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5-day forecast / McKinney, TX

FridaySlight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms97° / 77° 25%
SaturdaySunny100° / 77° 4%
SundaySunny99° / 77° 2%
MondaySunny99° / 78° 1%
TuesdaySunny99° / 77° 2%

McKinney Heat Advisory Active as Temperatures Near 105F - Aug 22, 2 PM

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

A Heat Advisory is in effect for McKinney as afternoon temperatures reach 97F, feeling like 101F. An Air Quality Alert is also active. Expect highs near 105F today and 107F tomorrow with low rain chances.

Cody Esparza

August 22, 20262 min read

National Weather Service radar for North Texas (KFWS)

*As of Aug 22, 2 PM local time.*

Current Conditions and Active Alerts

McKinney residents are currently experiencing dangerous heat levels this afternoon. The air temperature stands at 97F, but the heat index makes it feel like 101F. Relative humidity is at 37%, and the dew point is 66F.

Winds are blowing from the south southeast at 10 mph, with gusts recorded at 6 mph. The sky is currently clear. Two active National Weather Service alerts are in place for the area.

A Heat Advisory, issued by the National Weather Service Fort Worth office, is expected to remain in effect until 8:00 PM CDT. Additionally, an Air Quality Alert has been issued, indicating elevated levels of pollutants that may affect sensitive groups.

Today and Tonight Outlook

The day will remain mostly sunny with a high near 105F. Heat index values could reach as high as 108F. The chance of precipitation is low at 6%.

As evening approaches, a slight chance of showers and thunderstorms exists between 7 PM and 4 AM. Skies will become partly cloudy, and temperatures will drop to a low near 81F, though they may rise to around 83F overnight. The heat index could still reach 106F during these hours.

Winds will continue from the south southeast at around 5 mph. The chance of precipitation increases slightly to 20% during this overnight window.

Tomorrow's Forecast

Tomorrow will bring even hotter conditions, with a high near 107F and a low near 85F. The sky will be mostly sunny, and the chance of precipitation is minimal at 9%. Heat index values are expected to peak at 109F.

Winds will shift to the south southwest, ranging from 5 to 10 mph. Given the extreme heat and active air quality concerns, it is crucial to stay hydrated and limit outdoor exertion during the hottest parts of the day. Check on neighbors and ensure pets have access to shade and water.

Monitor local air quality updates and take necessary precautions if you have respiratory sensitivities.

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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