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5-day forecast / McKinney, TX

TuesdaySunny102° / 80°
WednesdaySunny101° / 81° 1%
ThursdayMostly Sunny101° / 81° 2%
FridayMostly Sunny103° / 82° 6%
SaturdaySunny100° / 76° 7%

Heat Advisory in Effect for McKinney as Temperatures Climb - Jul 24, 4 PM

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

A Heat Advisory is active for McKinney, TX, with heat indices reaching 109F tomorrow. Current conditions are hot and humid, with a feels-like temperature of 98F.

Cody Esparza

July 24, 20262 min read

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

*As of Jul 24, 4 PM local time.*

Current Conditions and Alert Status

A Heat Advisory is currently in effect for McKinney, Texas, signaling dangerous heat levels for the region. The National Weather Service has issued this moderate-severity alert due to the combination of high temperatures and humidity. As of this Friday afternoon, the air temperature stands at 90F, but the heat index makes it feel like 98F.

The atmosphere is quite humid, with a dew point of 73F and relative humidity at 59%. Winds are blowing from the south at 10 mph, with gusts reaching 14 mph, while the sky remains cloudy.

Forecast for Today and Tomorrow

Today, residents can expect a high near 96F with a low around 80F. There is a slight chance of rain showers before 4pm, though the overall chance of precipitation is only 3%. The heat index is expected to peak at 106 during the day. Winds will remain around 10 mph with gusts up to 20 mph.

Tonight, skies will be partly cloudy with a low near 80F. The heat index will remain elevated at 105. South winds will continue around 10 mph with gusts as high as 20 mph.

Tomorrow brings even hotter conditions with a high near 99F and a low of 80F. The sky will be mostly sunny, and the chance of precipitation drops to 1%. The heat index is forecast to reach 109.

Winds will shift to the south-southwest at around 10 mph. Tomorrow night will be clear with a low around 80, though temperatures may rise to 82 overnight. The heat index will stay high at 108, with south winds between 5 and 10 mph.

Safety Reminders

With heat indices approaching 109F, it is critical to stay cool and hydrated. Limit outdoor exertion, especially during the hottest parts of the day. Wear lightweight, light-colored clothing and seek air-conditioned environments when possible. Check on neighbors, particularly the elderly and those without air conditioning, to ensure their safety during this advisory period.

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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