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5-day forecast / Van Alstyne, TX

SaturdayMostly Sunny94° / 76° 2%
SundaySunny97° / 77° 3%
MondaySunny99° / 79°
TuesdaySunny101° / 80° 1%
WednesdaySunny101° / 79° 1%

Van Alstyne Heat Index Nears 102 Tomorrow as Humidity Lingers - Jul 18, 12 PM

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

Van Alstyne faces very hot conditions this afternoon with a feels-like temperature of 96F. Humidity remains high with a dew point of 73F. No severe weather alerts are active.

Marlene Ortiz

July 18, 20261 min read

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

*As of Jul 18, 12 PM local time.*

Current Conditions and Heat Index

It is currently Saturday this afternoon in Van Alstyne, TX, where the air temperature stands at 88F. Due to the humidity, the feels-like temperature is 96F. The relative humidity is at 62%, with a dew point of 73F, indicating quite humid air. Winds are blowing from the south southwest at 14 mph, with gusts reaching 18 mph. The sky remains clear overhead.

Forecast for Today and Tomorrow

Today, the high will reach near 94F, with a low near 76F. The chance of precipitation is just 2%, and skies will be mostly sunny. The heat index values are expected to climb as high as 99. South southwest winds will be around 10 mph.

Tonight, conditions will shift to partly cloudy skies. The low will settle around 76, though temperatures may rise to around 78 overnight. The heat index will remain as high as 99. South southwest winds will decrease to 5 to 10 mph.

Tomorrow, the sun will be out with a high near 95F. The heat index is forecast to reach as high as 102, making it feel even hotter than the actual air temperature. South southwest winds will continue at 5 to 10 mph. The chance of precipitation remains low at 2%.

Safety and Alerts

There are no active National Weather Service or NOAA weather alerts in effect for Van Alstyne. However, the combination of high temperatures and humidity requires caution. It is advisable to hydrate frequently and limit midday exertion to avoid heat-related illness.

Check on neighbors, especially the elderly or those without air conditioning, to ensure they are safe in the heat. Stay aware of the rising heat index values, particularly tomorrow, and seek air-conditioned spaces when possible.

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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