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5-day forecast / Van Alstyne, TX

MondaySunny103° / 78° 2%
TuesdaySunny101° / 79°
WednesdaySunny101° / 78° 1%
ThursdaySunny101° / 77° 7%
FridaySunny99° / 75° 7%

Heat Advisory in Effect for Van Alstyne as Temperatures Climb Near 100 - Aug 15, 5 AM

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

A Heat Advisory is active for Van Alstyne, TX, with current feels-like temperatures at 101F. Highs near 99F today and 100F tomorrow require caution.

Marlene Ortiz

August 15, 20262 min read

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

*As of Aug 15, 5 AM local time.*

Dangerous Heat Conditions Underway

Van Alstyne, TX, is currently under an active Heat Advisory issued by the National Weather Service. The advisory carries a moderate severity rating and is expected to remain in effect until August 15 at 8:00PM CDT. This alert underscores the significant heat risk facing the community over the next several days.

Current conditions reflect the intensity of this event. At this moment, the air temperature stands at 97F, but the combination of heat and humidity pushes the feels-like temperature to a dangerous 101F. The relative humidity is at 37%, with a dew point of 66F. Winds are blowing from the south at 11 mph, with gusts reaching up to 24 mph, under a clear sky.

Forecast for Today and Tomorrow

Today will be sunny with a high near 99F. The National Weather Service indicates heat index values could reach as high as 106 during the peak of the day. South southwest winds are expected around 10 mph. There is only a 1% chance of precipitation, so residents should expect dry conditions.

Tonight, skies will become mostly clear. Temperatures will drop to a low near 78F, though they may rise slightly to around 80F overnight. Heat index values are forecast to remain elevated at up to 104. South winds will persist around 10 mph.

Tomorrow brings another sunny day with a high near 100F. The heat index is expected to hit 103. Winds will shift slightly to the south southwest, ranging from 5 to 10 mph. Precipitation chances drop to 0%. Tonight tomorrow night will be mostly clear with a low around 77F and winds around 5 mph.

Safety Reminders

Given the active Heat Advisory and feels-like temperatures exceeding 100F, it is critical to prioritize safety. Stay hydrated by drinking water frequently, even if you do not feel thirsty. Limit outdoor exertion, especially during midday hours when the sun is strongest.

Check on elderly neighbors or those without air conditioning to ensure they are safe. If you must be outside, seek shade and wear lightweight, light-colored clothing to help manage the heat stress.

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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