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 >

Hazardous Weather Conditions

Extreme Heat Warning until August 21, 08:00 PM PDT

Current conditions at

Henderson (CMP10)

Lat: 36.0075°NLon: 114.96556°WElev: 2190.0ft.

99°F

37°C

Humidity	12%
Wind Speed	SE 1 MPH
Barometer	NA
Dewpoint	38°F (3°C)
Visibility	NA
Heat Index	94°F (34°C)
Last update	19 Aug 10:20 PM PDT

More Information:

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

Extended Forecast for

9 Miles NW Boulder City NV

Extreme Heat Warning August 19, 10:49pm until August 21, 08:00pm

Click here for hazard details and duration

Extreme Heat Warning

Extreme Heat Warning August 19, 10:49pm until August 21, 08:00pm
NOW until 8:00pm Fri
Extreme Heat Warning
Tonight
Low: 90 °F
Mostly Clear
Thursday
High: 109 °F
Hot
Thursday Night
Low: 89 °F
Partly Cloudy
Friday
High: 107 °F
Mostly Sunny
then Slight
Chance
T-storms
Friday Night
Low: 87 °F
Slight Chance
T-storms then
Mostly Clear
Saturday
High: 108 °F
Hot
Saturday Night
Low: 88 °F
Partly Cloudy
Sunday
High: 108 °F
Hot

Detailed Forecast

Tonight

Mostly clear, with a low around 90. South wind 5 to 7 mph becoming calm after midnight.

Thursday

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

Thursday Night

Partly cloudy, with a low around 89. South southeast wind 5 to 9 mph becoming calm in the evening.

Friday

A 10 percent chance of showers and thunderstorms after 3pm. Mostly sunny and hot, with a high near 107. Calm wind becoming south southeast around 6 mph in the afternoon.

Friday Night

A 10 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 87. South southwest wind around 6 mph becoming calm in the evening.

Saturday

Sunny and hot, with a high near 108.

Saturday Night

Partly cloudy, with a low around 88.

Sunday

Sunny and hot, with a high near 108.

Sunday Night

Partly cloudy, with a low around 87.

Monday

A slight chance of showers and thunderstorms after 11am. Sunny and hot, with a high near 106.

Monday Night

Mostly clear, with a low around 85.