Weather forecast for: Van Alstyne TX
Last Update: 6:06 am CDT Sep 16, 2026
Today: Sunny and hot, with a high near 99. Heat index values as high as 102. South southeast wind 5 to 10 mph.
Tonight: Mostly clear, with a low around 76. Southeast wind 5 to 10 mph.
Thursday: Mostly sunny and hot, with a high near 99. Heat index values as high as 103. Southeast wind around 5 mph.
Thursday Night: Partly cloudy, with a low around 76. Southeast wind around 5 mph.
Friday: Sunny, with a high near 97. Light south wind increasing to 5 to 10 mph in the morning.
Friday Night: Mostly clear, with a low around 75. South southeast wind around 5 mph.
Saturday: Sunny, with a high near 97. South southwest wind 5 to 10 mph.
Saturday Night: Clear, with a low around 74. South wind 5 to 10 mph.
Sunday: Sunny, with a high near 97. South southwest wind around 10 mph.
Sunday Night: A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 74.
Monday: A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 93.
Monday Night: A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 70.
Tuesday: A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 91.