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5-day forecast / Van Alstyne, TX

FridaySunny101° / 79° 2%
SaturdayMostly Sunny95° / 72° 6%
SundaySunny93° / 73°
MondaySunny96° / 75°
TuesdaySunny98° / 77°

Heat Advisory in Effect for Van Alstyne as Temperatures Soar - Jul 31, 5 AM

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

A Heat Advisory is active for Van Alstyne today with highs near 101F and heat index values reaching 110. Humidity remains high, making conditions feel oppressive.

Marlene Ortiz

July 31, 20262 min read

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

*As of Jul 31, 5 AM local time.*

Current Conditions and Alert Overview

Van Alstyne, TX is currently under an active Heat Advisory issued by the National Weather Service in Fort Worth. This moderate-severity alert is expected to remain in effect until late tonight. Residents are advised to take precautions against the extreme heat that defines the current weather pattern.

Right now, the air temperature stands at 81F, but the combination of heat and moisture makes it feel like 85F. The relative humidity is at 74%, with a dew point of 72F, indicating quite humid conditions. Winds are blowing from the south at 8 mph, with gusts reaching up to 16 mph. The sky remains clear overhead.

Forecast for Today and Tomorrow

Today will be intensely hot and sunny. Highs are expected to reach near 101F. The National Weather Service notes that heat index values could climb as high as 110 during the peak afternoon hours. Winds will shift to the southwest around 10 mph. There is only a 2% chance of precipitation, so skies will stay clear.

Tonight, conditions will remain clear initially with lows near 79F. Temperatures may rise slightly to around 81F overnight. A slight chance of showers and thunderstorms exists between 10pm and 1am, though the overall chance of precipitation remains low at 20%. Winds will shift to the west southwest at 5 to 10 mph.

Tomorrow brings a slight cooldown but still warm conditions. Highs will drop to near 95F under mostly sunny skies. A north wind will pick up, ranging from 10 to 15 mph with gusts as high as 25 mph.

The chance of precipitation increases slightly to 6%. Tomorrow night will be mostly clear with a low around 72F and north northeast winds of 5 to 15 mph.

Safety Reminder

Given the active Heat Advisory and high heat index values, it is critical to stay hydrated and limit midday exertion. Check on neighbors who may be vulnerable to extreme heat. Avoid prolonged exposure to the sun during peak hours.

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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