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5-day forecast / Van Alstyne, TX

WednesdayMostly Sunny99° / 77° 1%
ThursdaySunny100° / 78° 4%
FridayMostly Sunny101° / 78° 2%
SaturdaySunny95° / 74° 11%
SundaySunny94° / 74° 2%

Heat Advisory in Effect for Van Alstyne as Temperatures Climb Near 100 - Jul 29, 10 AM

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

A Heat Advisory is active for Van Alstyne, TX. Current conditions show a heat index of 96F with highs near 100F today and tomorrow. Residents are urged to stay cool.

Marlene Ortiz

July 29, 20262 min read

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

*As of Jul 29, 10 AM local time.*

Active Alert and Current Conditions

A Heat Advisory is currently in effect for Van Alstyne, Texas, signaling dangerous heat levels that require caution. As of this Wednesday morning, the air temperature stands at 90F with a feels-like reading of 96F. The atmosphere is quite humid, with a dew point of 72F and relative humidity at 56%.

Winds are light, blowing from the south southwest at 6 mph with gusts reaching 9 mph under clear skies.

Forecast for Today and Tomorrow

The National Weather Service indicates that heat will persist through the next two days. Today is expected to be mostly sunny with a high near 100F. The heat index is forecast to reach as high as 106F during the day.

Overnight tonight, skies will clear up, allowing temperatures to drop to a low around 79F, though they may rise slightly to about 81F later in the night. The heat index will remain elevated at 104F even after sunset.

Tomorrow brings similar conditions with mostly sunny skies and a high near 100F. The heat index is projected to peak at 108F, making it feel significantly hotter than the actual air temperature. Winds will shift to the south at 5 to 10 mph. Following tomorrow, temperatures are expected to settle to a low around 80F with mostly clear skies and a heat index of 105F.

Safety Reminders

Given the active Heat Advisory and the high heat indices forecasted for today and tomorrow, it is critical to prioritize safety. Stay hydrated by drinking plenty of water throughout the day, even if you do not feel thirsty. Limit outdoor exertion, especially during the midday hours when the sun is strongest.

If you must be outside, seek air-conditioned spaces frequently and check on neighbors or elderly relatives who may be vulnerable to heat-related illnesses. Wear lightweight, light-colored clothing and apply sunscreen if spending time outdoors.

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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