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5-day forecast / Denison, TX

MondayPartly Sunny79° / 60°
TuesdayPartly Sunny80° / 62° 5%
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Denison Heat Advisory: Dangerous Heat Index Expected Through Evening - Sep 6, 2 PM

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

A Heat Advisory is active for Denison as temperatures reach 97F and feel like 102F. Residents should stay hydrated and limit outdoor activity during peak heat hours.

Briar Iverson· AI-assisted, edited by Jake Team

September 6, 20262 min read

National Weather Service radar for North Texas (KFWS)

*As of Sep 6, 2 PM local time.*

Current Conditions and Alert Status

A Heat Advisory is currently in effect for the Denison area, issued by the National Weather Service in Fort Worth. This moderate-severity alert remains active until this evening. As of this afternoon, the air temperature stands at 97 degrees Fahrenheit, but the combination of heat and humidity makes it feel like 102 degrees.

The relative humidity is 39 percent, with a dew point of 68 degrees. Winds are blowing from the east-southeast at 13 miles per hour, though gusts have been recorded at 10 miles per hour. The sky is mainly clear, offering little relief from the direct solar radiation.

Today's Outlook and Evening Forecast

Residents can expect a high near 100 degrees today, with heat index values potentially reaching 103 degrees. There is a slight chance of showers and thunderstorms after 4 p.m., with a 12 percent probability of precipitation. As the day transitions into the evening, the chance for storms remains slight before 7 p.m.

The sky will remain mostly clear, and temperatures will drop to a low near 79 degrees. Heat index values may still reach 102 degrees during the early evening hours. Winds will shift to the south, ranging from 0 to 5 miles per hour.

Tomorrow's Forecast and Safety Reminders

Tomorrow will bring similar conditions, with a high near 101 degrees and a low near 79 degrees. The sky is expected to be sunny, and the chance of precipitation drops to just 6 percent. Heat index values could climb as high as 106 degrees, making the perceived temperature significantly higher than the actual air temperature.

Winds will come from the south-southeast at 0 to 10 miles per hour. Given the persistent dangerous heat, it is crucial to stay hydrated and limit midday exertion. Check on neighbors and vulnerable individuals who may not have access to air conditioning.

Avoid prolonged exposure to direct sunlight, and seek cool indoor environments during the hottest parts of the day.

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· AI-assisted, edited by Jake Team

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

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