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5-day forecast / Denison, TX

FridaySlight Chance Showers And Thunderstorms then Mostly Sunny96° / 77° 19%
SaturdaySunny100° / 78° 3%
SundaySunny99° / 78°
MondaySunny98° / 78° 1%
TuesdaySunny99° / 78° 2%

Denison Faces Extreme Heat Warning and Dangerous Afternoon Conditions - Aug 25, 2 PM

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

Denison residents are under an Extreme Heat Warning as temperatures reach 99F, feeling like 102F. Today's high nears 106F with strong winds. A slight chance of rain is expected tomorrow.

Briar Iverson

August 25, 20262 min read

National Weather Service radar for North Texas (KFWS)

*As of Aug 25, 2 PM local time.*

Dangerous Heat Conditions

An Extreme Heat Warning is currently active for the Denison area, accompanied by a Heat Advisory. These alerts highlight the severe thermal stress expected in the region. Right now, the air temperature stands at 99F, but the combination of heat and humidity makes it feel like 102F.

The relative humidity is 33%, and the dew point is 64F. Winds are blowing from the south southwest at 17 mph, with gusts reaching 23 mph. The sky remains clear, allowing direct solar radiation to intensify the heat.

Residents should be aware that these conditions pose significant risks to health, particularly for those spending extended time outdoors.

Today's Forecast and Outlook

Today will remain sunny with a high near 106F. The heat index values are expected to reach as high as 106F, indicating dangerous levels of perceived temperature. Winds will continue from the south southwest around 15 mph, with gusts potentially hitting 25 mph.

The chance of precipitation is minimal at 4%. Tonight, skies will be mostly clear, and temperatures will drop to a low near 82F, though they may rise to around 84F overnight. The heat index will remain high at 104F, with winds easing to 10-15 mph.

Tomorrow's Weather

Tomorrow brings a slight chance of rain showers between 7am and 1pm, followed by a slight chance of showers and thunderstorms. The sky will be mostly sunny, with a high near 100F. The heat index will still reach 105F.

Winds will shift to the west northwest at 5-10 mph, with gusts up to 20 mph. The overall chance of precipitation is 22%. Given the persistent heat, it is crucial to stay hydrated, limit midday exertion, and check on vulnerable neighbors.

Avoid prolonged exposure to direct sunlight and seek air-conditioned environments when possible.

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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