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.

N/A

Humidity NA
Wind Speed NA
Barometer NA
Dewpoint N/A
Visibility NA
Last update *** Not a current observation ***
Extended Forecast for

4 Miles ENE Van Alstyne TX

  • Overnight

    Overnight: Partly cloudy, with a low around 71. South wind around 15 mph, with gusts as high as 25 mph.

    Low: 71 °F

    Partly Cloudy

  • Sunday

    Sunday: A slight chance of showers and thunderstorms before 10am, then a slight chance of showers and thunderstorms after 4pm. Partly sunny, with a high near 88. South wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 20%.

    High: 88 °F

    Slight Chance
    T-storms

  • Sunday Night

    Sunday Night: A 20 percent chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 74. South wind 15 to 20 mph, with gusts as high as 30 mph.

    Low: 74 °F

    Slight Chance
    T-storms

  • Monday

    Monday: A 30 percent chance of showers and thunderstorms after 1pm. Cloudy, then gradually becoming mostly sunny, with a high near 88. Breezy, with a south wind 20 to 25 mph, with gusts as high as 35 mph.

    High: 88 °F

    Breezy.
    Mostly Cloudy
    then Chance
    T-storms

  • Monday Night

    Monday Night: A 20 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 73. South southeast wind 15 to 20 mph, with gusts as high as 30 mph.

    Low: 73 °F

    Slight Chance
    T-storms

  • Tuesday

    Tuesday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 85. South wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 70%.

    High: 85 °F

    Chance
    T-storms then
    Showers
    Likely

  • Tuesday Night

    Tuesday Night: Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 66. Southeast wind 5 to 10 mph becoming north northeast after midnight. Chance of precipitation is 70%.

    Low: 66 °F

    Showers
    Likely

  • Wednesday

    Wednesday: Showers likely and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 77. Northeast wind around 10 mph. Chance of precipitation is 60%.

    High: 77 °F

    Showers
    Likely

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 64. East northeast wind 5 to 10 mph. Chance of precipitation is 60%.

    Low: 64 °F

    Chance
    T-storms then
    Showers
    Likely

Detailed Forecast

Overnight
Partly cloudy, with a low around 71. South wind around 15 mph, with gusts as high as 25 mph.
Sunday
A slight chance of showers and thunderstorms before 10am, then a slight chance of showers and thunderstorms after 4pm. Partly sunny, with a high near 88. South wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 20%.
Sunday Night
A 20 percent chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 74. South wind 15 to 20 mph, with gusts as high as 30 mph.
Monday
A 30 percent chance of showers and thunderstorms after 1pm. Cloudy, then gradually becoming mostly sunny, with a high near 88. Breezy, with a south wind 20 to 25 mph, with gusts as high as 35 mph.
Monday Night
A 20 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 73. South southeast wind 15 to 20 mph, with gusts as high as 30 mph.
Tuesday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 85. South wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 70%.
Tuesday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 66. Southeast wind 5 to 10 mph becoming north northeast after midnight. Chance of precipitation is 70%.
Wednesday
Showers likely and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 77. Northeast wind around 10 mph. Chance of precipitation is 60%.
Wednesday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 64. East northeast wind 5 to 10 mph. Chance of precipitation is 60%.
Thursday
Showers likely and possibly a thunderstorm. Cloudy, with a high near 76. Chance of precipitation is 70%.
Thursday Night
Showers and thunderstorms likely. Mostly cloudy, with a low around 62. Chance of precipitation is 60%.
Friday
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 76.
Friday Night
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 62.
Saturday
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 79.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles ENE Van Alstyne TX
 33.44°N 96.52°W (Elev. 656 ft)
Last Update:
12:46 am CDT May 17, 2026
Forecast Valid:
1am CDT May 17, 2026-6pm CDT May 23, 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