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5-day forecast / Van Alstyne, TX

TodayMostly Clear0° / 75°
ThursdayMostly Sunny94° / 77° 2%
FridayChance Showers And Thunderstorms89° / 75° 54%
SaturdayShowers And Thunderstorms Likely90° / 76° 56%
SundayMostly Sunny94° / 78° 11%

Heat Advisory in Effect for Van Alstyne as Temperatures Climb

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

A Heat Advisory is active for Van Alstyne, TX, with current feels-like temperatures at 96F. Highs near 91F today and 94F tomorrow bring significant heat stress.

Marlene Ortiz

June 18, 20262 min read

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

Current Conditions and Alert Status

A Heat Advisory is currently in effect for Van Alstyne, Texas, signaling moderate severity and expected urgency. Residents are advised to take precautions as the region experiences very hot and humid conditions. As of this evening, the air temperature stands at 88F, but the heat index makes it feel like 96F. The atmosphere is quite humid, with a dew point of 73F and relative humidity at 62%. Winds are blowing from the south at 15 mph, with gusts reaching up to 23 mph. The sky remains mostly cloudy as the day winds down.

Forecast for Today, Tonight, and Tomorrow

Today, Van Alstyne will see mostly clear skies with a high near 91F and a low near 75F. There is no chance of precipitation today. As tonight approaches, conditions will remain mostly clear with a low around 75F. Winds will shift to the south southeast, maintaining speeds of 10 to 15 mph, with gusts potentially hitting 25 mph.

Tomorrow, the heat will intensify. Expect mostly sunny skies with a high near 94F. The National Weather Service indicates heat index values could reach as high as 106F. Southeast winds will continue at 10 to 15 mph. The chance of precipitation is minimal at 2%. Looking ahead to tomorrow night, there is a 50% chance of showers and thunderstorms between 7pm and 4am, followed by a continued chance of showers. Partly cloudy skies will prevail with a low around 77F. Heat index values may remain elevated near 102F. East southeast winds will lighten to 5 to 10 mph. New rainfall amounts between a tenth and quarter of an inch are possible during this period.

Safety Reminders

Given the active Heat Advisory and high heat index values, it is crucial to stay hydrated and limit midday exertion. Check on elderly neighbors and ensure pets have access to cool water and shade. Avoid prolonged exposure to the sun during the hottest parts of the day.

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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