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5-day forecast / Denison, TX

WednesdaySunny101° / 75° 1%
ThursdaySunny95° / 77° 1%
FridayMostly Sunny96° / 80° 1%
SaturdayMostly Sunny99° / 81° 2%
SundaySunny101° / 80° 2%

Extreme Heat Warning in Effect for Denison as Feels-Like Hits 118F - Jul 22, 4 PM

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

An Extreme Heat Warning is active for Denison, TX, with dangerous heat index values reaching 118F today. Residents are urged to take precautions against severe heat.

Briar Iverson

July 22, 20262 min read

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

*As of Jul 22, 4 PM local time.*

Dangerous Heat Conditions Underway

An Extreme Heat Warning is currently in effect for Denison, Texas, signaling severe and dangerous heat conditions for the area. The National Weather Service has issued this alert due to oppressive temperatures that pose significant risks to health and safety. As of this afternoon, the air temperature stands at 99F, but the combination of heat and humidity creates a feels-like temperature of 118F.

This extreme heat index value underscores the severity of the current conditions.

The atmosphere is also holding a significant amount of moisture, with a dew point of 79F and relative humidity at 54%. Winds are blowing from the northeast at 11 mph, with gusts reaching up to 16 mph, while the sky remains clear. These conditions contribute to the intense heat burden residents are experiencing right now.

Forecast for Today and Tomorrow

The National Weather Service forecasts continued sunny skies today with a high near 101F. Heat index values are expected to reach as high as 112 during the day. Northeast winds will remain around 10 mph. There is only a 1% chance of precipitation, so rain is not expected to provide any relief.

Tonight, skies will clear with a low around 75F. However, temperatures are expected to rise to around 77F overnight, keeping heat index values as high as 110. East northeast winds will shift to 5 to 10 mph.

Tomorrow, the heat will persist but with slightly lower highs near 95F. The heat index will still reach 101 under sunny skies, with east winds of 5 to 10 mph. The chance of precipitation remains at 1% for tomorrow as well.

Safety Reminders

Given the Extreme Heat Warning, it is critical to stay safe. Hydrate frequently and limit midday exertion to avoid heat-related illnesses. Check on neighbors, especially the elderly and those without air conditioning, to ensure their well-being. Seek air-conditioned environments during the hottest parts of the day and never leave people or pets in parked vehicles.

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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