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

73°F

23°C

Humidity 79%
Wind Speed S 16 mph
Barometer 29.88 in (1011.4 mb)
Dewpoint 66°F (19°C)
Visibility 10.00 mi
Last update 7 Mar 12:53 am CST
Extended Forecast for

Van Alstyne TX

  • Overnight

    Overnight: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 3am. Mostly cloudy, with a low around 56. South wind 10 to 15 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 56 °F

    Showers
    Likely

  • Saturday

    Saturday: Showers and possibly a thunderstorm, mainly before noon, then a chance of showers and thunderstorms after noon. Temperature falling to around 57 by 8am. West southwest wind 10 to 15 mph becoming north in the morning. Winds could gust as high as 25 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.

    High: 67 °F⇓

    Showers then
    Chance
    T-storms

  • Saturday Night

    Saturday Night: A 30 percent chance of showers, mainly before midnight. Cloudy, then gradually becoming partly cloudy, with a low around 47. North wind 5 to 15 mph.

    Low: 47 °F

    Chance
    Showers

  • Sunday

    Sunday: Sunny, with a high near 70. North wind around 5 mph becoming calm in the afternoon.

    High: 70 °F

    Sunny

  • Sunday Night

    Sunday Night: A 20 percent chance of showers and thunderstorms after midnight. Mostly cloudy, with a low around 58. Calm wind becoming south southwest around 5 mph after midnight.

    Low: 58 °F

    Partly Cloudy
    then Slight
    Chance
    T-storms

  • Monday

    Monday: A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 78. South southwest wind 5 to 15 mph, with gusts as high as 20 mph.

    High: 78 °F

    Chance
    T-storms

  • Monday Night

    Monday Night: A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 67. South wind 10 to 15 mph, with gusts as high as 20 mph.

    Low: 67 °F

    Slight Chance
    T-storms

  • Tuesday

    Tuesday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after noon. Cloudy, with a high near 76. South wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 70%.

    High: 76 °F

    Chance
    T-storms then
    Showers
    Likely

  • Tuesday Night

    Tuesday Night: Showers and possibly a thunderstorm. Low around 60. South wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 80%.

    Low: 60 °F

    Showers

Detailed Forecast

Overnight
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 3am. Mostly cloudy, with a low around 56. South wind 10 to 15 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday
Showers and possibly a thunderstorm, mainly before noon, then a chance of showers and thunderstorms after noon. Temperature falling to around 57 by 8am. West southwest wind 10 to 15 mph becoming north in the morning. Winds could gust as high as 25 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.
Saturday Night
A 30 percent chance of showers, mainly before midnight. Cloudy, then gradually becoming partly cloudy, with a low around 47. North wind 5 to 15 mph.
Sunday
Sunny, with a high near 70. North wind around 5 mph becoming calm in the afternoon.
Sunday Night
A 20 percent chance of showers and thunderstorms after midnight. Mostly cloudy, with a low around 58. Calm wind becoming south southwest around 5 mph after midnight.
Monday
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 78. South southwest wind 5 to 15 mph, with gusts as high as 20 mph.
Monday Night
A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 67. South wind 10 to 15 mph, with gusts as high as 20 mph.
Tuesday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after noon. Cloudy, with a high near 76. South wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 70%.
Tuesday Night
Showers and possibly a thunderstorm. Low around 60. South wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 80%.
Wednesday
A 50 percent chance of showers and thunderstorms. Mostly sunny, with a high near 69.
Wednesday Night
A 20 percent chance of showers. Mostly clear, with a low around 44.
Thursday
Sunny, with a high near 65.
Thursday Night
Clear, with a low around 46.
Friday
Sunny, with a high near 72.
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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:
12:27 am CST Mar 7, 2026
Forecast Valid:
1am CST Mar 7, 2026-6pm CDT Mar 13, 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