Van Alstyne Weather Forecast
- 48
- 71
Mostly Sunny
- 54
- 72
Slight Chance Thunderstorms
- 58
- 65
Mostly Cloudy
- 64
- 74
Mostly Cloudy
- 66
- 79
Slight Chance Thunderstorms
- 57
- 82
Chance Thunderstorms
Today 19 Apr Grayson
Sunny. Highs in the lower 70s. Southeast Winds around 5 Mph.
Tonight 19 Apr Grayson
Mostly clear in the Evening, then becoming partly cloudy. Lows in the upper 40s. Southeast Winds around 5 Mph.
Van Alstyne Temperature Statistics
April Temperature
McKinney - McKinney National Airport (16.8 miles)
Lowest 6 April, 2026
43.6 °FAverage April
69.8 °FHighest 1 April, 2026
85.6 °F
Climate (2021–Present)
McKinney - McKinney National Airport (16.8 miles)
Average Low 2021–2026
56.4 °FAverage 2021–2026
67.1 °FAverage High 2021–2026
78.1 °F