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5-day forecast / Van Alstyne, TX

TuesdaySunny99° / 77°
WednesdaySunny98° / 76° 4%
ThursdayMostly Sunny97° / 76° 5%
FridaySunny97° / 75° 1%
SaturdaySunny97° / 74° 1%

Van Alstyne Under Heat Advisory as Feels-Like Temps Hit 104F - Sep 15, 2 PM

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

A moderate Heat Advisory is in effect for Van Alstyne, TX. Current conditions show a heat index of 104F with clear skies and sunny forecasts continuing through tomorrow.

Marlene Ortiz

September 15, 20262 min read

National Weather Service radar for North Texas (KFWS)

*As of Sep 15, 2 PM local time.*

Dangerous Heat Conditions Underway

Van Alstyne, TX, is currently under an active Heat Advisory issued by the National Weather Service in Fort Worth. The advisory carries a moderate severity rating and indicates expected urgency for the region. Residents are experiencing dangerous heat levels right now, with the air temperature at 99F but a feels-like temperature of 104F due to humidity and wind factors.

Current conditions show clear skies with relative humidity at 37% and a dew point of 68F. Winds are blowing from the south at 14 mph, with gusts reaching up to 15 mph. This combination of high heat and moderate winds creates hazardous conditions for outdoor activities.

Forecast Outlook

Today remains sunny with a high near 99F. The National Weather Service reports heat index values as high as 105 during the day. South winds will range from 10 to 15 mph. There is no chance of precipitation today, leaving the sky clear and conditions dry.

Tonight, skies will stay clear with a low near 77F. Temperatures may rise slightly to around 79F overnight. Heat index values could reach as high as 102. Winds will shift to south-southeast at 5 to 15 mph. The advisory remains in effect through the evening hours.

Tomorrow continues the hot pattern with sunny skies and a high near 98F. Heat index values are expected to climb to 104F. South winds will decrease slightly to 5 to 10 mph. There is a minimal 4% chance of precipitation, so conditions remain predominantly dry and clear.

Safety Reminders

Extreme heat poses serious health risks. Stay hydrated by drinking water frequently, even if you do not feel thirsty. Limit outdoor exertion during the hottest parts of the day, typically midday through early evening.

Check on elderly neighbors or those with health conditions who may be vulnerable to heat-related illness. Never leave people or pets in parked vehicles, as interior temperatures can rise rapidly regardless of outside air temperature.

National Weather Service radar for North Texas (KFWS)

Sources

National Weather Service radar

National Weather Service forecast data

Open-Meteo weather data

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Marlene Ortiz

Marlene Ortiz covers weather, storms, and seasonal life across Van Alstyne and Grayson County.

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