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5-day forecast / Denison, TX

WednesdaySunny then Slight Chance Showers And Thunderstorms97° / 79° 16%
ThursdaySunny99° / 78° 1%
FridaySunny98° / 79°
SaturdaySunny96° / 75° 6%
SundayChance Showers And Thunderstorms94° / 76° 38%

Denison Heat Index Hits 101 Today With Slight Storm Chance - Jul 8, 12 PM

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

Denison faces very hot conditions today with a high near 97F and heat index values up to 101F. A slight chance of showers and thunderstorms is possible after 4pm.

Briar Iverson

July 8, 20261 min read

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

*As of Jul 8, 12 PM local time.*

Current Conditions and Heat

Denison is experiencing very hot conditions this afternoon, with the air temperature at 90F and a feels-like temperature of 96F. The relative humidity stands at 56%, with a dew point of 72F, creating a humid atmosphere. Winds are blowing from the southwest at 9 mph, with gusts reaching 10 mph, under a clear sky.

Today and Tonight Forecast

Today, the high will reach near 97F. The National Weather Service indicates sunny skies initially, with a slight chance of showers and thunderstorms developing after 4pm. The heat index values are expected to climb as high as 101F. The chance of precipitation is 20%. Winds will shift to the southwest around 5 mph.

Tonight, conditions will remain mostly clear with a low around 79F. There is a slight chance of showers and thunderstorms before 7pm. The heat index may reach up to 100F. South winds will range from 5 to 10 mph. The chance of precipitation remains at 20%.

Tomorrow Outlook

Tomorrow, Denison will see sunny skies with a high near 99F. The heat index values are forecast to reach as high as 102F. South southwest winds will be around 10 mph. The chance of precipitation drops to just 1%. Temperatures will remain elevated, requiring caution during outdoor activities.

Safety Reminder

Given the high heat index values, it is important to stay hydrated and limit midday exertion. Check on neighbors, especially the elderly and those without air conditioning. While there are no active weather alerts, the combination of heat and humidity can be dangerous. Be prepared for the slight chance of storms later today and tonight by having a safe place to go if severe weather develops.

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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