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5-day forecast / Van Alstyne, TX

MondaySunny101° / 77° 2%
TuesdaySunny101° / 81°
WednesdaySunny101° / 80° 1%
ThursdaySunny99° / 79° 1%
FridaySunny98° / 79° 1%

Humid Heat Returns to Van Alstyne With Highs Near 98 - Jul 19, 8 AM

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

Van Alstyne faces high humidity and intense heat today, with temperatures reaching 96F and a heat index up to 103F. A slight chance of storms lingers this afternoon.

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, 8 AM local time.*

Current Conditions and Humidity

It is currently Sunday this morning in Van Alstyne, TX, where the air is notably heavy with moisture. The current air temperature stands at 81F, but the humidity makes it feel warmer, with a feels-like temperature of 85F. The relative humidity is at 79%, and the dew point is 73F, indicating a muggy atmosphere that will likely persist through the day.

Winds are blowing from the south southwest at 8 mph, with gusts reaching up to 20 mph. The sky remains clear at this hour, offering no immediate relief from the warmth.

Today and Tonight Forecast

Temperatures will climb significantly today, with a high near 96F. The heat index is expected to reach as high as 103F, creating conditions that require caution. While the morning will be sunny, there is a slight chance of showers and thunderstorms developing after 4pm.

The chance of precipitation is listed at 15% for the day, though the official forecast notes a 20% chance. Winds will remain light, shifting to a south direction at 5 to 10 mph.

As evening approaches, the chance for storms continues before 7pm. The sky will become mostly clear by tonight, with a low near 77F. Temperatures may rise slightly to around 79F overnight. The heat index will drop but remain elevated at around 99F. Winds will continue from the south at 5 to 10 mph.

Tomorrow Outlook

Conditions will remain hot and dry tomorrow. The sky will be sunny with a high near 98F. The heat index is forecast to peak at 104F, intensifying the heat stress.

Winds will shift to the southwest at 5 to 10 mph. The chance of precipitation drops to just 2%, making it a dry day. Temperatures will fall to a low near 78F tomorrow night, with the heat index around 101F.

Safety Reminder

With heat index values exceeding 100F, it is crucial to stay hydrated and limit midday exertion. Check on neighbors and pets to ensure they are safe in the heat. Avoid prolonged exposure to the sun during the hottest parts of the day.

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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