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

45°F

7°C

Humidity 71%
Wind Speed Calm
Barometer 30.02 in (1016.9 mb)
Dewpoint 36°F (2°C)
Visibility 10.00 mi
Last update 27 Feb 6:53 am CST
Extended Forecast for

Van Alstyne TX

  • Today

    Today: Sunny, with a high near 77. Calm wind becoming east southeast around 5 mph in the afternoon.

    High: 77 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 55. Southeast wind around 5 mph.

    Low: 55 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 81. South wind 10 to 15 mph, with gusts as high as 20 mph.

    High: 81 °F

    Sunny

  • Saturday Night

    Saturday Night: A 20 percent chance of showers and thunderstorms after midnight. Increasing clouds, with a low around 59. South southeast wind around 10 mph.

    Low: 59 °F

    Partly Cloudy
    then Slight
    Chance
    T-storms

  • Sunday

    Sunday: A 20 percent chance of showers before noon. Mostly sunny, with a high near 79. South wind 10 to 20 mph, with gusts as high as 25 mph.

    High: 79 °F

    Slight Chance
    Showers then
    Sunny

  • Sunday Night

    Sunday Night: A slight chance of showers, then a chance of showers and thunderstorms after 9pm. Partly cloudy, with a low around 55. South southeast wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.

    Low: 55 °F

    Slight Chance
    T-storms then
    Chance
    Showers

  • Monday

    Monday: Partly sunny, with a high near 68. South southeast wind 10 to 15 mph, with gusts as high as 20 mph.

    High: 68 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 55. South southeast wind around 10 mph, with gusts as high as 20 mph.

    Low: 55 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 76. South wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 76 °F

    Mostly Cloudy

Detailed Forecast

Today
Sunny, with a high near 77. Calm wind becoming east southeast around 5 mph in the afternoon.
Tonight
Mostly clear, with a low around 55. Southeast wind around 5 mph.
Saturday
Sunny, with a high near 81. South wind 10 to 15 mph, with gusts as high as 20 mph.
Saturday Night
A 20 percent chance of showers and thunderstorms after midnight. Increasing clouds, with a low around 59. South southeast wind around 10 mph.
Sunday
A 20 percent chance of showers before noon. Mostly sunny, with a high near 79. South wind 10 to 20 mph, with gusts as high as 25 mph.
Sunday Night
A slight chance of showers, then a chance of showers and thunderstorms after 9pm. Partly cloudy, with a low around 55. South southeast wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.
Monday
Partly sunny, with a high near 68. South southeast wind 10 to 15 mph, with gusts as high as 20 mph.
Monday Night
Mostly cloudy, with a low around 55. South southeast wind around 10 mph, with gusts as high as 20 mph.
Tuesday
Mostly cloudy, with a high near 76. South wind 10 to 15 mph, with gusts as high as 25 mph.
Tuesday Night
A 40 percent chance of showers and thunderstorms, mainly after midnight. Mostly cloudy, with a low around 61.
Wednesday
Showers likely and possibly a thunderstorm. Cloudy, with a high near 73. Chance of precipitation is 60%.
Wednesday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 60. Chance of precipitation is 70%.
Thursday
Showers likely. Mostly cloudy, with a high near 74. Chance of precipitation is 60%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Van Alstyne TX
 33.42°N 96.57°W (Elev. 761 ft)
Last Update:
5:12 am CST Feb 27, 2026
Forecast Valid:
7am CST Feb 27, 2026-6pm CST Mar 5, 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