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.

Overcast

31°C

87°F

Humidity 50%
Wind Speed SE 15 km/h
Barometer 1014.5 mb (29.98 in)
Dewpoint 19°C (66°F)
Visibility 16 km
Heat Index32°C (89°F)
Last update 3 Jul 4:53 pm CDT
Extended Forecast for

Van Alstyne TX

  • Tonight

    Tonight: A 40 percent chance of showers and thunderstorms, mainly after 4am. Mostly cloudy, with a low around 22. Southeast wind 10 to 15 km/h decreasing to 5 to 10 km/h after midnight.

    Low: 22 °C

    Chance
    T-storms

  • Independence Day

    Independence Day: A chance of showers and thunderstorms before 4pm, then a slight chance of showers. Partly sunny, with a high near 30. South wind 10 to 15 km/h increasing to 20 to 25 km/h in the afternoon. Winds could gust as high as 35 km/h. Chance of precipitation is 40%.

    High: 30 °C

    Chance
    T-storms then
    Chance
    Showers

  • Friday Night

    Friday Night: A slight chance of showers between 1am and 4am, then a slight chance of showers and thunderstorms after 4am. Partly cloudy, with a low around 22. South southeast wind 10 to 20 km/h. Chance of precipitation is 20%.

    Low: 22 °C

    Partly Cloudy
    then Slight
    Chance
    T-storms

  • Saturday

    Saturday: A slight chance of showers and thunderstorms before 7am, then a slight chance of showers between 7am and 1pm, then a slight chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 32. Heat index values as high as 36. South wind 10 to 15 km/h. Chance of precipitation is 20%.

    High: 32 °C

    Slight Chance
    T-storms

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 23. South wind 10 to 15 km/h decreasing to 5 to 10 km/h after midnight.

    Low: 23 °C

    Partly Cloudy

  • Sunday

    Sunday: A slight chance of showers, with thunderstorms also possible after 1pm. Mostly sunny, with a high near 33. South wind 5 to 10 km/h. Chance of precipitation is 20%.

    High: 33 °C

    Slight Chance
    Showers then
    Slight Chance
    T-storms

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 23. South southeast wind 5 to 10 km/h.

    Low: 23 °C

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 34. Southwest wind 5 to 10 km/h.

    High: 34 °C

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 23. South southeast wind 5 to 10 km/h.

    Low: 23 °C

    Partly Cloudy

Detailed Forecast

Tonight
A 40 percent chance of showers and thunderstorms, mainly after 4am. Mostly cloudy, with a low around 22. Southeast wind 10 to 15 km/h decreasing to 5 to 10 km/h after midnight.
Independence Day
A chance of showers and thunderstorms before 4pm, then a slight chance of showers. Partly sunny, with a high near 30. South wind 10 to 15 km/h increasing to 20 to 25 km/h in the afternoon. Winds could gust as high as 35 km/h. Chance of precipitation is 40%.
Friday Night
A slight chance of showers between 1am and 4am, then a slight chance of showers and thunderstorms after 4am. Partly cloudy, with a low around 22. South southeast wind 10 to 20 km/h. Chance of precipitation is 20%.
Saturday
A slight chance of showers and thunderstorms before 7am, then a slight chance of showers between 7am and 1pm, then a slight chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 32. Heat index values as high as 36. South wind 10 to 15 km/h. Chance of precipitation is 20%.
Saturday Night
Partly cloudy, with a low around 23. South wind 10 to 15 km/h decreasing to 5 to 10 km/h after midnight.
Sunday
A slight chance of showers, with thunderstorms also possible after 1pm. Mostly sunny, with a high near 33. South wind 5 to 10 km/h. Chance of precipitation is 20%.
Sunday Night
Partly cloudy, with a low around 23. South southeast wind 5 to 10 km/h.
Monday
Mostly sunny, with a high near 34. Southwest wind 5 to 10 km/h.
Monday Night
Partly cloudy, with a low around 23. South southeast wind 5 to 10 km/h.
Tuesday
Mostly sunny, with a high near 35.
Tuesday Night
Mostly clear, with a low around 24.
Wednesday
Sunny, with a high near 36.
Wednesday Night
Mostly clear, with a low around 24.
Thursday
Sunny and hot, with a high near 37.
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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 m)
Last Update:
5:24 pm CDT Jul 3, 2025
Forecast Valid:
5pm CDT Jul 3, 2025-6pm CDT Jul 10, 2025
 
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