Back to Weather

5-day forecast / Van Alstyne, TX

TodayMostly Clear0° / 77° 2%
SaturdaySunny95° / 76° 2%
SundaySunny96° / 77°
MondaySunny95° / 77°
TuesdaySunny97° / 78°

Van Alstyne Heat Index Hits 99F Tonight; Sunny 95F Tomorrow

Van Alstyne weather, updated every four hours — local forecasts you can trust.

Van Alstyne faces a hot evening with a 99F heat index and gusty winds. Tomorrow brings sunny skies and a high near 95F with a heat index up to 101F.

Marlene Ortiz

June 27, 20261 min read

National Weather Service radar for North Texas (KFWS)
National Weather Service radar for North Texas (KFWS)

Current Conditions and Heat

Van Alstyne is experiencing very hot conditions this evening, with the air temperature at 91F and a feels-like temperature of 99F. The atmosphere is quite humid, with a dew point of 72F and relative humidity at 53%. Winds are blowing from the south at 16 mph, with gusts reaching 30 mph. The sky remains clear as the day winds down.

Tonight and Tomorrow Forecast

Tonight, skies will be partly cloudy with a low near 77F. Temperatures will rise to around 79F during the overnight hours, keeping the heat index values as high as 97. South winds will continue around 15 mph, with gusts as high as 25 mph. The chance of precipitation is minimal at 1%.

Tomorrow, the sun will shine with a high near 95F. The heat index is expected to reach as high as 101F. Winds will shift to the south southwest at 15 to 20 mph, with gusts up to 30 mph. The chance of rain is slight at 2%. Tomorrow night will be mostly clear with a low around 76F. Temperatures will rise to around 78F overnight, with heat index values as high as 99. South winds will persist at 15 to 20 mph, with gusts as high as 30 mph.

Safety Reminder

With heat index values climbing into the upper 90s and near 100F, it is crucial to stay hydrated and limit prolonged outdoor exertion, especially during the hottest parts of the day. Wear lightweight, light-colored clothing and seek air-conditioned environments when possible. Check on elderly neighbors and those without reliable cooling, as high heat can pose serious health risks. Keep an eye on local updates for any changes in conditions.

National Weather Service radar for North Texas (KFWS)
National Weather Service radar for North Texas (KFWS)

Sources

https://radar.weather.gov

https://api.weather.gov

https://open-meteo.com

Share

Marlene Ortiz

Marlene Ortiz covers weather, storms, and seasonal life across Van Alstyne and Grayson County.

Related Stories

Weather

Van Alstyne Heat Index Hits 100 as Winds Pick Up

Temperatures in Van Alstyne are climbing toward 92 degrees with a heat index reaching 100. Humidity and strong south winds are making conditions feel significantly hotter this afternoon.

Marlene OrtizJune 26, 20262 min read