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5-day forecast / Van Alstyne, TX

TodaySunny95° / 77°
MondaySunny97° / 74°
TuesdaySunny95° / 77°
WednesdaySunny96° / 76°
ThursdaySunny96° / 77° 1%

Dangerous Heat Index Hits 103 in Van Alstyne as Winds Gust

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

Van Alstyne faces dangerous heat with a feels-like temperature of 103F today. Clear skies and strong south winds persist through tomorrow with no active weather alerts.

Marlene Ortiz

June 28, 20262 min read

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

Dangerous Heat and Wind Conditions

Van Alstyne is currently under the influence of dangerous heat conditions this Sunday afternoon. The air temperature stands at 95F, but the heat index makes it feel like 103F. Humidity levels are notably high for the region, with a dew point of 72F and relative humidity at 47%. Strong winds are also a factor, with south winds blowing at 22 mph and gusting up to 29 mph. The sky remains clear, offering no relief from the sun.

Forecast for Today and Tomorrow

Today, the high will reach near 95F, with the low dropping to around 77F tonight. There is a 0% chance of precipitation, and skies will stay sunny. The National Weather Service indicates heat index values as high as 103 during the day. South winds will average around 20 mph, with gusts reaching as high as 30 mph. Tonight, conditions will be mostly clear with a low around 77F. The heat index will remain elevated, with values as high as 100. South winds will continue at 15 to 20 mph, with gusts up to 30 mph.

Tomorrow, the heat will persist with a high near 97F and a low around 74F. Skies will be sunny with no rain expected. Heat index values are forecast to reach 101. South winds will blow at 15 to 20 mph, with gusts as high as 30 mph. Overnight, temperatures will drop to around 74F, rising slightly to 77F later in the night. The heat index will stay high at 100, with south winds of 10 to 20 mph and gusts up to 30 mph.

Safety Reminders

There are no active National Weather Service or NOAA weather alerts in effect for Van Alstyne. However, the extreme heat index values require caution. Residents should hydrate frequently and limit midday exertion to avoid heat-related illnesses. The strong winds may also cause blowing dust or debris, so secure loose outdoor items. Check on neighbors, especially the elderly and those with health conditions, to ensure they are safe in the heat.

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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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.

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