National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

McKinney - McKinney National Airport (KTKI)

Lat: 33.18°NLon: 96.59°WElev: 584ft.

Mostly Cloudy

68°F

20°C

Humidity 81%
Wind Speed S 15 mph
Barometer 29.88 in (1011.4 mb)
Dewpoint 62°F (17°C)
Visibility 10.00 mi
Last update 6 Mar 5:53 am CST
Extended Forecast for

Prosper TX

  • Today

    Today: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after noon. Mostly cloudy, with a high near 78. South wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 78 °F

    Showers
    Likely

  • Tonight

    Tonight: Showers likely and possibly a thunderstorm before 9pm, then a chance of showers and thunderstorms between 9pm and 3am, then showers likely and possibly a thunderstorm after 3am. Mostly cloudy, with a low around 57. South wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 57 °F

    Showers
    Likely

  • Saturday

    Saturday: Showers likely and possibly a thunderstorm. Mostly cloudy, with a temperature falling to around 58 by 8am. South southwest wind 10 to 15 mph becoming north in the morning. Winds could gust as high as 20 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

    High: 66 °F⇓

    Showers
    Likely

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 49. North wind around 10 mph. Chance of precipitation is 40%.

    Low: 49 °F

    Chance
    T-storms then
    Chance
    Showers

  • Sunday

    Sunday: A 20 percent chance of showers. Partly sunny, with a high near 69. North wind 5 to 10 mph becoming south southeast in the afternoon.

    High: 69 °F

    Slight Chance
    Showers

  • Sunday Night

    Sunday Night: A slight chance of showers, then a chance of showers and thunderstorms after midnight. Mostly cloudy, with a low around 58. South wind around 5 mph. Chance of precipitation is 30%.

    Low: 58 °F

    Slight Chance
    Showers then
    Chance
    T-storms

  • Monday

    Monday: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 77. South wind 5 to 15 mph.

    High: 77 °F

    Chance
    T-storms

  • Monday Night

    Monday Night: A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 66. South wind 10 to 15 mph, with gusts as high as 20 mph.

    Low: 66 °F

    Chance
    T-storms

  • Tuesday

    Tuesday: Showers and possibly a thunderstorm. High near 76. South wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 80%.

    High: 76 °F

    Showers

Detailed Forecast

Today
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after noon. Mostly cloudy, with a high near 78. South wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tonight
Showers likely and possibly a thunderstorm before 9pm, then a chance of showers and thunderstorms between 9pm and 3am, then showers likely and possibly a thunderstorm after 3am. Mostly cloudy, with a low around 57. South wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a temperature falling to around 58 by 8am. South southwest wind 10 to 15 mph becoming north in the morning. Winds could gust as high as 20 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Saturday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 49. North wind around 10 mph. Chance of precipitation is 40%.
Sunday
A 20 percent chance of showers. Partly sunny, with a high near 69. North wind 5 to 10 mph becoming south southeast in the afternoon.
Sunday Night
A slight chance of showers, then a chance of showers and thunderstorms after midnight. Mostly cloudy, with a low around 58. South wind around 5 mph. Chance of precipitation is 30%.
Monday
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 77. South wind 5 to 15 mph.
Monday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 66. South wind 10 to 15 mph, with gusts as high as 20 mph.
Tuesday
Showers and possibly a thunderstorm. High near 76. South wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 80%.
Tuesday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 60. Chance of precipitation is 70%.
Wednesday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 74.
Wednesday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 53.
Thursday
A 20 percent chance of showers. Mostly sunny, with a high near 68.
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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:
5:17 am CST Mar 6, 2026
Forecast Valid:
6am CST Mar 6, 2026-6pm CDT Mar 12, 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