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5-day forecast / Denison, TX

FridaySlight Chance Showers And Thunderstorms then Mostly Sunny96° / 72° 19%
SaturdaySunny100° / 78° 3%
SundaySunny99° / 78°
MondaySunny98° / 78° 1%
TuesdaySunny99° / 78° 2%

Denison Weather: Humid Heat Builds Ahead of Hotter Tomorrow - Sep 3, 2 PM

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

Denison residents face oppressive humidity and a chance of storms this afternoon. Temperatures will climb significantly tomorrow, with heat index values reaching 104 degrees.

Briar Iverson

September 3, 20261 min read

National Weather Service radar for North Texas (KFWS)

*As of Sep 3, 2 PM local time.*

Current Conditions and Afternoon Outlook

It is currently Thursday this afternoon in Denison, with the air temperature sitting at 86 degrees. However, the combination of 70 percent relative humidity and a dew point of 75 degrees means the air feels like 95 degrees. The sky is currently cloudy, and winds are blowing from the southeast at 15 mph, though gusts have been recorded at 12 mph.

Residents should be aware of a 26 percent chance of precipitation, with showers and thunderstorms possible before 4 pm. After that time, the likelihood of storms drops to a slight chance. The high for today is expected to be near 91 degrees, with heat index values potentially reaching 100 degrees.

Tonight and Tomorrow’s Forecast

Tonight will bring a slight chance of showers and thunderstorms before 7 pm. The sky will become mostly clear, and temperatures will drop to a low around 75 degrees before rising to about 77 degrees overnight. Winds will shift to the south southeast, ranging from 5 to 15 mph. Heat index values could reach 97 degrees tonight.

Tomorrow looks significantly hotter. The forecast calls for mostly sunny skies with a high near 97 degrees. The heat index is expected to climb as high as 104 degrees, making the air feel extremely oppressive.

Winds will be lighter, coming from the south southeast at 5 to 10 mph. The chance of precipitation is low at 10 percent. With no active National Weather Service alerts in effect, the primary concern is the intense heat and humidity.

It is important to stay hydrated and limit strenuous outdoor activities during the hottest parts of the day, especially as the heat index values rise well above the actual air temperature.

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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