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5-day forecast / Van Alstyne, TX

ThursdayChance Showers And Thunderstorms88° / 73° 37%
FridayPartly Sunny91° / 75° 10%
SaturdaySunny93° / 76° 2%
SundaySunny94° / 77° 2%
MondaySunny97° / 77°

Humid Start in Van Alstyne: Highs Near 88, Heat Index Climbs Tomorrow - Jul 16, 4 PM

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

Van Alstyne residents face a humid Thursday with light rain and a 30% chance of storms. Temperatures will rise to 91 tomorrow with a heat index near 99.

Marlene Ortiz

July 16, 20262 min read

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

*As of Jul 16, 4 PM local time.*

Current Conditions and Humidity

The air in Van Alstyne is notably heavy with moisture this afternoon. Current readings show an air temperature of 82F, but the heat index makes it feel like 88F. Relative humidity sits at 74%, with a dew point of 73F indicating significant atmospheric saturation.

Winds are blowing from the south at 8 mph, with gusts reaching 17 mph. Overhead, the sky is currently producing light rain.

Forecast for Today and Tonight

The National Weather Service indicates that today will remain mostly cloudy with a high near 88F. Temperatures are expected to dip slightly to around 86F during the afternoon hours. There is a 30% chance of showers and thunderstorms today. Any new rainfall amounts are expected to be less than a tenth of an inch.

Tonight, conditions will stay mostly cloudy with a low around 73F. Temperatures may rise to around 75F overnight. The chance of precipitation remains at 30%, with showers and thunderstorms possible before 7pm. Winds will continue from the south at 5 to 10 mph. As always, staying hydrated is essential given the persistent humidity levels.

Tomorrow’s Outlook

Looking ahead, Van Alstyne will see a shift in conditions. Tomorrow will be partly sunny with a high near 91F. The heat index is forecast to reach as high as 99, signaling intense heat stress potential. Winds will persist from the south at 5 to 10 mph, with gusts as high as 20 mph. The chance of precipitation drops to 10% for the day.

Tomorrow night will bring partly cloudy skies with a low around 75F. Temperatures may rise to around 77F overnight. Winds will remain from the south at 5 to 10 mph. Residents should monitor the rising heat index values and limit midday exertion to avoid heat-related illness. There are currently no active National Weather Service or NOAA weather alerts in effect for this area.

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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