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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 Soar - Jul 23, 4 PM

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

A Heat Advisory is active for McKinney, TX, with heat index values reaching 107F today. Current conditions show a high of 93F with a feels-like of 103F.

Cody Esparza

July 23, 20262 min read

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

*As of Jul 23, 4 PM local time.*

Dangerous Heat Conditions

A Heat Advisory is currently in effect for McKinney, Texas, signaling dangerous heat conditions for the area. The National Weather Service has issued this moderate severity alert due to the combination of high temperatures and humidity. Right now, the air temperature stands at 93F, but the heat index makes it feel like 103F.

The atmosphere is holding significant moisture, with a dew point of 73F and relative humidity at 53%. Winds are blowing from the east at 13 mph, with gusts reaching up to 20 mph, while the sky remains mostly clear.

Forecast for Today and Tomorrow

Today will be sunny with a high near 98F. The heat index is expected to climb as high as 107F. East winds will continue at 10 to 15 mph, with gusts potentially hitting 25 mph.

There is no chance of precipitation today. Tonight, skies will clear to mostly clear with a low around 79F. The heat index will remain elevated, reaching up to 105F.

Winds will shift to east southeast at 10 to 15 mph, with gusts as high as 25 mph.

Tomorrow, the region will see partly sunny skies. The high will be near 97F, though temperatures may drop to around 95F in the afternoon. The heat index will stay high at 105F.

Winds will turn south southeast at 10 to 15 mph, with gusts up to 25 mph. The chance of precipitation is minimal at 2%. Overnight, skies will become partly cloudy with a low around 80F, and temperatures may rise slightly to around 82F during the night.

The heat index will remain at 105F with south winds at 10 to 15 mph and gusts up to 25 mph.

Safety Reminders

Given the active Heat Advisory and the high heat index values, it is crucial to take precautions. Stay hydrated by drinking plenty of water throughout the day. Limit outdoor exertion, especially during the hottest parts of the day.

Check on neighbors and vulnerable individuals who may be affected by the extreme heat. If you must be outside, seek shade and wear lightweight, light-colored clothing to help manage the heat.

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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