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5-day forecast / Denison, TX

MondaySunny100° / 80° 3%
TuesdaySunny101° / 79° 1%
WednesdaySunny99° / 78° 2%
ThursdaySunny98° / 76° 5%
FridaySunny98° / 74° 4%

Denison Heat Advisory: Highs Near 100F, Humidity Lingers - Sep 14, 6 AM

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

A Heat Advisory is active for Denison. Current conditions show 79F with high humidity. Expect sunny skies and highs near 100F today, with heat indices reaching 104F.

Briar Iverson

September 14, 20262 min read

National Weather Service radar for North Texas (KFWS)

*As of Sep 14, 6 AM local time.*

Heat Advisory in Effect

A Heat Advisory is currently active for the Denison area, issued by the National Weather Service. This moderate-severity alert remains in effect until this evening. Residents should be prepared for sustained high temperatures and elevated heat index values throughout the day.

The combination of intense sun and humidity will make the air feel significantly warmer than the actual air temperature, increasing the risk of heat-related stress for those spending time outdoors.

Current Conditions and Today's Outlook

Right now, the air temperature in Denison is 79 degrees Fahrenheit, but it feels like 82 degrees due to the moisture in the air. Relative humidity stands at 74 percent, with a dew point of 70 degrees, indicating quite humid conditions. Winds are blowing from the south at 9 mph, with gusts reaching 16 mph, under a clear sky.

Today will remain sunny, with the high temperature expected to reach near 100 degrees. The low will be around 80 degrees. The chance of precipitation is minimal at just 3 percent.

As the day progresses, heat index values are expected to climb as high as 104 degrees. South winds will range from 5 to 10 mph, with gusts potentially reaching 20 mph.

Tonight and Tomorrow

Tonight, skies will remain mostly clear. Temperatures will drop to around 80 degrees but are expected to rise back to around 82 degrees overnight. South winds will be around 5 mph.

Tomorrow will follow a similar pattern, with sunny skies and a high near 101 degrees. The low will be around 79 degrees. The chance of rain is only 1 percent.

Heat index values could reach 105 degrees tomorrow. South winds will be around 10 mph. Given the persistent heat and humidity, it is important to stay hydrated and limit strenuous outdoor activities during the hottest parts of the day.

Check on neighbors and ensure pets have access to shade and water.

National Weather Service radar for North Texas (KFWS)

Sources

National Weather Service radar

National Weather Service forecast data

Open-Meteo weather data

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Briar Iverson

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

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