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5-day forecast / Van Alstyne, TX

WednesdaySunny103° / 80°
ThursdaySunny then Slight Chance Showers And Thunderstorms102° / 79° 16%
FridaySunny102° / 78° 6%
SaturdaySunny101° / 79° 3%
SundaySunny103° / 80° 2%

Extreme Heat Warning in Effect for Van Alstyne as Temperatures Soar - Aug 19, 6 AM

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

An Extreme Heat Warning is active for Van Alstyne, TX, with highs near 103F today. Current conditions are hot and clear, with heat index values reaching 108F tomorrow.

Marlene Ortiz

August 19, 20262 min read

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

*As of Aug 19, 6 AM local time.*

Severe Heat Alert Active

Residents of Van Alstyne, Texas, are under an Extreme Heat Warning issued by the National Weather Service in Fort Worth. This severe alert is in effect until August 19 at 8:00PM CDT. The warning highlights dangerous heat levels that pose significant risks to health and safety for those exposed to the elements without proper precautions.

Current Conditions and Today's Forecast

As of Wednesday morning, the air temperature stands at 79F with a feels-like temperature of 80F. Relative humidity is at 70%, and the dew point is 68F. Winds are blowing from the south southwest at 7 mph, with gusts reaching up to 17 mph. The sky remains clear.

Today will be intensely hot and sunny. Highs are expected to reach near 103F, while lows will drop to around 80F. There is a zero percent chance of precipitation. According to the National Weather Service, heat index values could climb as high as 104F during the day. Winds will continue from the south southwest at approximately 10 mph.

Tomorrow's Outlook and Safety Tips

Temperatures will remain dangerously high tomorrow. The high will be near 102F, with lows around 79F. While the morning will start sunny, there is a slight chance of showers and thunderstorms after 4pm. The National Weather Service notes a 20% chance of precipitation for tomorrow, with heat index values potentially reaching 108F. Winds will shift to the southwest at 5 to 10 mph.

Tonight, conditions will be mostly clear with a low around 80F. Temperatures may rise slightly to around 83F overnight. South southwest winds will persist at around 10 mph. Another forecast segment indicates lows near 82F with heat index values up to 103F.

Given the Extreme Heat Warning, it is critical to stay hydrated and limit outdoor exertion during the hottest parts of the day. Check on neighbors and vulnerable individuals regularly. Ensure pets have access to shade and cool water. Avoid direct sun exposure as much as possible to prevent heat-related illnesses.

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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