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

75°F

24°C

Humidity 62%
Wind Speed S 17 G 30 mph
Barometer 30.01 in (1016.1 mb)
Dewpoint 61°F (16°C)
Visibility 10.00 mi
Last update 31 Mar 10:53 am CDT
Extended Forecast for

Prosper TX

  • Today

    Today: Mostly sunny, with a high near 86. South wind around 20 mph, with gusts as high as 30 mph.

    High: 86 °F

    Mostly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 66. South wind around 15 mph, with gusts as high as 25 mph.

    Low: 66 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 85. South wind 15 to 20 mph, with gusts as high as 30 mph.

    High: 85 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Showers and thunderstorms, mainly after 1am. Low around 64. South wind around 20 mph, with gusts as high as 30 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 64 °F

    Chance
    T-storms then
    T-storms

  • Thursday

    Thursday: Showers and thunderstorms likely, mainly before 1pm. Partly sunny, with a high near 82. South southwest wind 15 to 20 mph, with gusts as high as 25 mph. Chance of precipitation is 60%.

    High: 82 °F

    T-storms
    Likely

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 66. South wind around 15 mph, with gusts as high as 20 mph.

    Low: 66 °F

    Partly Cloudy

  • Friday

    Friday: A 30 percent chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 82. South wind 15 to 20 mph, with gusts as high as 25 mph.

    High: 82 °F

    Mostly Cloudy
    then Chance
    T-storms

  • Friday Night

    Friday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 58. South wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 60%.

    Low: 58 °F

    Chance
    T-storms then
    Showers
    Likely

  • Saturday

    Saturday: Showers likely and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 69. South wind around 20 mph becoming north in the afternoon. Winds could gust as high as 30 mph. Chance of precipitation is 70%.

    High: 69 °F

    Showers
    Likely

Detailed Forecast

Today
Mostly sunny, with a high near 86. South wind around 20 mph, with gusts as high as 30 mph.
Tonight
Partly cloudy, with a low around 66. South wind around 15 mph, with gusts as high as 25 mph.
Wednesday
Partly sunny, with a high near 85. South wind 15 to 20 mph, with gusts as high as 30 mph.
Wednesday Night
Showers and thunderstorms, mainly after 1am. Low around 64. South wind around 20 mph, with gusts as high as 30 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.
Thursday
Showers and thunderstorms likely, mainly before 1pm. Partly sunny, with a high near 82. South southwest wind 15 to 20 mph, with gusts as high as 25 mph. Chance of precipitation is 60%.
Thursday Night
Partly cloudy, with a low around 66. South wind around 15 mph, with gusts as high as 20 mph.
Friday
A 30 percent chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 82. South wind 15 to 20 mph, with gusts as high as 25 mph.
Friday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 58. South wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 60%.
Saturday
Showers likely and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 69. South wind around 20 mph becoming north in the afternoon. Winds could gust as high as 30 mph. Chance of precipitation is 70%.
Saturday Night
A 40 percent chance of showers, mainly before 1am. Mostly cloudy, with a low around 46.
Sunday
A 20 percent chance of showers. Mostly sunny, with a high near 66.
Sunday Night
A 20 percent chance of showers. Partly cloudy, with a low around 45.
Monday
Sunny, with a high near 69.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Prosper TX
 33.25°N 96.78°W (Elev. 732 ft)
Last Update:
6:11 am CDT Mar 31, 2026
Forecast Valid:
11am CDT Mar 31, 2026-6pm CDT Apr 6, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation