Current conditions at

McKinney - McKinney National Airport (KTKI)

Lat: 33.18°NLon: 96.59°WElev: 584ft.

Fair

81°F

27°C

Humidity 61%
Wind Speed S 12 mph
Barometer 29.92 in (1012.4 mb)
Dewpoint 66°F (19°C)
Visibility 10.00 mi
Heat Index83°F (28°C)
Last update 20 Sep 2:53 am CDT
Extended Forecast for

McKinney TX

  • Overnight

    Overnight: Partly cloudy, with a low around 76. South wind around 10 mph.

    Low: 76 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 96. Heat index values as high as 101. South wind around 10 mph.

    High: 96 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: A 40 percent chance of showers and thunderstorms.  Mostly cloudy, with a low around 71. West wind around 5 mph becoming east after midnight.

    Low: 71 °F

    Chance
    T-storms

  • Monday

    Monday: A 40 percent chance of showers and thunderstorms, mainly after 1pm.  Mostly sunny, with a high near 93. Heat index values as high as 101. East northeast wind around 5 mph becoming west northwest in the afternoon.

    High: 93 °F

    Chance
    T-storms

  • Monday Night

    Monday Night: A 20 percent chance of showers and thunderstorms after 1am.  Partly cloudy, with a low around 72. North northeast wind around 5 mph.

    Low: 72 °F

    Mostly Clear
    then Slight
    Chance
    T-storms

  • Tuesday

    Tuesday: Mostly sunny, with a high near 93. North northeast wind around 10 mph.

    High: 93 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 70. Northeast wind around 10 mph.

    Low: 70 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 92. East wind around 10 mph.

    High: 92 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 68. East northeast wind 5 to 10 mph.

    Low: 68 °F

    Partly Cloudy

Detailed Forecast

Overnight
Partly cloudy, with a low around 76. South wind around 10 mph.
Sunday
Mostly sunny, with a high near 96. Heat index values as high as 101. South wind around 10 mph.
Sunday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 71. West wind around 5 mph becoming east after midnight.
Monday
A 40 percent chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 93. Heat index values as high as 101. East northeast wind around 5 mph becoming west northwest in the afternoon.
Monday Night
A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 72. North northeast wind around 5 mph.
Tuesday
Mostly sunny, with a high near 93. North northeast wind around 10 mph.
Tuesday Night
Partly cloudy, with a low around 70. Northeast wind around 10 mph.
Wednesday
Mostly sunny, with a high near 92. East wind around 10 mph.
Wednesday Night
Partly cloudy, with a low around 68. East northeast wind 5 to 10 mph.
Thursday
Mostly sunny, with a high near 92.
Thursday Night
Partly cloudy, with a low around 68.
Friday
Mostly sunny, with a high near 89.
Friday Night
A 20 percent chance of showers. Mostly cloudy, with a low around 68.
Saturday
A 20 percent chance of showers. Partly sunny, with a high near 88.
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ABOUT THIS FORECAST

 
Point Forecast:
McKinney TX
 33.19°N 96.62°W (Elev. 587 ft)
1:26 am CDT Sep 20, 2026
3am CDT Sep 20, 2026-6pm CDT Sep 26, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database