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Hazardous Weather Conditions
Current conditions at
McKinney - McKinney National Airport (KTKI)
Lat: 33.18°NLon: 96.59°WElev: 584ft.
Fair
82°F
28°C
| Humidity | 65% |
| Wind Speed | S 3 mph |
| Barometer | 30.17 in (1020.8 mb) |
| Dewpoint | 69°F (21°C) |
| Visibility | 10.00 mi |
| Heat Index | 85°F (29°C) |
| Last update | 17 Sep 12:53 am CDT |
Extended Forecast for
McKinney TX
Overnight

Low: 78 °F
Mostly Clear
Thursday
High: 99 °F
Sunny then
Slight Chance
T-stormsThursday Night

Low: 77 °F
Mostly Clear
Friday

High: 99 °F
Hot
Friday Night

Low: 75 °F
Clear
Saturday

High: 99 °F
Hot
Saturday Night

Low: 76 °F
Mostly Clear
Sunday

High: 99 °F
Hot
Sunday Night

Low: 76 °F
Partly Cloudy
Detailed Forecast
Overnight
Mostly clear, with a low around 78. South southeast wind around 5 mph.
Thursday
A 10 percent chance of showers and thunderstorms after 4pm. Mostly sunny and hot, with a high near 99. Heat index values as high as 104. South southeast wind 5 to 10 mph.
Thursday Night
Mostly clear, with a low around 77. Southeast wind 5 to 10 mph.
Friday
Sunny and hot, with a high near 99. Heat index values as high as 103. Calm wind becoming south southeast around 5 mph in the afternoon.
Friday Night
Clear, with a low around 75. South southeast wind around 5 mph.
Saturday
Sunny and hot, with a high near 99. South southwest wind 5 to 10 mph, with gusts as high as 20 mph.
Saturday Night
Mostly clear, with a low around 76. South southeast wind 5 to 10 mph.
Sunday
Sunny and hot, with a high near 99. South wind 5 to 10 mph.
Sunday Night
Partly cloudy, with a low around 76. South southeast wind 5 to 10 mph.
Monday
A 20 percent chance of showers. Mostly sunny, with a high near 96.
Monday Night
A 20 percent chance of showers. Partly cloudy, with a low around 73.
Tuesday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 95.
Tuesday Night
Partly cloudy, with a low around 73.
Wednesday
Mostly sunny, with a high near 95.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
McKinney TX
33.19°N 96.62°W (Elev. 587 ft)
33.19°N 96.62°W (Elev. 587 ft)
1:26 am CDT Sep 17, 2026
1am CDT Sep 17, 2026-6pm CDT Sep 23, 2026



