*As of Jul 27, 8 PM local time.*
Current Conditions and Alert Overview
A Heat Advisory is currently in effect for McKinney, Texas, signaling dangerous heat levels that require caution. The National Weather Service has issued this moderate-severity alert, which remains active until the evening of July 28. Residents should be aware that the combination of high temperatures and humidity will create hazardous heat index values over the next day.
As of this evening, the air temperature stands at 91F, with a feels-like temperature of 94F. The relative humidity is at 44%, and the dew point is recorded at 66F. Winds are blowing from the south at 9 mph, with gusts reaching up to 16 mph. The sky remains clear, offering no relief from the sun's intensity.
Forecast for Today, Tonight, and Tomorrow
Today, McKinney is expected to see a high near 98F, with a low near 80F. The sky will remain mostly clear, and there is a 0% chance of precipitation. As tonight approaches, conditions will stay mostly clear with a low around 80F.
Temperatures may rise slightly to around 82F during the overnight hours. The heat index is expected to reach as high as 103F. South winds will continue at 5 to 10 mph.
Tomorrow, the heat will intensify significantly. The sky will be sunny, with a high near 102F. The heat index values are forecast to climb as high as 110F, making it feel much hotter than the actual air temperature.
South southwest winds will persist at 5 to 10 mph. Following tomorrow, the sky will return to mostly clear conditions with a low around 80F. Overnight temperatures may rise to around 82F, with heat index values up to 108F.
