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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 and Air Quality Alert: 99F Afternoon - Aug 28, 2 PM

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

McKinney residents face dangerous heat with temperatures near 100F and an active Air Quality Alert. Expect sunny skies and low humidity today and tomorrow, with heat index values reaching 106F.

Cody Esparza

August 28, 20262 min read

National Weather Service radar for North Texas (KFWS)

*As of Aug 28, 2 PM local time.*

Dangerous Heat and Air Quality Concerns

McKinney is currently experiencing dangerous heat conditions this afternoon. The air temperature stands at 99F, with a feels-like value of 100F. An active Air Quality Alert has been issued by the National Weather Service, prompting residents to be mindful of outdoor air quality. While the sky is clear, the combination of high heat and potential air quality issues requires caution for those spending time outside.

Current conditions show a relative humidity of 31% and a dew point of 63F. Winds are blowing from the east-northeast at around 5 mph, with gusts reaching 30 mph. The dry air contributes to the intense heat, making the perceived temperature feel even warmer than the actual air temperature.

Forecast for Today and Tomorrow

Today will remain sunny with a high near 100F and a low near 76F. The chance of precipitation is minimal at 1%. Heat index values are expected to reach as high as 103F. Tonight, skies will stay clear with a low around 76F. Heat index values may reach 101F, and winds will shift to the east at around 5 mph.

Tomorrow brings similar conditions, with sunny skies and a high near 101F. The low will be around 78F, with temperatures rising to around 80F overnight. The chance of rain remains at 1%.

Heat index values are forecast to peak at 106F, making it the hottest part of the upcoming period. Winds will be from the southeast at 0 to 10 mph. Tomorrow night will be mostly clear with a low around 78F.

Safety Reminders

Given the extreme heat and active air quality alert, it is crucial to stay hydrated and limit midday exertion. Check on neighbors, especially those who are elderly or have health conditions. Avoid prolonged outdoor exposure during the hottest parts of the day. Monitor local updates for any changes in air quality or weather conditions.

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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