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5-day forecast / Van Alstyne, TX

TuesdaySunny100° / 79°
WednesdaySunny99° / 80°
ThursdayMostly Sunny99° / 79° 2%
FridayMostly Sunny100° / 80° 6%
SaturdaySunny98° / 75° 7%

Heat Advisory in Effect for Van Alstyne as Temperatures Climb - Jul 27, 8 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 108 degrees tomorrow. Residents are urged to take precautions against extreme heat.

Marlene Ortiz

July 28, 20262 min read

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

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

Current Conditions and Alert Overview

A Heat Advisory is currently in effect for Van Alstyne, Texas, signaling moderate severity and expected urgency from the National Weather Service. This alert remains active until the evening of July 28. As of this Monday evening, the air temperature stands at 91 degrees Fahrenheit, with a feels-like temperature of 94 degrees.

The relative humidity is at 44 percent, and the dew point is recorded at 66 degrees. Winds are blowing from the south at 10 miles per hour, with gusts reaching 11 miles per hour, under a clear sky.

Forecast for Today and Tomorrow

Today, Van Alstyne is expected to see mostly clear skies with a high near 97 degrees and a low near 79 degrees. The chance of precipitation remains at zero percent. As tonight approaches, conditions will stay mostly clear.

Temperatures will drop to a low around 79 degrees, though they may rise to approximately 81 degrees later in the night. Heat index values are forecast to reach as high as 100 degrees. South winds will persist at 5 to 10 miles per hour.

Tomorrow, the heat will intensify significantly. The sky will be sunny with a high near 100 degrees. The heat index is expected to climb to as high as 108 degrees, creating dangerous conditions for prolonged outdoor exposure.

South southwest winds will continue at 5 to 10 miles per hour. The chance of rain remains zero percent. Following tomorrow, the overnight low will settle around 79 degrees, with temperatures rising to about 81 degrees later in the night.

Heat index values will remain elevated, peaking around 105 degrees, with south winds at 5 to 10 miles per hour.

Safety Reminders

Given the active Heat Advisory and the forecasted heat index values exceeding 100 degrees, it is critical to prioritize safety. Stay hydrated by drinking water frequently, even if you do not feel thirsty. Limit outdoor exertion, especially during the midday and afternoon hours when the sun is strongest.

Seek air-conditioned environments as much as possible. Check on neighbors, particularly the elderly and those without reliable cooling, to ensure their well-being during this period of extreme heat.

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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