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5-day forecast / Denison, TX

ThursdaySunny99° / 80° 1%
FridaySunny98° / 79° 1%
SaturdaySunny97° / 78° 1%
SundayShowers And Thunderstorms Likely92° / 73° 60%
MondayChance Showers And Thunderstorms90° / 74° 29%

Denison Heat Persists: Highs Near 99F and Humid Conditions Continue - Jul 9, 12 PM

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

Denison faces another day of intense heat with temperatures near 99F and a feels-like reading of 96F. Humidity remains elevated with a dew point of 72F, creating muggy conditions across the area.

Briar Iverson

July 9, 20261 min read

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

*As of Jul 9, 12 PM local time.*

Current Conditions and Heat Index

Denison is currently experiencing very hot conditions this afternoon. The air temperature stands at 90F, but the combination of heat and moisture pushes the feels-like temperature to 96F. Relative humidity is at 56%, with a dew point of 72F, indicating quite humid air. Winds are blowing at 15 mph, though gusts are reported at 14 mph. The sky remains clear overhead.

Today and Tonight Forecast

Today will be sunny with a high near 99F. The National Weather Service indicates heat index values as high as 103 during the day. Southwest winds will be around 10 mph. The chance of precipitation is just 1%. As evening approaches, skies will become mostly clear. Temperatures will drop to a low near 79F, though they may rise slightly to around 81F overnight. Heat index values will remain elevated, reaching as high as 101. South winds will continue around 10 mph.

Tomorrow Outlook

Tomorrow will also be sunny with a high near 98F. Heat index values are expected to reach as high as 100. South southwest winds will be around 10 mph. The chance of precipitation is 2%. Overnight, skies will be clear with a low around 78F. Heat index values will drop slightly but remain high at 99. South winds will ease to 5 to 10 mph.

Safety Reminder

With heat index values exceeding 100F today and tomorrow, it is crucial to stay hydrated and limit midday exertion. Check on neighbors, especially the elderly and those without air conditioning. Wear lightweight, light-colored clothing and seek air-conditioned spaces during the hottest parts of the day. There are no active weather alerts at this time, but the persistent heat requires caution.

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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