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5-day forecast / Denison, TX

MondaySunny104° / 79° 3%
TuesdaySunny105° / 81° 2%
WednesdaySunny104° / 80° 2%
ThursdaySunny104° / 78° 8%
FridaySlight Chance Showers And Thunderstorms then Sunny102° / 77° 15%

Denison Heat Advisory: Dangerous Heat Continues with Highs Near 104 - Aug 16, 5 PM

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

A Heat Advisory is active for Denison as temperatures hover near 100F. Expect sunny skies, low humidity, and heat index values reaching 107F through tomorrow.

Briar Iverson

August 16, 20262 min read

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

*As of Aug 16, 5 PM local time.*

Current Conditions and Alert Status

A Heat Advisory is currently active for the Denison area, issued by the National Weather Service in Fort Worth. This moderate-severity alert is expected to remain in effect until tomorrow evening. Residents should be aware that dangerous heat conditions are present right now.

The current air temperature stands at 100F, with a feels-like temperature of 101F. The sky is clear, and relative humidity is low at 27%. The dew point is 61F, and winds are blowing from the southwest at 7 mph with gusts reaching 11 mph.

These dry conditions contribute to the rapid heating of the air and the high heat index values reported by the National Weather Service.

Today and Tonight Outlook

Today’s forecast calls for sunny skies with a high near 103F. The heat index values are expected to reach as high as 107F, making the air feel significantly hotter than the actual temperature. Southwest winds will remain light, averaging around 5 mph.

As evening approaches, temperatures will drop to a low near 79F, though they may rise slightly to around 81F overnight. The sky will remain clear, and the heat index will stay elevated, reaching up to 104F. South southwest winds will continue to blow at approximately 5 mph.

The chance of precipitation is negligible, with a 0% probability of rain today.

Tomorrow’s Forecast and Safety

Tomorrow will bring similar conditions, with sunny skies and a high near 104F. The heat index values are projected to reach 107F again, maintaining dangerous heat levels. West winds will average around 5 mph.

The chance of precipitation remains very low at 3%. Overnight, temperatures will fall to a low near 79F before rising to about 81F. The sky will be mostly clear, and the heat index will reach 106F.

Given the sustained high temperatures and low humidity, it is crucial to take precautions. Stay hydrated by drinking plenty of water, limit outdoor exertion during the hottest parts of the day, and check on elderly neighbors or those without access to air conditioning. Avoid leaving pets or children in parked vehicles, as temperatures can rise rapidly in enclosed spaces.

Monitor local weather updates for any changes to the advisory status.

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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