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5-day forecast / Van Alstyne, TX

TodayMostly Sunny91° / 76° 2%
SundayShowers And Thunderstorms Likely84° / 66° 66%
MondayShowers And Thunderstorms78° / 63° 77%
TuesdayMostly Sunny85° / 71° 2%
WednesdaySunny92° / 77° 1%

Heavy Humidity and Storms Mark Friday Night in Van Alstyne

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

Oppressive humidity lingers with a dew point of 75F as showers and thunderstorms move through Van Alstyne tonight. Temperatures will climb toward 91F tomorrow under mostly sunny skies.

Marlene Ortiz

June 12, 20262 min read

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

Current Conditions and Humidity

It is currently Friday overnight in Van Alstyne, TX, where the air feels heavy and muggy. The current air temperature stands at 82F, but the heat index makes it feel like 89F. This oppressive humidity is driven by a dew point of 75F and a relative humidity of 79%. The sky is clear, but winds are picking up, blowing from the south southeast at 11 mph with gusts reaching 27 mph.

Forecast for Today and Tonight

The National Weather Service indicates that showers and thunderstorms are likely today, with a high near 88F and a low near 77F. There is a 59% chance of precipitation. Rainfall is expected to be heaviest before 1pm, with new amounts between a half and three quarters of an inch possible. Between 1pm and 4pm, there is only a slight chance of additional showers and thunderstorms.

As evening sets in tonight, the sky will become mostly cloudy. Showers and thunderstorms remain likely, with a low around 77F. The heat index will rise to values as high as 98F. Winds will shift to the south southeast at 5 to 10 mph. Residents should anticipate new rainfall amounts between a quarter and half of an inch during this period.

Tomorrow’s Outlook

Conditions will improve significantly by tomorrow. The sky will be mostly sunny with a high near 91F and a low near 76F. The chance of precipitation drops to just 4%. However, the heat will intensify, with heat index values reaching as high as 101F. Winds will increase to the south at 10 to 15 mph.

Safety Reminders

Given the high heat index values forecasted for both tonight and tomorrow, it is crucial 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 weather alerts in effect, the combination of high heat and humidity requires caution to prevent heat-related illnesses.

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 faces a humid start with a dew point of 73F. Today brings mostly sunny skies and a high near 91F, with heat index values reaching 99. Showers and thunderstorms are likely tomorrow.

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