Current conditions at

McKinney - McKinney National Airport (KTKI)

Lat: 33.18° N Lon: 96.59° W Elev: 584 ft.

Fair

79°F

26°C

Humidity 67%
Wind Speed S 10 mph
Barometer 29.92 in (1012.3 mb)
Dewpoint 67°F (19°C)
Visibility 10.00 mi
Heat Index81°F (27°C)
Last update 20 Sep 3:53 am CDT
Detailed forecast for

Collin County

Today
Mostly sunny. Highs in the mid 90s. South winds 5 to 10 mph.
Tonight
Mostly cloudy with a 50 percent chance of showers and thunderstorms. Lows in the lower 70s. East winds around 5 mph.
Monday
Partly sunny in the morning, then clearing. A 40 percent chance of showers and thunderstorms. Humid with highs in the lower 90s. Southeast winds around 5 mph, becoming north in the afternoon.
Monday Night
Mostly clear in the evening, then partly cloudy with a 20 percent chance of showers and thunderstorms after midnight. Lows in the lower 70s. Northeast winds 5 to 10 mph.
Tuesday
Mostly sunny. Highs in the lower 90s. Northeast winds 5 to 10 mph.
Tuesday Night
Partly cloudy. Lows around 70.
Wednesday
Mostly sunny. Highs in the lower 90s.
Wednesday Night
Partly cloudy. Lows in the upper 60s.
Thursday
Mostly sunny. Highs in the lower 90s.
Thursday Night
Partly cloudy. Lows in the upper 60s.
Friday
Mostly sunny. Highs in the upper 80s.
Friday Night
Mostly cloudy. A 20 percent chance of showers after midnight. Lows in the upper 60s.
Saturday
Partly sunny. A 20 percent chance of showers in the morning. Highs in the upper 80s.



Basemap Options
Click map to change the forecast location
Loading map...
207 AM CDT Sun Sep 20 2026
 
 

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database