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5-day forecast / Denison, TX

MondaySunny99° / 79°
TuesdaySunny100° / 80° 1%
WednesdaySunny100° / 80°
ThursdaySunny101° / 79°
FridaySunny101° / 79°

Heat Advisory in Effect for Denison as Temperatures Climb Near 100 - Aug 10, 12 PM

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 99F. Highs near 99F expected today and tomorrow with heat indices reaching 104F.

Briar Iverson

August 10, 20262 min read

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

*As of Aug 10, 12 PM local time.*

Current Conditions and Alert Status

Denison, TX, is currently under an active Heat Advisory issued by the National Weather Service. This moderate-severity alert, which carries an expected urgency level, remains in effect until August 11 at 8:00PM CDT. The advisory highlights the significant heat stress residents will face over the next several days.

Right now, the air temperature stands at 91F, but the combination of heat and moisture makes it feel like 99F. Relative humidity is at 53%, with a dew point of 72F indicating quite humid conditions. Winds are blowing from the south at 11 mph, with gusts matching that speed, under a clear sky.

Forecast for Today and Tonight

The National Weather Service forecasts sunny skies today with a high near 99F. Heat index values are expected to reach as high as 102 during the afternoon hours. South winds will range from 5 to 10 mph. The chance of precipitation is minimal at just 1%.

Tonight, conditions will shift to mostly clear skies. Temperatures will drop to a low around 79F, though they may rise slightly to around 81F overnight. Despite the cooling trend, heat index values could still reach 100. South winds will persist around 10 mph. The chance of rain remains negligible at 1%.

Outlook for Tomorrow

Tomorrow will see a return to sunny conditions with a high near 99F. The heat will intensify, with heat index values climbing as high as 104. South winds will continue at 5 to 10 mph. There is no significant chance of precipitation, forecast at 1%.

Following tomorrow, clear skies are expected for the night with a low around 81F. Temperatures may rise to around 83F overnight, with heat indices reaching 103. South winds will remain around 10 mph.

Safety Reminder

Given the active Heat Advisory and high heat index values, it is crucial to stay hydrated and limit prolonged outdoor exertion during peak heat hours. Check on elderly neighbors or those without air conditioning, as the humidity and heat can pose serious health risks even at night.

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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