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Hazardous Weather Conditions

Current conditions at

McKinney - McKinney National Airport (KTKI)

Lat: 33.18°NLon: 96.59°WElev: 584ft.

Fair

80°F

27°C

Humidity 62%
Wind Speed Calm
Barometer 29.92 in (1012.4 mb)
Dewpoint 66°F (19°C)
Visibility 10.00 mi
Heat Index82°F (28°C)
Last update 27 Sep 11:53 pm CDT
Extended Forecast for

Prosper TX

  • Overnight

    Overnight: A chance of showers and thunderstorms before 4am, then a slight chance of showers. Partly cloudy, with a low around 72. East wind around 5 mph. Chance of precipitation is 30%.

    Low: 72 °F

    Chance
    T-storms

  • Monday

    Monday: A chance of showers, with thunderstorms also possible after 1pm. Mostly sunny, with a high near 91. Heat index values as high as 97. Southeast wind 5 to 10 mph. Chance of precipitation is 30%.

    High: 91 °F

    Chance
    Showers

  • Monday Night

    Monday Night: Mostly clear, with a low around 73. East southeast wind around 10 mph.

    Low: 73 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 94. Heat index values as high as 100. South southeast wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 94 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 73. South southeast wind around 15 mph, with gusts as high as 20 mph.

    Low: 73 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A chance of showers, then showers likely and possibly a thunderstorm after 1pm. Some of the storms could produce heavy rainfall. Mostly cloudy, with a high near 90. South wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 60%.

    High: 90 °F

    Heavy Rain

  • Wednesday Night

    Wednesday Night: Showers and possibly a thunderstorm. Some of the storms could produce heavy rainfall. Low around 72. South southeast wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 80%.

    Low: 72 °F

    Heavy Rain

  • Thursday

    Thursday: Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 83. South wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 70%.

    High: 83 °F

    Showers
    Likely

  • Thursday Night

    Thursday Night: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 68. East southeast wind 5 to 10 mph becoming north northeast after midnight.

    Low: 68 °F

    Chance
    T-storms

Detailed Forecast

Overnight
A chance of showers and thunderstorms before 4am, then a slight chance of showers. Partly cloudy, with a low around 72. East wind around 5 mph. Chance of precipitation is 30%.
Monday
A chance of showers, with thunderstorms also possible after 1pm. Mostly sunny, with a high near 91. Heat index values as high as 97. Southeast wind 5 to 10 mph. Chance of precipitation is 30%.
Monday Night
Mostly clear, with a low around 73. East southeast wind around 10 mph.
Tuesday
Mostly sunny, with a high near 94. Heat index values as high as 100. South southeast wind 10 to 15 mph, with gusts as high as 25 mph.
Tuesday Night
Mostly cloudy, with a low around 73. South southeast wind around 15 mph, with gusts as high as 20 mph.
Wednesday
A chance of showers, then showers likely and possibly a thunderstorm after 1pm. Some of the storms could produce heavy rainfall. Mostly cloudy, with a high near 90. South wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 60%.
Wednesday Night
Showers and possibly a thunderstorm. Some of the storms could produce heavy rainfall. Low around 72. South southeast wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 80%.
Thursday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 83. South wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 70%.
Thursday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 68. East southeast wind 5 to 10 mph becoming north northeast after midnight.
Friday
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 77.
Friday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 63.
Saturday
A 40 percent chance of showers. Partly sunny, with a high near 76.
Saturday Night
A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 63.
Sunday
A 30 percent chance of showers. Mostly sunny, with a high near 78.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Prosper TX
 33.23°N 96.78°W (Elev. 748 ft)
Last Update:
6:06 pm CDT Sep 27, 2026
Forecast Valid:
12am CDT Sep 28, 2026-6pm CDT Oct 4, 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