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5-day forecast / Denison, TX

SaturdaySunny100° / 80° 2%
SundaySunny103° / 79° 1%
MondaySunny104° / 79° 1%
TuesdaySunny103° / 80°
WednesdaySunny103° / 80° 1%

Heat Advisory in Effect for Denison as Temperatures Hit 100F - Aug 14, 5 PM

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

A Heat Advisory is active for Denison, TX, with current temperatures at 100F and a feels-like reading of 105F. Residents are urged to take precautions against dangerous heat.

Briar Iverson

August 14, 20262 min read

National Weather Service radar for North Texas (KFWS)
National Weather Service radar for North Texas (KFWS)

*As of Aug 14, 5 PM local time.*

Dangerous Heat Conditions

Denison, Texas, is currently under an active Heat Advisory issued by the National Weather Service in Fort Worth. The advisory carries a moderate severity rating with expected urgency, signaling that conditions are becoming hazardous for prolonged outdoor exposure. As of this Friday evening, the air temperature stands at 100F, but the heat index makes it feel like 105F.

Relative humidity is at 33% with a dew point of 66F. Winds are blowing from the south at 10 mph, with gusts reaching up to 21 mph under clear skies.

Forecast for Today and Tomorrow

The National Weather Service forecasts continued hot conditions through the weekend. Today is expected to be sunny with a high near 101F and a low around 80F. There is no chance of precipitation, and heat index values may reach as high as 104F during the day. South winds will remain around 10 mph, with gusts up to 20 mph.

Tonight will be clear with a low near 80F. The heat index could stay as high as 102F overnight. Winds will shift slightly, coming from the south at 10 to 15 mph.

Tomorrow is also forecast to be sunny, with a high near 100F and a low around 80F. Precipitation chances remain negligible at just 2%. Heat index values are expected to climb back up to 104F. Winds will come from the south southwest at around 10 mph.

Safety Reminders

Given the active advisory and extreme heat indices, residents should prioritize safety. Hydrate frequently and limit midday exertion to avoid heat-related illnesses. Check on neighbors, especially the elderly or those without air conditioning, to ensure they are safe in the rising temperatures. Keep vehicles parked in shade when possible to prevent interior overheating.

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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