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5-day forecast / McKinney, TX

TuesdaySunny100° / 79° 1%
WednesdaySunny100° / 79°
ThursdaySunny101° / 78°
FridaySunny101° / 79°
SaturdaySunny100° / 79°

Heat Advisory in Effect for McKinney as Temperatures Climb Toward 100 Degrees - Aug 10, 8 PM

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

A Heat Advisory is active for McKinney, TX, with current feels-like temperatures at 96F. Conditions remain clear today before heating up to a high near 100F tomorrow.

Cody Esparza

August 11, 20262 min read

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

*As of Aug 10, 8 PM local time.*

Current Conditions and Alert Status

A Heat Advisory remains in effect for McKinney, Texas, signaling moderate severity and expected urgency from the National Weather Service. As of this evening, the air temperature stands at 91F, but the combination of heat and humidity pushes the feels-like temperature to 96F. The relative humidity is currently at 46%, with a dew point of 68F.

Winds are blowing from the south at 8 mph, with gusts reaching up to 16 mph under clear skies.

This advisory highlights the dangerous heat levels residents are facing. It is crucial to stay hydrated and limit time spent outdoors during the peak heat hours. The National Weather Service has issued this alert to warn of the potential for heat-related illnesses as temperatures remain elevated.

Forecast Overview

Today, McKinney will see clear skies with a high near 97F and a low around 78F. There is no chance of precipitation, leaving the atmosphere dry and stable. As tonight approaches, conditions will remain clear.

Temperatures will drop to a low of approximately 78F but will rise slightly to around 80F later in the night. Heat index values are expected to reach as high as 102. South winds will increase to 10 to 15 mph.

Tomorrow, the heat will intensify significantly. The sky will be sunny with a high near 100F and a low around 79F. The chance of precipitation is minimal at just 1%.

Heat index values are forecasted to climb as high as 109, making it feel extremely hot. South winds will persist around 10 mph, with gusts potentially hitting 20 mph. Tomorrow night will bring mostly clear skies, with a low near 79F and temperatures rising to about 81F overnight.

Heat indices will remain high at up to 105, with south winds continuing at 10 to 15 mph.

Safety Reminders

Given the active Heat Advisory and forecasted heat indices exceeding 100 degrees, residents should take precautions seriously. Drink plenty of water even if you do not feel thirsty, and avoid strenuous outdoor activities during the hottest parts of the day. Check on elderly neighbors or those without air conditioning to ensure their safety.

Keep vehicles parked in shade when possible, as interior temperatures can rise rapidly.

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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Cody Esparza

Cody Esparza covers McKinney city hall, the council, and county government.

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