Dangerous Heat over the South-Central and Southwest U.S. Through Next Week

Dangerous heat persists across the Desert Southwest through this weekend and across the Southern Plains and Lower Mississippi Valley through at least the middle of next week. Numerous daily record high temperatures are expected through at least Tuesday for much of Texas and Oklahoma as well as portions of Louisiana, New Mexico, and Arizona. Read More >

Hazardous Weather Conditions

Current conditions at

McKinney - McKinney National Airport (KTKI)

Lat: 33.18°NLon: 96.59°WElev: 584ft.

Fair

81°F

27°C

Humidity	57%
Wind Speed	E 5 mph
Barometer	29.97 in (1013.8 mb)
Dewpoint	64°F (18°C)
Visibility	10.00 mi
Heat Index	83°F (28°C)
Last update	23 Aug 5:53 am CDT

More Information:

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

Extended Forecast for

Prosper TX

Extreme Heat Warning August 23, 12:00pm until August 23, 09:00pm

Click here for hazard details and duration

Extreme Heat Warning

Today
High: 104 °F
Hot
Tonight
Low: 82 °F
Mostly Clear
Monday
High: 105 °F
Hot
Monday Night
Low: 81 °F
Mostly Clear
Tuesday
High: 104 °F
Hot
Tuesday Night
Low: 81 °F
Partly Cloudy
Wednesday
High: 98 °F
Slight Chance
Showers then
Slight Chance
T-storms
Wednesday Night
Low: 78 °F
Partly Cloudy
Thursday
High: 100 °F
Hot

Detailed Forecast

Today

Sunny and hot, with a high near 104. East southeast wind 5 to 10 mph becoming south southwest in the morning.

Tonight

Mostly clear, with a low around 82. South wind 5 to 10 mph.

Monday

Mostly sunny and hot, with a high near 105. South southwest wind 10 to 15 mph, with gusts as high as 20 mph.

Monday Night

Mostly clear, with a low around 81. South wind 10 to 15 mph, with gusts as high as 20 mph.

Tuesday

Sunny and hot, with a high near 104. South southwest wind 10 to 15 mph, with gusts as high as 20 mph.

Tuesday Night

Partly cloudy, with a low around 81. South wind around 10 mph.

Wednesday

A slight chance of showers, with thunderstorms also possible after 1pm. Mostly sunny, with a high near 98. West southwest wind 5 to 10 mph. Chance of precipitation is 20%.

Wednesday Night

Partly cloudy, with a low around 78. Northeast wind around 5 mph.

Thursday

Sunny and hot, with a high near 100. North wind 5 to 10 mph.

Thursday Night

Partly cloudy, with a low around 77.

Friday

Sunny and hot, with a high near 100.

Friday Night

Mostly clear, with a low around 78.

Saturday

Sunny and hot, with a high near 100.