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5-day forecast / Van Alstyne, TX

MondayMostly Sunny100° / 78°
TuesdaySunny100° / 79°
WednesdayMostly Sunny100° / 80° 2%
ThursdayMostly Sunny100° / 80° 4%
FridayMostly Sunny100° / 80° 7%

Heat Advisory in Effect for Van Alstyne as Temperatures Climb Near 100 - Jul 27, 8 AM

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

A Heat Advisory is active for Van Alstyne, TX, with highs near 100F and heat indices reaching 106F. Current conditions are hot and humid with clear skies.

Marlene Ortiz

July 27, 20262 min read

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

*As of Jul 27, 8 AM local time.*

Current Conditions and Alert Overview

Van Alstyne, TX, is currently under an active Heat Advisory issued by the National Weather Service. This moderate-severity alert is in effect until the evening of July 27. The advisory highlights the significant heat stress expected in the area, urging residents to take precautions against the rising temperatures.

Right now, the air temperature stands at 84F, but the combination of heat and moisture makes it feel like 88F. The relative humidity is at 62%, with a dew point of 70F, indicating quite humid conditions that contribute to the discomfort. Winds are blowing from the south southwest at 9 mph, with gusts reaching up to 22 mph.

The sky remains clear overhead, allowing for rapid heating of the surface.

Forecast for Today and Tomorrow

Today, Van Alstyne will experience mostly sunny skies with a high near 100F. The National Weather Service reports heat index values as high as 106 during the day. South southwest winds will persist around 10 mph. There is a 0% chance of precipitation, so the heat will remain the primary focus without any relief from rain.

Tonight, conditions will shift to mostly clear skies. Temperatures will drop to a low near 78F, though they may rise slightly to around 80F overnight. The heat index is expected to remain elevated at values as high as 104. Winds will ease to a south direction at 5 to 10 mph. Despite the drop in actual temperature, the humidity will keep the feels-like readings high.

Tomorrow, the heat will continue with sunny skies and a high near 100F. Heat index values will reach 104. South southwest winds will remain light at 5 to 10 mph. No precipitation is expected. The following night will be mostly clear with a low around 79F and heat indices up to 102.

Safety Reminder

Given the active Heat Advisory and high heat index values, it is crucial to stay hydrated and limit midday exertion. Check on neighbors, especially the elderly and those without air conditioning. Avoid prolonged exposure to the sun and seek air-conditioned environments when possible.

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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