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5-day forecast / Denison, TX

MondaySunny101° / 80°
TuesdaySunny102° / 81°
WednesdayMostly Sunny102° / 80° 1%
ThursdayMostly Sunny101° / 81° 2%
FridayMostly Sunny103° / 80° 3%

Heat Advisory in Effect for Denison as Temperatures Climb Near 101 - Jul 26, 8 PM

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

A Heat Advisory is active for Denison, TX, with current feels-like temperatures at 97F. Highs near 101F expected today and tomorrow with heat indices reaching 104.

Briar Iverson

July 27, 20262 min read

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

*As of Jul 26, 8 PM local time.*

Current Conditions and Alert Status

A Heat Advisory is currently in effect for Denison, Texas, signaling dangerous heat levels that require caution. As of this Sunday evening, the air temperature stands at 94F, but the combination of heat and humidity pushes the feels-like temperature to 97F. The relative humidity is at 39%, with a dew point of 65F.

Winds are blowing from the south at 11 mph, with gusts reaching up to 15 mph, under a clear sky.

The National Weather Service has issued this advisory with moderate severity and expected urgency. It remains in place through the evening, emphasizing the need for residents to monitor conditions closely as the heat persists into the night.

Forecast for Today, Tonight, and Tomorrow

Today in Denison, temperatures are expected to reach a high near 101F, with a low near 79F. The sky will remain mostly clear, and there is a 0% chance of precipitation. As tonight approaches, conditions will stay mostly clear with a low around 79. Heat index values are forecast to climb as high as 103. South winds will decrease to around 5 mph.

Tomorrow, the heat will continue with sunny skies and a high near 101F. The heat index is expected to peak at 104, making it feel significantly hotter than the actual air temperature. South southwest winds will range from 5 to 10 mph.

Tomorrow night, skies will turn mostly clear again with a low around 80. Heat index values will remain elevated, reaching as high as 103, with south winds around 5 mph.

Safety Reminders

Given the active Heat Advisory and high heat index values, it is critical to stay hydrated and limit outdoor exertion during the hottest parts of the day. Check on elderly neighbors and those without air conditioning. Never leave people or pets in parked vehicles. Seek air-conditioned spaces during peak heat hours to avoid 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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Briar Iverson

Briar Iverson covers weather, storms, and seasonal life around Denison.

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