Current conditions at
McKinney - McKinney National Airport (KTKI)
Lat: 33.18°NLon: 96.59°WElev: 584ft.
Fair
70°F
21°C
| Humidity | 90% |
| Wind Speed | NE 3 mph |
| Barometer | 29.89 in (1012.1 mb) |
| Dewpoint | 67°F (19°C) |
| Visibility | 10.00 mi |
| Last update | 21 May 10:53 pm CDT |
Extended Forecast for
Van Alstyne TX
Tonight
Low: 66 °F
Showers
Likely and
Patchy FogFriday
High: 80 °F
Patchy Fog
then Partly
SunnyFriday Night
Low: 66 °F
Partly Cloudy
then Chance
T-stormsSaturday
High: 80 °F
Chance
T-stormsSaturday Night
Low: 64 °F
Chance
T-stormsSunday
High: 79 °F
Chance
Showers then
Chance
T-stormsSunday Night
Low: 64 °F
Partly Cloudy
Memorial Day
High: 80 °F
Chance
T-stormsMonday Night
Low: 64 °F
Chance
T-storms
Detailed Forecast
Tonight
Showers likely and possibly a thunderstorm before 1am, then a slight chance of showers and thunderstorms between 1am and 4am. Patchy fog after 3am. Otherwise, mostly cloudy, with a low around 66. Northeast wind around 5 mph becoming calm after midnight. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Friday
Patchy fog before 10am. Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 80. Calm wind becoming south southwest around 5 mph.
Friday Night
A 50 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 66. East southeast wind around 5 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday
A 40 percent chance of showers and thunderstorms, mainly after 1pm. Mostly cloudy, with a high near 80. Southeast wind around 5 mph.
Saturday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 64. East wind around 5 mph becoming calm in the evening.
Sunday
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 79. Northeast wind around 5 mph.
Sunday Night
Partly cloudy, with a low around 64. East northeast wind around 5 mph becoming calm in the evening.
Memorial Day
A 40 percent chance of showers and thunderstorms, mainly after 1pm. Partly sunny, with a high near 80. East northeast wind around 5 mph.
Monday Night
A 30 percent chance of showers and thunderstorms, mainly before 1am. Partly cloudy, with a low around 64. East northeast wind around 5 mph becoming calm in the evening.
Tuesday
A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 80.
Tuesday Night
A 50 percent chance of showers and thunderstorms. Partly cloudy, with a low around 67.
Wednesday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 80. Chance of precipitation is 70%.
Wednesday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 66.
Thursday
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 82.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
Van Alstyne TX
33.41°N 96.6°W (Elev. 755 ft)
33.41°N 96.6°W (Elev. 755 ft)
6:12 pm CDT May 21, 2026
11pm CDT May 21, 2026-6pm CDT May 28, 2026
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