Heat Across the Center of the Nation; Severe Thunderstorms Across the Great Lakes and Ohio Valley

Heat expands across the Desert Southwest, Plains, Mississippi Valley and Midwest into Monday. Fire weather concerns continue for portions of the Intermountain West. Active monsoonal moisture fuels thunderstorms over the Southwest with possible flash flooding. Tropical cyclone Fausto in the Pacific, should weaken as it approaches Hawaii; Dangerous surf, swells and rip currents are expected. Read More >

Hazardous Weather Conditions

Current conditions at

McKinney - McKinney National Airport (KTKI)

Lat: 33.18°NLon: 96.59°WElev: 584ft.

Fair

96°F

36°C

Humidity 39%
Wind Speed SE 13 mph
Barometer 29.93 in (1012.8 mb)
Dewpoint 67°F (19°C)
Visibility 10.00 mi
Heat Index100°F (38°C)
Last update 26 Jul 5:53 pm CDT
Extended Forecast for

3 Miles NW Allen TX

Heat Advisory July 26, 06:10pm until July 27, 08:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory July 26, 06:10pm until July 27, 08:00pm

    NOW until 8:00pm Mon

    Heat Advisory

  • Tonight

    Low: 79 °F

    Mostly Clear

  • Monday

    Monday: Sunny and hot, with a high near 102. Heat index values as high as 108. South southwest wind around 10 mph.

    High: 102 °F

    Hot

  • Monday Night

    Monday Night: Mostly clear, with a low around 79. South wind around 10 mph.

    Low: 79 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny and hot, with a high near 101. Heat index values as high as 106. South southwest wind 5 to 10 mph.

    High: 101 °F

    Hot

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 81. South wind 5 to 10 mph.

    Low: 81 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny and hot, with a high near 101. South southwest wind 5 to 10 mph.

    High: 101 °F

    Hot

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 81. South southeast wind 5 to 10 mph.

    Low: 81 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny and hot, with a high near 101. South southwest wind 5 to 10 mph.

    High: 101 °F

    Hot

Detailed Forecast

Tonight
Mostly clear, with a low around 79. South wind around 10 mph.
Monday
Sunny and hot, with a high near 102. Heat index values as high as 108. South southwest wind around 10 mph.
Monday Night
Mostly clear, with a low around 79. South wind around 10 mph.
Tuesday
Sunny and hot, with a high near 101. Heat index values as high as 106. South southwest wind 5 to 10 mph.
Tuesday Night
Mostly clear, with a low around 81. South wind 5 to 10 mph.
Wednesday
Mostly sunny and hot, with a high near 101. South southwest wind 5 to 10 mph.
Wednesday Night
Mostly clear, with a low around 81. South southeast wind 5 to 10 mph.
Thursday
Mostly sunny and hot, with a high near 101. South southwest wind 5 to 10 mph.
Thursday Night
Mostly clear, with a low around 82. South southeast wind around 10 mph.
Friday
Mostly sunny and hot, with a high near 102.
Friday Night
Mostly clear, with a low around 82.
Saturday
Mostly sunny and hot, with a high near 100.
Saturday Night
Mostly clear, with a low around 77.
Sunday
Sunny, with a high near 97.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NW Allen TX
 33.14°N 96.7°W (Elev. 699 ft)
5:41 pm CDT Jul 26, 2026
6pm CDT Jul 26, 2026-6pm CDT Aug 2, 2026
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database