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

64°F

18°C

Humidity 48%
Wind Speed SE 13 mph
Barometer 30.30 in (1026.6 mb)
Dewpoint 44°F (7°C)
Visibility 10.00 mi
Last update 20 Apr 10:53 am CDT
Extended Forecast for

4 Miles W Van Alstyne TX

  • Today

    Today: Partly sunny, with a high near 73. South wind around 10 mph.

    High: 73 °F

    Partly Sunny

  • Tonight

    Tonight: Showers likely and possibly a thunderstorm, mainly after 4am. Mostly cloudy, with a low around 54. South wind around 5 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 54 °F

    Mostly Cloudy
    then Showers
    Likely

  • Tuesday

    Tuesday: Showers likely and possibly a thunderstorm before 10am, then a chance of showers and thunderstorms, mainly between 10am and 4pm. Cloudy, with a high near 62. South wind 5 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

    High: 62 °F

    Showers
    Likely

  • Tuesday Night

    Tuesday Night: A slight chance of showers and thunderstorms, then a chance of showers after 10pm. Cloudy, with a low around 57. South southeast wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.

    Low: 57 °F

    Slight Chance
    T-storms then
    Chance
    Showers

  • Wednesday

    Wednesday: A slight chance of showers, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 75. South southeast wind 5 to 15 mph. Chance of precipitation is 20%.

    High: 75 °F

    Slight Chance
    Showers then
    Slight Chance
    T-storms

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 65. South southeast wind around 10 mph, with gusts as high as 20 mph.

    Low: 65 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly cloudy, with a high near 78. South wind 15 to 20 mph, with gusts as high as 30 mph.

    High: 78 °F

    Mostly Cloudy

  • Thursday Night

    Thursday Night: A 20 percent chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 67. South wind around 15 mph, with gusts as high as 25 mph.

    Low: 67 °F

    Slight Chance
    T-storms

  • Friday

    Friday: Partly sunny, with a high near 85. South wind around 15 mph, with gusts as high as 25 mph.

    High: 85 °F

    Partly Sunny

Detailed Forecast

Today
Partly sunny, with a high near 73. South wind around 10 mph.
Tonight
Showers likely and possibly a thunderstorm, mainly after 4am. Mostly cloudy, with a low around 54. South wind around 5 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tuesday
Showers likely and possibly a thunderstorm before 10am, then a chance of showers and thunderstorms, mainly between 10am and 4pm. Cloudy, with a high near 62. South wind 5 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Tuesday Night
A slight chance of showers and thunderstorms, then a chance of showers after 10pm. Cloudy, with a low around 57. South southeast wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.
Wednesday
A slight chance of showers, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 75. South southeast wind 5 to 15 mph. Chance of precipitation is 20%.
Wednesday Night
Mostly cloudy, with a low around 65. South southeast wind around 10 mph, with gusts as high as 20 mph.
Thursday
Mostly cloudy, with a high near 78. South wind 15 to 20 mph, with gusts as high as 30 mph.
Thursday Night
A 20 percent chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 67. South wind around 15 mph, with gusts as high as 25 mph.
Friday
Partly sunny, with a high near 85. South wind around 15 mph, with gusts as high as 25 mph.
Friday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 60.
Saturday
A 20 percent chance of showers and thunderstorms. Partly sunny, with a high near 81.
Saturday Night
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 62.
Sunday
A 20 percent chance of showers and thunderstorms. Partly sunny, with a high near 80.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles W Van Alstyne TX
 33.41°N 96.65°W (Elev. 699 ft)
Last Update:
10:51 am CDT Apr 20, 2026
Forecast Valid:
11am CDT Apr 20, 2026-6pm CDT Apr 26, 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