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5-day forecast / Van Alstyne, TX

MondaySunny103° / 78° 2%
TuesdaySunny101° / 79°
WednesdaySunny101° / 78° 1%
ThursdaySunny101° / 77° 7%
FridaySunny99° / 75° 7%

Van Alstyne Heat and Humidity Persist Through Tomorrow - Aug 10, 4 AM

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

Highs near 99F with heat indices up to 104F. No active alerts, but extreme heat safety is essential as humidity remains high.

Marlene Ortiz

August 10, 20262 min read

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

*As of Aug 10, 4 AM local time.*

Current Conditions and Notable Humidity

It is currently Monday overnight in Van Alstyne, TX, where the air feels quite heavy due to significant moisture levels. The current air temperature stands at 79F, but the combination of heat and moisture pushes the feels-like temperature to 82F. Relative humidity is sitting at a stifling 79%, with a dew point of 72F indicating substantial atmospheric moisture.

Winds are blowing from the south at 9 mph, with gusts reaching up to 17 mph, while the sky remains mostly clear above.

Today and Tonight Forecast

Today will be sunny with a high near 99F. The National Weather Service indicates heat index values as high as 104F during the peak afternoon hours. There is only a 1% chance of precipitation, so rain is not expected.

As evening approaches tonight, skies will remain clear. Temperatures will drop to a low around 76F initially, but will rise to around 78F later in the overnight period. South winds will continue around 10 mph.

By the time tomorrow arrives, heat index values are forecast to reach as high as 101F.

Tomorrow Outlook and Safety Reminders

Tomorrow remains sunny with a high near 98F. The heat index is expected to climb to 103F, maintaining hazardous conditions for prolonged outdoor exposure. Overnight lows will settle around 79F, with temperatures rising to approximately 81F before dawn. South winds will persist at 10 to 15 mph throughout the period. There is no chance of precipitation tomorrow.

There are no active National Weather Service or NOAA weather alerts in effect for this area. However, the combination of high temperatures and elevated humidity creates a dangerous environment. Residents should hydrate frequently and limit midday exertion to avoid heat-related illness.

Check on elderly neighbors and ensure pets have access to cool water and shade. Avoid direct sun exposure during peak heat hours and wear lightweight, light-colored clothing if you must be outside.

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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