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

97°F

36°C

Humidity	35%
Wind Speed	E 8 mph
Barometer	30.00 in (1015.0 mb)
Dewpoint	65°F (18°C)
Visibility	10.00 mi
Heat Index	100°F (38°C)
Last update	22 Aug 2:53 pm CDT

More Information:

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

Extended Forecast for

2 Miles ESE Allen TX

Heat Advisory August 22, 03:26pm until August 22, 08:00pm

Click here for hazard details and duration

Heat Advisory

Heat Advisory August 22, 03:26pm until August 22, 08:00pm
NOW until 8:00pm Sat
Heat Advisory
This Afternoon
High: 105 °F
Hot
Tonight
Low: 82 °F
Slight Chance
T-storms
Sunday
High: 107 °F
Hot
Sunday Night
Low: 85 °F
Mostly Clear
Monday
High: 108 °F
Hot
Monday Night
Low: 84 °F
Mostly Clear
Tuesday
High: 108 °F
Hot
Tuesday Night
Low: 83 °F
Mostly Clear
then Slight
Chance
T-storms

Detailed Forecast

This Afternoon

Mostly sunny and hot, with a high near 105. Heat index values as high as 108. South southeast wind around 5 mph.

Tonight

A slight chance of showers and thunderstorms before 1am, then a slight chance of showers between 1am and 4am. Partly cloudy, with a low around 82. South southeast wind around 5 mph. Chance of precipitation is 20%.

Sunday

Mostly sunny and hot, with a high near 107. Heat index values as high as 110. South southwest wind 5 to 10 mph.

Sunday Night

Mostly clear, with a low around 85. South wind 10 to 15 mph, with gusts as high as 20 mph.

Monday

Mostly sunny and hot, with a high near 108. Southwest wind 10 to 15 mph, with gusts as high as 20 mph.

Monday Night

Mostly clear, with a low around 84. South southwest wind 10 to 15 mph, with gusts as high as 20 mph.

Tuesday

Sunny and hot, with a high near 108. Southwest wind around 10 mph, with gusts as high as 20 mph.

Tuesday Night

A 20 percent chance of showers and thunderstorms after 1am. Mostly clear, with a low around 83. South wind around 10 mph.

Wednesday

A slight chance of showers, with thunderstorms also possible after 1pm. Mostly sunny and hot, with a high near 104. West wind around 10 mph. Chance of precipitation is 20%.

Wednesday Night

A slight chance of showers and thunderstorms. Partly cloudy, with a low around 79. Chance of precipitation is 20%.

Thursday

Mostly sunny and hot, with a high near 102.

Thursday Night

A 20 percent chance of showers and thunderstorms. Mostly clear, with a low around 78.

Friday

Sunny and hot, with a high near 102.