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.

Fair

66°F

19°C

Humidity 50%
Wind Speed SE 8 mph
Barometer 30.03 in (1017.7 mb)
Dewpoint 47°F (8°C)
Visibility 10.00 mi
Last update 12 Feb 5:53 pm CST
Extended Forecast for

Prosper TX

  • Tonight

    Tonight: Mostly clear, with a low around 54. Southeast wind 5 to 10 mph.

    Low: 54 °F

    Mostly Clear

  • Friday

    Friday: A 20 percent chance of showers after noon. Partly sunny, with a high near 78. South southeast wind 5 to 15 mph.

    High: 78 °F

    Partly Sunny
    then Slight
    Chance
    Showers

  • Friday Night

    Friday Night: Showers likely, mainly after midnight. Mostly cloudy, with a low around 62. South southeast wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 62 °F

    Slight Chance
    Showers then
    Showers
    Likely

  • Saturday

    Saturday: Showers and possibly a thunderstorm. High near 68. South wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.

    High: 68 °F

    Showers

  • Saturday Night

    Saturday Night: Showers likely and possibly a thunderstorm before midnight, then a chance of showers and thunderstorms between midnight and 3am, then a chance of showers after 3am. Mostly cloudy, with a low around 53. Southwest wind 10 to 15 mph becoming north northwest after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 70%.

    Low: 53 °F

    Showers
    Likely then
    Chance
    Showers

  • Sunday

    Sunday: Mostly sunny, with a high near 65. North northwest wind 10 to 20 mph, with gusts as high as 25 mph.

    High: 65 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 45. North wind 5 to 10 mph becoming east after midnight.

    Low: 45 °F

    Mostly Clear

  • Washington's Birthday

    Washington's Birthday: Sunny, with a high near 71. East southeast wind 5 to 10 mph becoming south in the morning.

    High: 71 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 53. South southeast wind around 10 mph, with gusts as high as 20 mph.

    Low: 53 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 54. Southeast wind 5 to 10 mph.
Friday
A 20 percent chance of showers after noon. Partly sunny, with a high near 78. South southeast wind 5 to 15 mph.
Friday Night
Showers likely, mainly after midnight. Mostly cloudy, with a low around 62. South southeast wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Saturday
Showers and possibly a thunderstorm. High near 68. South wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.
Saturday Night
Showers likely and possibly a thunderstorm before midnight, then a chance of showers and thunderstorms between midnight and 3am, then a chance of showers after 3am. Mostly cloudy, with a low around 53. Southwest wind 10 to 15 mph becoming north northwest after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 70%.
Sunday
Mostly sunny, with a high near 65. North northwest wind 10 to 20 mph, with gusts as high as 25 mph.
Sunday Night
Mostly clear, with a low around 45. North wind 5 to 10 mph becoming east after midnight.
Washington's Birthday
Sunny, with a high near 71. East southeast wind 5 to 10 mph becoming south in the morning.
Monday Night
Partly cloudy, with a low around 53. South southeast wind around 10 mph, with gusts as high as 20 mph.
Tuesday
Partly sunny, with a high near 77.
Tuesday Night
Mostly cloudy, with a low around 58.
Wednesday
Partly sunny, with a high near 79.
Wednesday Night
Partly cloudy, with a low around 53.
Thursday
Mostly sunny, with a high near 75.
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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:
5:06 pm CST Feb 12, 2026
Forecast Valid:
6pm CST Feb 12, 2026-6pm CST Feb 19, 2026
 
Forecast Discussion
 
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Additional Resources

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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