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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 - Aug 10, 5 PM

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 high heat index of 104F with sunny skies expected through tomorrow.

Marlene Ortiz

August 10, 20262 min read

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

*As of Aug 10, 5 PM local time.*

Dangerous Heat Conditions Underway

Van Alstyne, TX is currently under an active Heat Advisory issued by the National Weather Service in Fort Worth. This moderate-severity alert remains in effect until August 11 at 8:00PM CDT. The advisory highlights dangerous heat conditions that are expected to impact the area.

Current observations indicate an air temperature of 97F, but the combination of heat and humidity makes it feel significantly hotter. The current feels-like temperature stands at 104F. Relative humidity is at 42%, with a dew point of 70F, contributing to the muggy atmosphere.

Winds are blowing from the south at 14 mph, with gusts reaching up to 16 mph. The sky remains mostly clear as of this evening.

Forecast for Today and Tomorrow

The National Weather Service forecasts sunny conditions for today, with a high near 97F. Heat index values are expected to reach as high as 105 during the day. South winds will persist at 10 to 15 mph.

Overnight tonight, skies will clear, allowing temperatures to drop to a low around 77F. However, temperatures may rise slightly to around 79F later in the night. The heat index could remain as high as 102 even after sunset.

South winds of 10 to 15 mph are expected to continue.

Tomorrow will also be sunny with a high near 97F. Heat index values may climb to 106, making it feel even hotter than the actual air temperature. Winds will shift slightly to south-southwest but remain in the 10 to 15 mph range.

The chance of precipitation is minimal at 1%. Temperatures will settle to a low near 78F tomorrow night, with heat index values around 103.

Safety Reminders

Given the active Heat Advisory and high heat index values, residents are urged to take precautions against extreme heat. Stay hydrated by drinking plenty of water throughout the day. Limit outdoor exertion, especially during the hottest parts of the day when temperatures peak.

Check on elderly neighbors or those who may be vulnerable to heat-related illnesses. If you must be outside, seek shade or air-conditioned spaces whenever possible. Monitor local weather updates for any changes to the advisory status.

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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