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5-day forecast / Van Alstyne, TX

TodayMostly Sunny91° / 75° 6%
ThursdaySunny91° / 76° 2%
FridayMostly Sunny93° / 77°
SaturdayMostly Sunny95° / 77° 1%
SundaySunny96° / 78°

Humidity Peaks in Van Alstyne as Heat Index Climbs

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

Oppressive humidity lingers in Van Alstyne with a dew point of 75F. Temperatures will reach 91F today and tomorrow, with heat index values nearing 100F.

Marlene Ortiz

June 24, 20262 min read

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

Current Conditions and Humidity

Residents in Van Alstyne are currently experiencing oppressively humid air. The dew point has reached 75F, contributing to a relative humidity of 89%. The current air temperature stands at 79F, but the combination of heat and moisture makes it feel like 82F. Winds are light, blowing at 7 mph with gusts reaching 14 mph, under a clear sky.

Today and Tonight Forecast

Conditions will remain warm and humid through the day. The high near 91F is expected, with heat index values climbing as high as 100. This significant heat index indicates that the air feels much hotter than the actual temperature, increasing the risk of heat-related illnesses. Skies will be mostly sunny with a low chance of precipitation at 6%. Winds will shift to the south southwest, averaging around 10 mph.

As evening approaches, the sky will become mostly clear. Temperatures will drop to a low around 75F, though they may rise slightly to around 77F overnight. The heat index will remain elevated, staying as high as 98. Winds will continue from the south southeast at 5 to 10 mph. The chance of rain is minimal, allowing for clear skies to dominate the night.

Tomorrow Outlook

The pattern continues into tomorrow with sunny skies and high humidity. The high will again be near 91F. Winds will pick up slightly, coming from the south at 10 to 15 mph, with gusts as high as 25 mph. The chance of precipitation drops to just 2%. Overnight, skies will turn partly cloudy with a low around 76F, and temperatures may rise to around 78F during the night. South winds will persist around 15 mph, with gusts reaching 25 mph.

Safety Reminder

With heat index values nearing 100F, it is crucial to stay hydrated and limit midday exertion. Check on neighbors, especially the elderly, to ensure they are safe in the heat. Avoid prolonged exposure to the sun and seek air-conditioned environments when possible.

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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