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5-day forecast / Van Alstyne, TX

SaturdaySunny97° / 79° 1%
SundaySunny100° / 78° 1%
MondaySunny100° / 79°
TuesdaySunny101° / 80° 1%
WednesdaySunny101° / 81°

Heat Advisory in Effect for Van Alstyne as Temperatures Climb Toward 100 - Jul 25, 12 PM

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

A Heat Advisory is active for Van Alstyne, TX, with heat index values reaching up to 109 degrees. Current conditions show 91F with clear skies.

Marlene Ortiz

July 25, 20262 min read

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

*As of Jul 25, 12 PM local time.*

Current Conditions and Alert Status

A Heat Advisory is currently in effect for Van Alstyne, Texas, signaling dangerous heat levels that require caution. The National Weather Service has issued this moderate severity alert due to expected high temperatures and heat index values that will make it feel significantly hotter than the actual air temperature.

As of this Saturday afternoon, the air temperature stands at 91F, with a feels-like temperature of 93F. The relative humidity is at 41%, and the dew point is recorded at 64F. Winds are blowing from the south southwest at 13 mph, with gusts reaching up to 18 mph. The sky remains clear, offering no relief from the sun’s intensity.

The advisory covers two distinct periods. The first runs until 8:00PM CDT today, and the second extends until 8:00PM CDT tomorrow. These alerts emphasize the need for residents to stay hydrated and limit outdoor exertion during the hottest parts of the day.

Forecast for Today and Tomorrow

Today, the high is expected to reach near 97F, with a low near 79F. The chance of precipitation is minimal at 1%, and skies will remain sunny. The National Weather Service notes that heat index values could climb as high as 107 during the day. Winds will be around 10 mph from the south southwest.

Tonight, conditions will be mostly clear with a low around 79. The heat index may remain as high as 105. Winds will shift to the south at 5 to 10 mph.

Tomorrow, the heat will intensify further. The high will approach 100F, with a low near 78F. Skies will stay sunny, and the chance of rain remains at 1%. Heat index values are forecast to reach as high as 109. Winds will be from the southwest at 5 to 10 mph.

Tomorrow night, skies will clear with a low around 78, though temperatures may rise to around 80 overnight. The heat index could hit 107, with south winds of 5 to 10 mph.

Safety Reminder

Given the active Heat Advisory and forecasted heat indices nearing 109, it is critical to stay hydrated and avoid prolonged exposure to the sun. Check on elderly neighbors and ensure pets have access to cool, shaded areas. Limit midday outdoor activities to reduce the risk of heat-related illness.

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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