Tuesday Night

Mostly clear, with a low around 80. South southwest wind 5 to 7 mph becoming calm in the evening.

Wednesday

Sunny, with a high near 99. Light southeast wind becoming south southwest 6 to 11 mph in the morning. Winds could gust as high as 20 mph.

Wednesday Night

Partly cloudy, with a low around 81.

Thursday

Sunny, with a high near 99.

Thursday Night

Partly cloudy, with a low around 81.

Friday

A slight chance of showers and thunderstorms after 11am. Mostly sunny, with a high near 97.

Friday Night

A slight chance of showers and thunderstorms before 11pm. Partly cloudy, with a low around 80.

Saturday

A slight chance of showers and thunderstorms. Mostly sunny, with a high near 96.

Saturday Night

A slight chance of showers and thunderstorms. Partly cloudy, with a low around 79.

Sunday

A slight chance of showers and thunderstorms. Mostly sunny, with a high near 94.

Additional Forecasts and Information

Zone Area Forecast for Lake Mead - NV side, NV

Basemap Options

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ABOUT THIS FORECAST

Point Forecast:

12 Miles N Lake Mead NV
36.26°N 114.75°W (Elev. 3163 ft)

2:31 am PDT Aug 17, 2026

Forecast Valid:

5am PDT Aug 17, 2026-6pm PDT Aug 23, 2026

Forecast Discussion

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