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5-day forecast / Van Alstyne, TX

TuesdaySlight Chance Rain Showers then Chance Showers And Thunderstorms88° / 70° 41%
WednesdayMostly Sunny then Slight Chance Showers And Thunderstorms86° / 72° 18%
ThursdayPartly Sunny then Slight Chance Showers And Thunderstorms89° / 73° 17%
FridayMostly Sunny90° / 75° 5%
SaturdaySunny93° / 75° 1%

Humid Start in Van Alstyne with Showers Likely Today - Jul 13, 8 AM

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

Van Alstyne residents face high humidity and a chance of rain today. Temperatures will rise significantly tomorrow with heat index values nearing 99 degrees.

Marlene Ortiz

July 13, 20262 min read

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

*As of Jul 13, 8 AM local time.*

Current Conditions and Humidity

The air in Van Alstyne is currently quite heavy with moisture. The temperature sits at 75F, but the heat index makes it feel like 77F. Relative humidity is at 94%, with a dew point of 73F, creating a muggy atmosphere. Winds are light at 5 mph with gusts to 2 mph, and the sky is mostly cloudy.

Today and Tonight Forecast

Rain is expected to move through the area today. There is a 59% chance of precipitation, with showers and thunderstorms likely. Highs will reach near 85F, while lows drop to around 71F tonight. According to the National Weather Service, there is a 60% chance of rain today, with new rainfall amounts between a quarter and half of an inch possible. Winds will remain light from the east southeast at 0 to 5 mph.

Tonight, the chance of rain decreases to 20%. There is a slight chance of showers and thunderstorms before 10pm. The sky will be partly cloudy with a low around 71. New rainfall amounts less than a tenth of an inch are possible. Winds continue from the east southeast at 0 to 5 mph.

Tomorrow Outlook

Conditions will warm up significantly tomorrow. Highs will climb to near 91F, with heat index values as high as 99. The sky will be partly sunny, transitioning to a slight chance of showers and thunderstorms after 1pm. The chance of precipitation is 20%, with new rainfall amounts less than a tenth of an inch possible. Winds will shift to the east at 0 to 10 mph.

Tomorrow night, there is a slight chance of showers and thunderstorms before 7pm. The sky will be partly cloudy with a low around 70, rising to around 72 overnight. Winds will be from the south at 0 to 5 mph. The chance of precipitation remains at 20%.

Safety Reminder

With high humidity and rising temperatures, stay hydrated and limit midday exertion. Keep an eye on the sky for developing storms, especially later in the day.

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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