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5-day forecast / Denison, TX

WednesdayMostly Sunny100° / 78° 1%
ThursdayMostly Sunny101° / 80° 5%
FridayMostly Sunny103° / 78° 5%
SaturdaySunny95° / 72° 11%
SundaySunny93° / 72° 1%

Heat Advisory in Effect for Denison as Temperatures Climb - Jul 29, 12 PM

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

A Heat Advisory is active for Denison, TX, with heat index values reaching 103F today. Residents are urged to take precautions against dangerous heat.

Briar Iverson

July 29, 20262 min read

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

*As of Jul 29, 12 PM local time.*

Current Conditions and Alert Status

A Heat Advisory is currently in effect for Denison, Texas, signaling moderate severity and expected urgency. The National Weather Service has issued this alert to warn of dangerous heat conditions. As of this afternoon, the air temperature stands at 93F, but the combination of heat and humidity makes it feel like 103F.

The relative humidity is at 53%, with a dew point of 73F, indicating quite humid conditions that contribute to the elevated heat index. Winds are light, blowing from the south at 6 mph with gusts reaching 9 mph, under a clear sky.

Forecast for Today and Tomorrow

Today, the sky will remain mostly sunny with a high near 100F. The heat index is expected to reach as high as 103F. South winds will hover around 5 mph.

The chance of precipitation is minimal at 2%. Temperatures will drop to a low near 78F tonight, though they may rise to around 80F overnight. Skies will become partly cloudy, and the heat index could still reach 101F.

Winds will remain south around 5 mph.

Tomorrow, conditions will stay mostly sunny with a high near 101F. The heat index is forecast to climb even higher, reaching up to 106F. South southwest winds will continue around 5 mph.

The chance of precipitation remains low at 5%. Overnight, skies will turn mostly clear with a low around 80F, potentially rising to 82F. The heat index may reach 105F during the night.

Winds will shift back to the south at around 5 mph.

Safety Reminders

Given the active Heat Advisory and the high heat index values, it is crucial to stay hydrated and limit midday exertion. Check on neighbors, especially the elderly and those without air conditioning. Avoid prolonged exposure to the sun and seek air-conditioned environments when possible.

The combination of high temperatures and humidity poses significant health risks, so please take these warnings seriously to ensure your safety and comfort during this period of intense heat.

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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