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5-day forecast / Van Alstyne, TX

SundaySlight Chance Showers And Thunderstorms95° / 74° 46%
MondayChance Showers And Thunderstorms92° / 73° 39%
TuesdaySlight Chance Rain Showers then Slight Chance Showers And Thunderstorms91° / 73° 19%
WednesdayMostly Sunny then Slight Chance Showers And Thunderstorms91° / 74° 15%
ThursdayMostly Sunny93° / 76° 9%

Van Alstyne Heat Index Hits 99F; Storms Possible Tomorrow - Jul 11, 8 PM

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

Van Alstyne, TX, is experiencing very hot conditions with a current feels-like temperature of 99F. While today remains mostly clear, a slight chance of showers and thunderstorms is expected tomorrow.

Marlene Ortiz

July 12, 20262 min read

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

*As of Jul 11, 8 PM local time.*

Current Conditions and Heat

Van Alstyne, Texas, is currently under the influence of very hot and humid air. As of this evening on Saturday, the air temperature stands at 91F, but the heat index makes it feel like 99F. The relative humidity is at 53%, with a dew point of 72F, contributing to the muggy atmosphere. Winds are blowing from the south southwest at 12 mph, with gusts reaching up to 16 mph. The sky remains clear overhead.

Today and Tonight Forecast

Today, temperatures are expected to reach a high near 95F before dropping to a low near 77F tonight. The sky will remain mostly clear throughout the day with only a 6% chance of precipitation. Overnight, temperatures will initially fall to around 77F but will rise to approximately 79F later in the night. The heat index will remain elevated, with values as high as 99F. Winds will shift to the south southwest, ranging from 5 to 15 mph.

Tomorrow's Outlook

Tomorrow, the weather pattern will shift slightly with the arrival of moisture. Highs will hover near 95F, with temperatures dropping to around 93F in the afternoon. The sky will be mostly sunny, but precipitation chances increase significantly. There is a slight chance of showers and thunderstorms between 7am and 1pm, followed by a chance of showers and thunderstorms from 1pm to 4pm, and continuing thereafter. The overall chance of precipitation is 50%, with new rainfall amounts less than a tenth of an inch possible. Heat index values may climb as high as 103F. Winds will be light, coming from the south around 5 mph.

Safety Reminders

Given the high heat index values, it is important to stay hydrated and limit midday exertion. Check on elderly neighbors and ensure pets have access to cool water and shade. While there are no active National Weather Service or NOAA weather alerts in effect, remain aware of changing conditions as tomorrow brings a higher likelihood of storms.

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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