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5-day forecast / Van Alstyne, TX

TuesdaySunny102° / 81° 1%
WednesdaySunny100° / 79° 1%
ThursdaySunny98° / 78° 1%
FridaySunny99° / 81°
SaturdayMostly Sunny99° / 80° 6%

Heat Advisory in Effect for Van Alstyne as Temperatures Climb - Jul 20, 4 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 101F and heat index values reaching 106F. Humidity remains high with a dew point of 73F.

Marlene Ortiz

July 20, 20262 min read

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

*As of Jul 20, 4 AM local time.*

Current Conditions and Alert Status

A Heat Advisory is currently in effect for Van Alstyne, Texas, signaling moderate severity and expected urgency. Residents are advised to take precautions as the region experiences significant heat and humidity. The National Weather Service has issued this alert to highlight the potential for heat-related risks over the next day.

Right now, the air temperature stands at 81F, though it feels like 85F due to the moisture in the air. The relative humidity is at 79%, with a dew point of 73F, indicating quite humid conditions. Skies are clear, and winds are blowing from the southwest at 5 mph, with gusts reaching up to 15 mph.

Forecast for Today and Tomorrow

Today, the sun will dominate the sky with sunny conditions. Temperatures will rise to a high near 98F, while the low will settle near 77F. The chance of precipitation is minimal at just 2%. During the day, heat index values are expected to reach as high as 104F. Winds will remain light from the southwest around 5 mph.

Tonight, the sky will remain clear. The low will be around 77F, with temperatures rising to approximately 79F overnight. Winds will continue from the southwest at around 5 mph.

Tomorrow, the heat will intensify further. Expect another sunny day with a high near 101F and a low near 80F. There is no chance of precipitation, at 0%. The heat index is projected to climb to 106F. Winds will shift slightly to the west southwest at around 5 mph.

Tomorrow night, conditions will clear again with a low around 80F. Temperatures may rise to around 82F overnight. Winds will be light from the south at 0 mph.

Safety Reminders

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. Wear lightweight, light-colored clothing and seek air-conditioned environments during the peak heat 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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