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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 Heat Advisory: Dangerous Heat Index Values Expected Through Tomorrow - Sep 8, 2 PM

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

A Heat Advisory is active for Denison as air temperatures reach 97F and feel like 102F. Residents should stay hydrated and limit midday exertion as heat index values climb into the triple digits.

Briar Iverson

September 8, 20262 min read

National Weather Service radar for North Texas (KFWS)

*As of Sep 8, 2 PM local time.*

Dangerous Heat Conditions

A Heat Advisory is currently in effect for the Denison area, signaling dangerous heat conditions that will persist through the coming days. As of this afternoon, the air temperature stands at 97F, but the combination of heat and humidity makes it feel like 102F. The relative humidity is 39%, with a dew point of 68F.

Winds are blowing from the south southeast at 7 mph, with gusts reaching 12 mph. The sky remains clear, allowing direct sunlight to intensify the thermal load on the community.

Forecast Outlook

For the remainder of today, expect mostly sunny skies with a high near 101F. The National Weather Service indicates that heat index values could reach as high as 106F, posing significant risks to anyone spending time outdoors. Precipitation chances are low at 14%.

Tonight, conditions will remain mostly clear with a low around 80F. However, temperatures are expected to rise to around 82F overnight, and heat index values may reach 104F. Winds will continue from the south southeast at 5 to 10 mph.

Tomorrow will bring sunny skies with a high near 100F. While the air temperature is slightly lower than today, the heat index is still expected to reach 103F. The chance of rain drops to just 2%.

Winds will shift to a southerly direction, maintaining speeds between 5 and 10 mph. This pattern of intense heat and low precipitation continues into tomorrow night, where lows will hover around 79F before rising to 81F, with heat index values peaking at 100F.

Safety Reminders

Given the active Heat Advisory, it is crucial to take precautions against heat-related illness. Residents should drink plenty of water throughout the day, even if they do not feel thirsty. Limit outdoor exertion during the hottest parts of the day, and seek air-conditioned environments when possible.

Check on elderly neighbors and those without access to cooling, as they are particularly vulnerable to the effects of prolonged heat exposure. Stay informed by monitoring local weather updates for any changes in the advisory 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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