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5-day forecast / Denison, TX

WednesdaySunny100° / 75° 2%
ThursdaySunny95° / 76° 1%
FridayMostly Sunny98° / 81° 1%
SaturdayMostly Sunny99° / 81° 5%
SundaySunny100° / 80° 1%

Extreme Heat Warning in Effect for Denison as Temperatures Soar Near 100F - Jul 22, 8 AM

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

An Extreme Heat Warning is active for Denison, TX. Current conditions are oppressively humid with a feels-like temperature of 87F. Highs near 100F expected today with heat indices reaching 108F.

Briar Iverson

July 22, 20262 min read

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

*As of Jul 22, 8 AM local time.*

Severe Heat Alert Active

An Extreme Heat Warning is currently in effect for Denison, Texas. This severe alert indicates dangerous heat conditions that pose significant risks to health and safety. The warning is issued by the National Weather Service and remains active until the specified end time. Residents are urged to take immediate precautions to avoid heat-related illnesses.

Current Conditions and Forecast

It is currently Wednesday this morning in Denison. The air temperature stands at 81F, but the oppressive humidity makes it feel like 87F. The relative humidity is at 89%, with a dew point of 77F, creating a muggy atmosphere. Winds are light at 6 mph with gusts up to 11 mph, and the sky is clear.

Today, the sun will be out with a high near 100F. The National Weather Service forecasts heat index values as high as 108F. Northeast winds will blow between 5 to 10 mph.

The chance of precipitation is minimal at 2%. Tonight, skies will remain clear with a low around 75F. Temperatures may rise slightly to around 77F overnight.

Heat index values will remain elevated at up to 107F. East northeast winds will continue at 5 to 10 mph.

Tomorrow, conditions will stay sunny with a high near 95F. The heat index is expected to reach 100F. East winds will persist at 5 to 10 mph. The chance of rain is negligible at 1%. Tomorrow night will be clear with a low around 76F. Heat index values will drop slightly to 99F. East southeast winds will remain steady at 5 to 10 mph.

Safety Reminders

Given the severe heat warning, it is critical to stay hydrated and limit midday exertion. Seek air-conditioned environments as much as possible. Check on neighbors and vulnerable individuals who may be at higher risk. Never leave people or pets in parked vehicles. Wear lightweight, light-colored clothing and use sunscreen if you must be outdoors. Monitor local news for updates on the warning status.

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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