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5-day forecast / Denison, TX

TuesdaySunny105° / 83° 1%
WednesdaySunny107° / 82° 1%
ThursdaySunny105° / 79° 7%
FridaySunny103° / 79° 5%
SaturdaySunny104° / 79° 7%

Denison Faces Severe Heat Warning with Highs Near 105 - Aug 18, 11 AM

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

An Extreme Heat Warning is active for Denison. Current temperatures are 91F, with today's high expected to reach 105F. Residents should limit midday exertion and stay hydrated.

Briar Iverson

August 18, 20262 min read

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

*As of Aug 18, 11 AM local time.*

Severe Heat Warning in Effect

An Extreme Heat Warning is currently active for the Denison area, issued by the National Weather Service in Fort Worth. This severe alert is expected to remain in place until 8:00 PM CDT. Additionally, a Heat Advisory is in effect until 12:00 PM CDT. These warnings indicate that dangerous heat conditions are expected, requiring residents to take extra precautions to avoid heat-related illness.

Current Conditions and Today's Outlook

It is currently Tuesday morning in Denison. The air temperature stands at 91F, with a feels-like temperature of 91F. Relative humidity is at 36%, and the dew point is 61F.

Winds are blowing from the southwest at 9 mph, with gusts reaching 13 mph. The sky is clear. Today’s high temperature is expected to reach near 105F, with a low near 83F.

The chance of precipitation is minimal at 1%. Heat index values may reach as high as 104F during the day. Southwest winds are forecast to be around 5 mph.

Tonight and Tomorrow

Tonight, conditions will remain mostly clear with a low around 83F. Heat index values could reach 104F. South winds will blow at 5 to 10 mph.

Tomorrow will be sunny, with a high near 107F. Temperatures may fall to around 105F in the afternoon. Heat index values could reach as high as 108F.

South southwest winds are expected to be around 10 mph. The chance of precipitation remains low at 1%. Overnight, temperatures will drop to around 82F, potentially rising to 84F.

Heat index values may reach 106F. South winds will be 5 to 10 mph.

Safety Reminders

Given the severe heat warning, it is crucial to stay hydrated and limit outdoor activities during the hottest parts of the day. Check on elderly neighbors and those without access to air conditioning. Avoid prolonged exposure to direct sunlight and wear lightweight, light-colored clothing when outside.

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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