
Severe Thunderstorms and Heavy Rain Across the Ohio Valley;
Severe thunderstorms with damaging wind gusts will be possible from the mid-Mississippi Valley into parts of the Ohio Valley and central Appalachians. Heavy rain associated with these storms may lead to considerable flash and urban flooding impacts across portions of the Ohio Valley. Mid-summer heat persists from the Central Plains to the Southeast. Read More >
Hazardous Weather Conditions
Current conditions at
McKinney - McKinney National Airport (KTKI)
Lat: 33.18°NLon: 96.59°WElev: 584ft.
Fair
92°F
33°C
| Humidity | 51% |
| Wind Speed | S 13 G 20 mph |
| Barometer | 30.05 in (1016.7 mb) |
| Dewpoint | 71°F (22°C) |
| Visibility | 10.00 mi |
| Heat Index | 99°F (37°C) |
| Last update | 11 Aug 11:53 am CDT |
Extended Forecast for
McKinney TX
Heat Advisory August 11, 01:00pm until August 11, 08:00pm
This Afternoon

High: 99 °F
Hot
Tonight

Low: 79 °F
Mostly Clear
Wednesday

High: 100 °F
Hot
Wednesday Night

Low: 79 °F
Clear
Thursday

High: 100 °F
Hot
Thursday Night

Low: 79 °F
Clear
Friday

High: 100 °F
Hot
Friday Night

Low: 80 °F
Clear
Saturday

High: 101 °F
Hot
Detailed Forecast
This Afternoon
Sunny and hot, with a high near 99. Heat index values as high as 106. South wind around 10 mph, with gusts as high as 20 mph.
Tonight
Mostly clear, with a low around 79. South wind 10 to 15 mph.
Wednesday
Sunny and hot, with a high near 100. Heat index values as high as 104. South wind 10 to 15 mph, with gusts as high as 20 mph.
Wednesday Night
Clear, with a low around 79. South wind 10 to 15 mph, with gusts as high as 20 mph.
Thursday
Sunny and hot, with a high near 100. South wind around 15 mph, with gusts as high as 25 mph.
Thursday Night
Clear, with a low around 79. South wind 10 to 15 mph, with gusts as high as 25 mph.
Friday
Sunny and hot, with a high near 100. South wind 10 to 15 mph, with gusts as high as 25 mph.
Friday Night
Clear, with a low around 80. South wind 10 to 15 mph, with gusts as high as 25 mph.
Saturday
Sunny and hot, with a high near 101. South wind around 10 mph, with gusts as high as 20 mph.
Saturday Night
Clear, with a low around 79.
Sunday
Sunny and hot, with a high near 101.
Sunday Night
Clear, with a low around 79.
Monday
Sunny and hot, with a high near 102.
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)
12:12 pm CDT Aug 11, 2026
12pm CDT Aug 11, 2026-6pm CDT Aug 17, 2026



