Humid Start in Denison: Highs Near 98 Today, Storms Possible Tomorrow - Jul 11, 4 AM
Denison weather, updated every four hours — local forecasts you can trust.
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.
Briar Iverson
July 11, 2026/2 min read
National Weather Service radar for North Texas (KFWS)
*As of Jul 11, 4 AM local time.*
Current Conditions and Humidity
It is currently Saturday overnight in Denison, TX, and the air feels quite heavy with moisture. The current air temperature sits at 80F, but the feels-like temperature is 83F due to the humidity. The relative humidity is at 70%, with a dew point of 70F.
Winds are blowing from the south southwest at 10 mph, with gusts reaching up to 21 mph. The sky remains clear as the night progresses.
Today and Tonight Forecast
Today will be sunny with a high near 98F. The National Weather Service indicates heat index values as high as 104, making it feel significantly hotter than the actual air temperature. Winds will continue from the south southwest at 5 to 10 mph.
The chance of precipitation is very low at 2%. As tonight approaches, skies will remain clear with a low around 78F. Winds will shift slightly to the south at around 5 mph.
The heat index will remain elevated, with values as high as 104 noted in the forecast data.
Tomorrow Outlook and Safety
Tomorrow, conditions will shift with a high near 93F. Temperatures are expected to fall to around 91F in the afternoon. The sky will be mostly sunny, but there is a chance of precipitation.
A slight chance of showers and thunderstorms is expected between 7am and 1pm, followed by a chance of showers and thunderstorms between 1pm and 4pm. Winds will be light, from the south southwest at 0 to 5 mph. The heat index will reach as high as 102.
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 this area. However, given the high heat indices and humidity, residents should stay hydrated and limit midday exertion. As the week progresses, keep an eye on the sky for developing storms, especially during the afternoon hours tomorrow.
National Weather Service radar for North Texas (KFWS)
Residents in Denison are facing dangerous heat conditions with a current feels-like temperature of 102 degrees. While skies are clear now, a chance of showers and thunderstorms is expected later today and tomorrow.
A Heat Advisory is active for Denison as air temperatures reach 95F and heat index values climb to 104F. Residents should stay hydrated and limit midday exertion.
A Heat Advisory is active for Denison as air temperatures reach 97F and feel like 102F. Residents should stay hydrated and limit midday exertion as heat index values climb into the triple digits.
