McKinney Heat Wave Continues With Highs Near 100F - Aug 10, 9 AM

*As of Aug 10, 9 AM local time.*

Current Conditions and Immediate Outlook

McKinney is currently experiencing very hot conditions this morning, with the air temperature at 82F but a feels-like temperature of 88F due to significant moisture in the air. The relative humidity stands at 74%, with a dew point of 73F, creating a muggy atmosphere that makes the heat feel more oppressive than the actual thermometer reading suggests.

Winds are blowing from the south at 10 mph, with gusts reaching up to 17 mph, while the sky remains clear.

Today will bring intense heat, with highs near 100F. The National Weather Service indicates that heat index values could climb as high as 105F during the peak afternoon hours. South winds of 5 to 10 mph will persist throughout the day.

Temperatures are expected to drop to a low near 79F tonight, though they may rise slightly to around 81F overnight. Heat indices will remain elevated at around 102F during the evening. Winds will shift to around 10 mph from the south, with gusts potentially reaching 20 mph.

Tomorrow's Forecast and Safety Reminders

Tomorrow, McKinney will see continued sunny skies with a high near 99F. The heat index is forecast to reach as high as 105F again, maintaining the hazardous heat conditions. South winds will increase slightly, ranging from 5 to 15 mph.

Overnight lows will settle around 80F, with temperatures rising to approximately 82F later in the night. Heat indices will hover near 103F. Winds will remain steady at 10 to 15 mph from the south.

There are no active National Weather Service or NOAA weather alerts for McKinney at this time. However, the persistent extreme heat requires caution. Residents should stay hydrated and limit outdoor exertion during the hottest parts of the day.

Check on neighbors and vulnerable individuals who may be affected by the high temperatures. Ensure that pets have access to cool water and shade. While no severe weather is expected, the combination of high heat and humidity poses health risks that should be taken seriously.

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Sources

National Weather Service radar

National Weather Service forecast data

Open-Meteo weather data