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5-day forecast / Van Alstyne, TX

SundaySlight Chance Showers And Thunderstorms96° / 77° 16%
MondaySunny99° / 78° 2%
TuesdaySunny101° / 81°
WednesdaySunny101° / 80° 1%
ThursdaySunny99° / 79° 1%

Humid Start in Van Alstyne as Temps Climb Toward 98 - Jul 19, 4 AM

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

Van Alstyne wakes to high humidity with a 73F dew point. Sunny skies and rising heat index values are expected through tomorrow, with no active weather alerts.

Marlene Ortiz

July 19, 20262 min read

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

*As of Jul 19, 4 AM local time.*

Current Conditions and Humidity

It is currently Sunday overnight in Van Alstyne, and the air feels thick with moisture. The current air temperature sits at 79F, but the heat index makes it feel like 82F. Relative humidity is holding at 84%, with a dew point of 73F indicating quite humid conditions. Winds are light at 6 mph with gusts reaching 13 mph, and the sky remains clear.

Today and Tonight Forecast

Sunny skies will continue through the day today, with a high near 96F. The heat index is expected to reach as high as 103F, making it feel significantly hotter than the actual air temperature. South southwest winds will blow between 5 to 10 mph. The chance of precipitation is low at 13%.

As the day ends, tonight will be mostly clear. Temperatures will drop to a low around 76F, though they may rise slightly to around 78F during the overnight hours. South winds will decrease to around 5 mph. The heat index will remain elevated, with values as high as 99F. The low will settle around 77F later in the night.

Tomorrow Outlook

Tomorrow will bring another sunny day with a high near 98F. Conditions will feel even more oppressive, with heat index values climbing as high as 104F. Southwest winds will persist at 5 to 10 mph.

The chance of rain drops to just 2%. Overnight, skies will clear completely, with a low around 78F and temperatures rising to around 80F. South southwest winds will be around 5 mph.

Safety Reminder

With heat index values pushing into the 100s, it is important to stay hydrated and limit midday exertion. Check on neighbors and elderly relatives who may be more vulnerable to the heat. There are no active National Weather Service alerts for this area, but the humidity and heat warrant caution.

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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