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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%

Humid Start in Van Alstyne as Temperatures Climb Toward 90

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

Van Alstyne residents face high humidity with a dew point of 72F today. Temperatures will rise to near 90F with heat index values reaching 98. No severe weather alerts are in effect.

Marlene Ortiz

June 9, 20262 min read

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

Current Conditions and Humidity

The morning in Van Alstyne, TX, is defined by significant moisture in the air. Current observations show an air temperature of 79F, but the heat index makes it feel like 82F. Relative humidity sits at 79%, with a dew point of 72F, creating a muggy atmosphere that is likely to persist through the day. Winds are currently blowing from the south at 10 mph, with gusts reaching up to 23 mph. The sky remains cloudy at this hour, but conditions are expected to improve as the day progresses.

Today and Tomorrow Forecast

Today, the sky will clear to become mostly sunny. Highs will reach near 90F. While the official chance of precipitation is only 1%, the heat index is expected to climb as high as 98. South winds will continue, ranging from 5 to 15 mph. As evening approaches, skies will turn mostly clear with lows settling around 76F. South winds will remain steady at 10 to 15 mph during the night.

Tomorrow brings similar warmth and sun. Expect mostly sunny skies with a high near 91F. The heat index will rise further, reaching values as high as 101. South winds will pick up slightly, blowing between 10 and 15 mph, with gusts potentially hitting 25 mph. Overnight, conditions will clear again with lows around 77F. The heat index may remain elevated near 99, with south winds around 15 mph and gusts up to 25 mph.

Safety and Alerts

There are no active National Weather Service or NOAA weather alerts for Van Alstyne at this time. However, the combination of high temperatures and elevated humidity requires caution. The heat index values approaching 101 tomorrow indicate conditions that can be dangerous for prolonged outdoor activity. Residents should stay hydrated and limit strenuous exertion during the hottest parts of the day. Keep an eye on how the humidity affects your comfort level, and dress appropriately for the rising temperatures.

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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High Humidity and Heat Index Near 99 in Van Alstyne

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.

Marlene OrtizJune 13, 20262 min read