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5-day forecast / Van Alstyne, TX

TodayMostly Clear0° / 74° 5%
SundayMostly Sunny92° / 77° 2%
MondayChance Showers And Thunderstorms91° / 76° 35%
TuesdayChance Showers And Thunderstorms then Slight Chance Showers And Thunderstorms91° / 75° 33%
WednesdayChance Showers And Thunderstorms88° / 73° 50%

Humidity Clings to Van Alstyne as Temperatures Climb Toward 92

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

Oppressive humidity lingers in Van Alstyne with a dew point of 75F. Highs near 92F and heat indices up to 102F are expected through tomorrow.

Marlene Ortiz

June 21, 20262 min read

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

Current Conditions and Humidity

The air in Van Alstyne feels heavy and muggy this Saturday evening. The current air temperature stands at 84F, but the heat index makes it feel like 92F. This disparity is driven by a dew point of 75F and a relative humidity of 74%, creating an oppressively humid environment that makes the air feel thick and stagnant. Winds are light, blowing from the south-southeast at 6 mph with gusts reaching 12 mph. The sky remains mostly clear overhead, offering little relief from the moisture-laden atmosphere.

Forecast for Tonight and Tomorrow

Conditions will remain warm and humid through the night. Temperatures are expected to drop to a low near 74F, though they may rise slightly to around 76F during the overnight hours. Winds will pick up slightly, coming from the south-southeast at 5 to 10 mph, with gusts as high as 20 mph. The sky will stay mostly clear.

Tomorrow brings a noticeable increase in heat. Highs will climb to near 92F under mostly sunny skies. The heat index is forecast to reach as high as 102F, making it feel significantly hotter than the actual air temperature. South winds will strengthen to 10 to 15 mph, with gusts up to 25 mph. The chance of precipitation is minimal at 2%.

Looking ahead to tomorrow night, the heat will persist with a low near 77F and heat index values again reaching 102F. There is a 30% chance of rain showers between 1am and 4am, followed by a chance of showers and thunderstorms. Skies will be partly cloudy, and new rainfall amounts less than a tenth of an inch are possible. Winds will remain from the south at 10 to 15 mph with gusts up to 25 mph.

Safety Reminder

With heat indices pushing into the 100s, it is crucial to stay hydrated and limit time spent in direct sun during the peak heat of the day. Wear lightweight, light-colored clothing and check on neighbors who may be vulnerable to extreme heat. If you must be outdoors, take frequent breaks in shaded or air-conditioned areas.

National Weather Service radar for North Texas (KFWS)
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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Van Alstyne Heat Index Hits 98F; Humidity Rises

Van Alstyne residents face oppressive heat and humidity this afternoon with a feels-like temperature of 98F. Conditions remain hot through tomorrow with highs near 92F and a heat index reaching 103F.

Marlene OrtizJune 20, 20262 min read