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

Heat Builds in the West; Extremely Critical Fire Weather in the Northwest

A heat wave over the Southwest will intensify this week, peaking and expanding into the Intermountain West and northern High Plains this weekend. Critical to extremely critical fire weather conditions are forecast from the Northwest and the northern Great Basin this weekend. Particularly Dangerous Situation Red Flag Warnings have been issued. Read More >

Current conditions at

McKinney - McKinney National Airport (KTKI)

Lat: 33.18°NLon: 96.59°WElev: 584ft.

Fair

70°F

21°C

Humidity 79%
Wind Speed N 3 mph
Barometer 29.91 in (1012.2 mb)
Dewpoint 63°F (17°C)
Visibility 10.00 mi
Last update 2 Aug 2:53 am CDT
Extended Forecast for

McKinney TX

  • Overnight

    Overnight: Clear, with a low around 72. North wind around 5 mph.

    Low: 72 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 96. North wind 5 to 10 mph.

    High: 96 °F

    Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 72. North northeast wind around 5 mph becoming calm in the evening.

    Low: 72 °F

    Clear

  • Monday

    Monday: Sunny and hot, with a high near 99. Calm wind becoming south southeast around 5 mph in the afternoon.

    High: 99 °F

    Hot

  • Monday Night

    Monday Night: Clear, with a low around 76. Southeast wind around 5 mph.

    Low: 76 °F

    Clear

  • Tuesday

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

    High: 101 °F

    Hot

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 79. South southeast wind 5 to 10 mph.

    Low: 79 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny and hot, with a high near 100. South southwest wind 5 to 10 mph.

    High: 100 °F

    Hot

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 79. South southeast wind 5 to 10 mph.

    Low: 79 °F

    Mostly Clear

Detailed Forecast

Overnight
Clear, with a low around 72. North wind around 5 mph.
Sunday
Sunny, with a high near 96. North wind 5 to 10 mph.
Sunday Night
Clear, with a low around 72. North northeast wind around 5 mph becoming calm in the evening.
Monday
Sunny and hot, with a high near 99. Calm wind becoming south southeast around 5 mph in the afternoon.
Monday Night
Clear, with a low around 76. Southeast wind around 5 mph.
Tuesday
Sunny and hot, with a high near 101. South southwest wind 5 to 10 mph.
Tuesday Night
Mostly clear, with a low around 79. South southeast wind 5 to 10 mph.
Wednesday
Sunny and hot, with a high near 100. South southwest wind 5 to 10 mph.
Wednesday Night
Mostly clear, with a low around 79. South southeast wind 5 to 10 mph.
Thursday
Sunny and hot, with a high near 99.
Thursday Night
Mostly clear, with a low around 79.
Friday
Sunny, with a high near 98.
Friday Night
Mostly clear, with a low around 78.
Saturday
Sunny, with a high near 98.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
McKinney TX
 33.19°N 96.62°W (Elev. 587 ft)
Last Update:
1:26 am CDT Aug 2, 2026
Forecast Valid:
3am CDT Aug 2, 2026-6pm CDT Aug 8, 2026
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation