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5-day forecast / Denison, TX

SaturdayMostly Sunny95° / 77° 4%
SundaySunny97° / 77° 3%
MondaySunny98° / 77°
TuesdaySunny101° / 79°
WednesdaySunny100° / 79° 1%

Denison Heat Index Hits 95F Tonight With High Humidity - Jul 17, 8 PM

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

Temperatures in Denison are soaring this evening with a feels-like temperature of 95F. Humidity remains high, and heat index values will climb further overnight.

Briar Iverson

July 18, 20262 min read

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

*As of Jul 17, 8 PM local time.*

Current Conditions and Heat Index

It is currently Friday evening in Denison, TX, and the heat is palpable. The air temperature stands at 88F, but the combination of heat and moisture pushes the feels-like temperature to a sweltering 95F. Relative humidity is sitting at 57%, with a dew point of 71F, creating a muggy atmosphere that makes the warmth feel more intense than the thermometer suggests.

Winds are blowing from the south at 11 mph, with gusts reaching 16 mph, while the sky remains clear overhead.

Forecast for Tonight and Tomorrow

Looking ahead, the heat will not dissipate quickly. Tonight, conditions will shift to mostly cloudy skies with a low near 76F. The heat index is expected to rise even higher, reaching values as high as 97F. South winds will ease to 5 to 10 mph, though gusts may still hit 20 mph. There is a 20% chance of precipitation during these hours.

Tomorrow brings a change in cloud cover but not in temperature. The sky will be mostly sunny with a high near 95F. The heat index will climb to 100F, signaling dangerous heat levels.

Winds will remain light from the south southwest at 5 to 10 mph. The chance of precipitation drops significantly to just 4%. Tomorrow night, skies will clear out to mostly clear conditions with a low around 77F.

The heat index will remain elevated at 99F, with south winds continuing at 5 to 10 mph.

Safety and Alerts

There are no active National Weather Service or NOAA weather alerts in effect for Denison at this time. However, the extreme heat index values warrant caution. Residents should stay hydrated and limit prolonged outdoor exertion, especially during the peak heat of the day.

Check on elderly neighbors and ensure pets have access to cool, shaded areas. The combination of high temperatures and humidity can lead to heat-related illnesses quickly, so please take necessary precautions to stay safe and comfortable.

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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