Back to Weather

5-day forecast / Van Alstyne, TX

TodaySunny90° / 75° 1%
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 heat index values reaching up to 107 degrees tomorrow. Current conditions are humid with strong winds.

Marlene Ortiz

June 17, 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, issued by the National Weather Service in Fort Worth. This moderate-severity alert, which is expected to impact the area, remains active until 9:00 PM CDT on June 18. Residents should be prepared for dangerously high heat index values over the next day.

As of this Wednesday afternoon, the air temperature stands at 84 degrees Fahrenheit, but the combination of heat and moisture makes it feel like 91 degrees. The relative humidity is at 70 percent, with a dew point of 73 degrees, indicating quite humid conditions. Winds are blowing from the south at 21 miles per hour, with gusts reaching 26 miles per hour. The sky is mostly cloudy at this moment.

Forecast for Today and Tomorrow

The National Weather Service forecasts mostly sunny skies for today, with a high near 90 degrees. The heat index is expected to reach as high as 99 degrees. South winds will continue, ranging from 10 to 20 miles per hour, with gusts as high as 25 miles per hour. The chance of precipitation is minimal at 1 percent.

Tonight, skies will clear to mostly clear, with a low around 74 degrees. The heat index will remain elevated, reaching up to 97 degrees. South southeast winds will persist at 10 to 20 miles per hour.

Tomorrow brings significantly hotter conditions. Highs will approach 95 degrees, with the heat index soaring to 107 degrees. South southeast winds will be lighter, between 10 and 15 miles per hour. Skies will remain mostly sunny, and the chance of rain stays at 1 percent.

Safety Reminders

Given the active Heat Advisory and the forecasted heat index values exceeding 100 degrees, it is critical to take precautions. Stay hydrated by drinking plenty of water, even if you do not feel thirsty. Limit outdoor exertion, especially during the midday hours when the sun is strongest. Check on elderly neighbors or those without air conditioning to ensure their safety. If you must be outside, seek shade and wear lightweight, light-colored clothing to help manage the intense heat and humidity.

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

Share

Marlene Ortiz

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

Related Stories