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5-day forecast / Van Alstyne, TX

TodayMostly Sunny92° / 77° 2%
SaturdaySunny95° / 76° 2%
SundaySunny96° / 77°
MondaySunny95° / 77°
TuesdaySunny97° / 78°

Van Alstyne Heat Index Hits 100 as Winds Pick Up

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

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 Ortiz

June 26, 20262 min read

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

Current Conditions and Heat Index

It is currently Friday this afternoon in Van Alstyne, TX, where the air temperature stands at 90F. However, the combination of heat and moisture is making it feel much warmer, with a feels-like temperature of 98F. The relative humidity is at 59%, supported by a dew point of 73F, indicating quite humid air. Winds are brisk from the south southwest at 18 mph, with gusts reaching 24 mph. The sky remains mostly clear overhead.

Forecast for Today and Tomorrow

Today, the high will reach near 92F, with a low near 77F. The chance of precipitation is just 8%, and skies will be mostly sunny. The National Weather Service notes that heat index values could climb as high as 100 during the day. South southwest winds will persist around 15 mph, with gusts as high as 25 mph.

Tonight, conditions will shift to mostly clear skies. Temperatures will drop to a low around 77F, though they may rise slightly to around 79F overnight. Heat index values will remain elevated, potentially hitting 100. South winds will continue around 15 mph, with gusts up to 25 mph.

Tomorrow, the heat will intensify further with a high near 95F and a low near 76F. Skies will be sunny with only a 2% chance of precipitation. Heat index values are expected to reach as high as 101. Winds will increase to south southwest at 15 to 20 mph, with gusts as high as 30 mph.

Safety and Alerts

There are no active National Weather Service or NOAA weather alerts in effect for this area. However, the combination of high temperatures and humidity poses health risks. Residents should stay hydrated and limit midday exertion to avoid heat-related illness. The strong winds may also create blowing dust or debris, so drive with caution. Check on neighbors who may be vulnerable to the heat, especially those without air conditioning.

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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