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

Showers and Storms in the East; Dangerously Hot and Dry in the West

Scattered showers and storms are expected across portions of the Central and Eastern U.S. through the end of the week. Meanwhile, dangerous heat will intensify across the Desert Southwest and Intermountain West. Hot, dry weather and increasing winds will allow elevated wildfire conditions to return to the northern Intermountain West, where air quality issues persist from ongoing fires. Read More >

Current conditions at

McKinney - McKinney National Airport (KTKI)

Lat: 33.18°NLon: 96.59°WElev: 584ft.

Fair

75°F

24°C

Humidity 82%
Wind Speed SE 5 mph
Barometer 30.01 in (1015.5 mb)
Dewpoint 69°F (21°C)
Visibility 10.00 mi
Last update 9 Aug 4:53 am CDT
Extended Forecast for

Allen TX

  • Today

    Today: Sunny and hot, with a high near 99. Heat index values as high as 103. South wind 5 to 10 mph.

    High: 99 °F

    Hot

  • Tonight

    Tonight: Clear, with a low around 79. South southeast wind around 10 mph.

    Low: 79 °F

    Clear

  • Monday

    Monday: Sunny and hot, with a high near 99. Heat index values as high as 102. South wind around 10 mph, with gusts as high as 20 mph.

    High: 99 °F

    Hot

  • Monday Night

    Monday Night: Clear, with a low around 80. South southeast wind around 10 mph, with gusts as high as 20 mph.

    Low: 80 °F

    Clear

  • Tuesday

    Tuesday: Sunny and hot, with a high near 100. South wind 10 to 15 mph, with gusts as high as 20 mph.

    High: 100 °F

    Hot

  • Tuesday Night

    Tuesday Night: Clear, with a low around 80. South wind 10 to 15 mph, with gusts as high as 20 mph.

    Low: 80 °F

    Clear

  • Wednesday

    Wednesday: Sunny and hot, with a high near 99. South wind around 15 mph, with gusts as high as 20 mph.

    High: 99 °F

    Hot

  • Wednesday Night

    Wednesday Night: Clear, with a low around 80. South wind 10 to 15 mph, with gusts as high as 25 mph.

    Low: 80 °F

    Clear

  • Thursday

    Thursday: Sunny and hot, with a high near 101. South wind around 15 mph, with gusts as high as 25 mph.

    High: 101 °F

    Hot

Detailed Forecast

Today
Sunny and hot, with a high near 99. Heat index values as high as 103. South wind 5 to 10 mph.
Tonight
Clear, with a low around 79. South southeast wind around 10 mph.
Monday
Sunny and hot, with a high near 99. Heat index values as high as 102. South wind around 10 mph, with gusts as high as 20 mph.
Monday Night
Clear, with a low around 80. South southeast wind around 10 mph, with gusts as high as 20 mph.
Tuesday
Sunny and hot, with a high near 100. South wind 10 to 15 mph, with gusts as high as 20 mph.
Tuesday Night
Clear, with a low around 80. South wind 10 to 15 mph, with gusts as high as 20 mph.
Wednesday
Sunny and hot, with a high near 99. South wind around 15 mph, with gusts as high as 20 mph.
Wednesday Night
Clear, with a low around 80. South wind 10 to 15 mph, with gusts as high as 25 mph.
Thursday
Sunny and hot, with a high near 101. South wind around 15 mph, with gusts as high as 25 mph.
Thursday Night
Clear, with a low around 79.
Friday
Sunny and hot, with a high near 101.
Friday Night
Mostly clear, with a low around 80.
Saturday
Sunny and hot, with a high near 100.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Allen TX
 33.1°N 96.67°W (Elev. 656 ft)
Last Update:
1:26 am CDT Aug 9, 2026
Forecast Valid:
5am CDT Aug 9, 2026-6pm CDT Aug 15, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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