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5-day forecast / Denison, TX

ThursdaySunny102° / 79° 1%
FridaySunny100° / 80°
SaturdaySunny101° / 80°
SundaySunny102° / 79° 1%
MondaySunny104° / 79° 1%

Heat Advisory in Effect for Denison as Temperatures Soar Near 102 - Aug 13, 11 AM

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

A Heat Advisory is active for Denison, TX, with current feels-like temperatures at 91F. Today's high will reach near 102F with heat indices up to 105F.

Briar Iverson

August 13, 20262 min read

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

*As of Aug 13, 11 AM local time.*

Current Conditions and Alert Status

Denison, TX, is currently under an active Heat Advisory issued by the National Weather Service in Fort Worth. This moderate-severity alert, expected to remain in effect through the evening, underscores the dangerous heat conditions gripping the area right now. As of this morning, the air temperature stands at 88F, but the combination of heat and humidity pushes the feels-like temperature to 91F.

The relative humidity is at 52%, with a dew point of 68F. Winds are blowing from the south southwest at 16 mph, with gusts reaching up to 22 mph, while the sky remains clear.

Forecast for Today and Tonight

The National Weather Service forecasts a sunny day ahead with a high near 102F. Heat index values are expected to climb as high as 105 during peak afternoon hours. South southwest winds will persist at speeds between 10 to 15 mph. The chance of precipitation is minimal at just 1%.

As the sun sets, conditions will remain clear tonight. Temperatures will drop to a low near 79F, though they may rise slightly to around 81F during the overnight hours. Heat indices will still reach as high as 102. South winds will continue at around 15 mph. Despite the cooling trend, the heat will linger well into the night.

Outlook for Tomorrow

Tomorrow will also be sunny with a high near 100F. Heat index values are projected to peak at 102. South winds will maintain speeds of 10 to 15 mph. The chance of rain is 0%. Overnight, skies will clear with a low around 80F and heat indices up to 101.

Safety Reminders

Given the active Heat Advisory and extreme temperatures, residents are urged to take precautions seriously. Stay hydrated by drinking plenty of water throughout the day, even if you do not feel thirsty. Limit outdoor exertion, especially during midday hours when the sun is strongest.

Check on elderly neighbors or those without air conditioning to ensure their safety. If you must be outside, seek shade frequently and wear lightweight, light-colored clothing to help manage body temperature.

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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