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5-day forecast / Van Alstyne, TX

ThursdaySunny100° / 78° 1%
FridaySunny98° / 76° 2%
SaturdayMostly Sunny97° / 76° 3%
SundayChance Showers And Thunderstorms93° / 74° 52%
MondayChance Showers And Thunderstorms91° / 74° 39%

Van Alstyne Heat Index Hits 104 Today as Humidity Lingers - Jul 9, 8 AM

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

Van Alstyne faces a very hot day with highs near 100F and heat index values up to 104F. Current conditions show 81F with 74% humidity.

Marlene Ortiz

July 9, 20261 min read

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

*As of Jul 9, 8 AM local time.*

Current Conditions and Heat Index

Van Alstyne is experiencing very hot conditions this morning, with the air temperature at 81F and a feels-like temperature of 85F. The atmosphere is quite humid, with the relative humidity sitting at 74% and a dew point of 72F. Winds are blowing from the south southwest at 8 mph, with gusts reaching up to 26 mph, under a clear sky.

Today and Tonight Forecast

Today will be sunny with a high near 100F. The National Weather Service indicates heat index values will climb as high as 104. South southwest winds will persist at 10 to 15 mph. The chance of precipitation is minimal at just 1%. As the day transitions to tonight, skies will remain clear. Temperatures will drop to a low near 78F, though they may rise to around 80F overnight. Heat index values will remain elevated, reaching up to 103. South winds will continue at 10 to 15 mph.

Tomorrow Outlook

Tomorrow will also be sunny, with a high near 98F. Heat index values are expected to peak at 101. South southwest winds will blow at 10 to 15 mph. The chance of precipitation remains very low at 2%. Overnight, conditions will be mostly clear with a low around 76F. Heat index values will stay high, reaching up to 100, with south winds at 10 to 15 mph.

Safety Reminder

With heat index values exceeding 100F today and tomorrow, it is crucial to stay hydrated and limit midday exertion. Check on neighbors and vulnerable individuals who may be affected by the extreme heat. Ensure pets have access to cool water and shade. Avoid prolonged exposure to the sun during peak hours to prevent heat-related illnesses.

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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