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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°F Today; Humid Overnight - Jul 9, 4 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 are humid with a dew point of 72F. No weather alerts are active.

Marlene Ortiz

July 9, 20262 min read

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

*As of Jul 9, 4 AM local time.*

Current Conditions and Heat Index

It is currently Thursday overnight in Van Alstyne, TX, and the air remains quite warm and humid. The current air temperature is 81F, but the heat index makes it feel like 85F. Relative humidity sits at 74%, with a dew point of 72F, indicating significant moisture in the air. The sky is clear, and winds are blowing from the south southwest at 10 mph, with gusts reaching up to 20 mph.

Today and Tomorrow Forecast

Residents should prepare for very hot conditions today. The high will reach near 100F, with heat index values climbing as high as 104F. The sky will remain sunny throughout the day. Winds will continue from the south southwest at 10 to 15 mph. The chance of precipitation is minimal at just 1%.

Tonight, the sky will stay clear. Temperatures will drop to a low around 78F, though they may rise to around 80F later in the night. Heat index values could reach as high as 103F during this period. Winds will shift slightly to the south, maintaining speeds of 10 to 15 mph.

Tomorrow will also be sunny, with a high near 98F. Heat index values are expected to peak at 101F. The chance of rain remains very low at 2%. Winds will persist from the south southwest at 10 to 15 mph. Overnight into tomorrow night, the sky will be mostly clear, with a low around 76F. Winds will continue from the south at 10 to 15 mph.

Safety Reminder

With temperatures and heat index values reaching into the low 100s, it is crucial to stay hydrated and limit midday exertion. Check on neighbors and vulnerable individuals who may be less able to cope with the heat. Ensure pets have access to cool water and shade. While there are no active National Weather Service alerts, the combination of high heat and humidity poses a risk for heat-related illnesses. Please take necessary precautions to stay safe and cool during this period.

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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