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5-day forecast / Denison, TX

WednesdayMostly Sunny100° / 78° 1%
ThursdayMostly Sunny101° / 80° 5%
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SundaySunny94° / 73° 1%

Heat Advisory in Effect for Denison as Temperatures Climb Near 102F - Jul 29, 8 AM

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

A Heat Advisory is active for Denison, TX, with highs near 102F and heat index values reaching 109F. Humidity remains high with a dew point of 73F.

Briar Iverson

July 29, 20262 min read

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

*As of Jul 29, 8 AM local time.*

Current Conditions and Alert Status

A Heat Advisory is currently in effect for Denison, Texas, signaling dangerous heat levels that require caution. The National Weather Service has issued this moderate-severity alert to warn residents of the intense thermal conditions expected to persist through the day.

Right now, the air temperature stands at 82F, but the combination of heat and moisture makes it feel significantly warmer, with a feels-like temperature of 88F. The atmosphere is quite humid, with a dew point of 73F and relative humidity holding at 74%. Winds are blowing from the south-southwest at 9 mph, with gusts reaching up to 13 mph.

The sky remains clear overhead as the day begins.

Forecast for Today and Tomorrow

Today, the sun will dominate the sky with mostly sunny conditions. Temperatures will rise to a high near 102F, while the low will settle around 81F. The chance of precipitation is minimal at just 2%. According to the National Weather Service, heat index values will climb as high as 107 today. Winds will shift to the south-southwest at around 5 mph.

Tonight, skies will transition to partly cloudy. The low will drop to around 81F. Despite the cooling, the heat index will remain elevated, reaching as high as 106. Winds will continue from the south-southeast at approximately 5 mph.

Tomorrow brings another day of mostly sunny skies. The high will again reach near 102F, with a low of 81F. The precipitation chance remains low at 2%. Heat index values are forecast to peak at 109 tomorrow. Winds will be from the south at around 5 mph.

Safety Reminders

With heat index values approaching 109F, it is critical to stay cool and hydrated. Limit outdoor exertion, especially during the midday hours when the sun is strongest. Wear lightweight, light-colored clothing and seek air-conditioned environments whenever possible. Check on elderly neighbors and those without reliable cooling to ensure their safety during this advisory period.

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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