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5-day forecast / Van Alstyne, TX

TodayMostly Clear0° / 77°
MondaySunny97° / 74°
TuesdaySunny95° / 77°
WednesdaySunny96° / 76°
ThursdaySunny96° / 77° 1%

Van Alstyne Heat Index Nears 100 Degrees Tonight and Tomorrow

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

Current conditions in Van Alstyne show a heat index of 99F. Temperatures will climb near 95F today and 97F tomorrow with no rain expected.

Marlene Ortiz

June 29, 20261 min read

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

Current Conditions and Heat Index

Residents in Van Alstyne are experiencing very hot conditions this Sunday evening. The air temperature is currently 91F, but the combination of heat and moisture makes it feel like 99F. Humidity levels are quite high, with a dew point of 72F and relative humidity at 53%. Winds are blowing from the south at 17 mph, with gusts reaching up to 28 mph. The sky remains clear as the day winds down.

Forecast for Today and Tomorrow

Today, the high will reach near 95F, with a low near 77F. There is a 0% chance of precipitation, and skies will remain mostly clear. As tonight approaches, temperatures will drop to a low around 77F. The heat index will remain elevated, with values as high as 97F. South winds will persist around 15 mph, with gusts as high as 25 mph.

Tomorrow, the heat will intensify further. Expect sunny skies and a high near 97F. The heat index is forecast to reach as high as 101F. South winds will increase slightly to 15 to 20 mph, with gusts up to 30 mph. Overnight into tomorrow night, conditions will clear with a low around 74F, though temperatures may rise to around 77F later in the night. The heat index will stay high at around 100F, with south winds of 10 to 20 mph and gusts up to 30 mph.

Safety Reminders

With heat index values approaching 100 degrees, it is crucial to stay hydrated and limit midday exertion. Check on elderly neighbors and ensure pets have access to cool water and shade. Avoid prolonged exposure to the sun during peak heat hours to prevent heat-related illnesses.

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

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Marlene Ortiz

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

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