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

Dangerous Heat and Possible Flooding

Dangerous heat will persist across the Southwest U.S. through Saturday with daytime highs of 110-115°F. Extreme Heat Warnings remain in effect. Dangerous heat will build across the southern Plains again beginning this weekend. Heavy to excessive rain over the Carolinas Friday may lead to isolated areas of flash flooding. Read More >

Hazardous Weather Conditions

Current conditions at

McKinney - McKinney National Airport (KTKI)

Lat: 33.18°NLon: 96.59°WElev: 584ft.

Fair

74°F

23°C

Humidity 76%
Wind Speed Calm
Barometer 30.02 in (1015.7 mb)
Dewpoint 66°F (19°C)
Visibility 10.00 mi
Last update 28 Aug 2:53 am CDT
Extended Forecast for

Allen TXSimilar City Names

  • Overnight

    Overnight: Clear, with a low around 77. Southeast wind around 5 mph becoming calm.

    Low: 77 °F

    Clear

  • Friday

    Friday: Sunny and hot, with a high near 100. Calm wind becoming east northeast around 5 mph in the afternoon.

    High: 100 °F

    Hot

  • Friday Night

    Friday Night: Clear, with a low around 76. East wind 5 to 10 mph.

    Low: 76 °F

    Clear

  • Saturday

    Saturday: Sunny and hot, with a high near 100. Southeast wind around 5 mph.

    High: 100 °F

    Hot

  • Saturday Night

    Saturday Night: Clear, with a low around 78. Southeast wind 5 to 10 mph.

    Low: 78 °F

    Clear

  • Sunday

    Sunday: Sunny and hot, with a high near 101. South wind 5 to 10 mph.

    High: 101 °F

    Hot

  • Sunday Night

    Sunday Night: 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 100. South wind around 10 mph.

    High: 100 °F

    Hot

  • Monday Night

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

    Low: 79 °F

    Mostly Clear

Detailed Forecast

Overnight
Clear, with a low around 77. Southeast wind around 5 mph becoming calm.
Friday
Sunny and hot, with a high near 100. Calm wind becoming east northeast around 5 mph in the afternoon.
Friday Night
Clear, with a low around 76. East wind 5 to 10 mph.
Saturday
Sunny and hot, with a high near 100. Southeast wind around 5 mph.
Saturday Night
Clear, with a low around 78. Southeast wind 5 to 10 mph.
Sunday
Sunny and hot, with a high near 101. South wind 5 to 10 mph.
Sunday Night
Clear, with a low around 79. South southeast wind around 10 mph.
Monday
Sunny and hot, with a high near 100. South wind around 10 mph.
Monday Night
Mostly clear, with a low around 79. South southeast wind around 10 mph.
Tuesday
Sunny and hot, with a high near 99.
Tuesday Night
Mostly clear, with a low around 79.
Wednesday
Sunny and hot, with a high near 100.
Wednesday Night
Mostly clear, with a low around 79.
Thursday
Sunny and hot, with a high near 101.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Allen TXSimilar City Names
 33.12°N 96.67°W (Elev. 653 ft)
Last Update:
1:26 am CDT Aug 28, 2026
Forecast Valid:
3am CDT Aug 28, 2026-6pm CDT Sep 3, 2026
 
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Additional Resources

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