Humid Heat Persists in Denison; Scattered Storms Possible Tomorrow - Jul 11, 12 PM
Denison weather, updated every four hours — local forecasts you can trust.
Denison faces high humidity with a dew point of 72F today. Temperatures will peak near 98F. A slight chance of showers and thunderstorms is expected tomorrow.
Briar Iverson
July 11, 2026/2 min read
National Weather Service radar for North Texas (KFWS)
*As of Jul 11, 12 PM local time.*
Current Conditions and Humidity
Denison is experiencing quite humid conditions this afternoon. The air temperature stands at 88F, but the heat index makes it feel like 94F. Relative humidity is at 59%, with a dew point of 72F indicating significant moisture in the air. Winds are blowing from the south at 9 mph, with gusts reaching 11 mph. The sky remains clear overhead.
Today and Tonight Forecast
Today will be sunny with a high near 98F. The National Weather Service notes heat index values as high as 104 during the day. South winds will range from 5 to 10 mph. The chance of precipitation is just 1%.
Tonight, skies will be mostly clear with a low around 77F. Heat index values may still reach up to 104. South winds will decrease to around 5 mph. Residents should stay hydrated and limit midday exertion given the oppressive heat and humidity.
Tomorrow Outlook
Tomorrow brings a shift in conditions with a high near 93F. Temperatures are expected to fall to around 91F in the afternoon. The chance of precipitation rises to 42%, with a slight chance of showers and thunderstorms between 7am and 1pm. This is followed by a chance of showers and thunderstorms between 1pm and 4pm, and a continued chance later. Skies will be mostly sunny. Heat index values will be as high as 102. South southwest winds will be light, ranging from 0 to 5 mph. New rainfall amounts between a tenth and quarter of an inch are possible.
There are no active National Weather Service or NOAA weather alerts in effect for Denison at this time. While the heat remains a concern today, tomorrow’s potential storms may offer some relief from the humidity. Keep an eye on the sky as the day progresses.
National Weather Service radar for North Texas (KFWS)
Denison wakes up with a dew point of 70F. Today brings sunny skies and a high near 98F with heat indices up to 104. Tomorrow sees a chance of showers and thunderstorms.
Temperatures in Denison remain very hot this Friday evening with a feels-like temperature of 98F. Clear skies continue through tonight and tomorrow, with heat index values climbing toward 101 degrees.
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