Heat Advisory in Effect for McKinney as Temperatures Soar Near 103F - Jul 31, 9 AM

*As of Jul 31, 9 AM local time.*

Extreme Heat Underway

A Heat Advisory is currently in effect for McKinney, Texas, signaling dangerous heat levels that require caution. As of this Friday morning, the air temperature stands at 88F, but the combination of heat and humidity pushes the feels-like temperature to a sweltering 94F. The relative humidity is at 59%, with a dew point of 72F indicating significant moisture in the air.

Winds are blowing from the southwest at 13 mph, with gusts reaching up to 19 mph, while the sky remains clear.

Forecast for Today and Tomorrow

The National Weather Service forecasts that today will be sunny with a high near 103F. The heat index values are expected to reach as high as 112 during the day. Southwest winds will average around 10 mph, and the chance of precipitation is just 1%.

Overnight tonight, skies will become partly cloudy with a low around 81F. Temperatures may rise slightly to around 83F overnight, keeping heat index values as high as 111. West southwest winds will lighten to 5 to 10 mph.

Tomorrow brings a slight relief from the peak intensity but remains warm. The forecast calls for mostly sunny skies with a high near 97F. Heat index values will top out at 98.

North winds will pick up, ranging from 5 to 15 mph, with gusts as high as 25 mph. The chance of precipitation is minimal at 5%. Tomorrow night will be mostly clear with a low around 74F and north northeast winds between 5 to 15 mph.

Safety Reminders

Given the active Heat Advisory and extreme heat index values, it is critical to stay hydrated and limit midday exertion. Seek air-conditioned environments during the hottest parts of the day. Check on neighbors and elderly relatives who may be vulnerable to heat-related illnesses. Ensure pets have access to cool water and shade. Avoid prolonged exposure to direct sunlight to prevent heat exhaustion or heat stroke.

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Sources

https://radar.weather.gov

https://api.weather.gov

https://open-meteo.com