*As of Aug 18, 5 PM local time.*
Severe Heat Alert in Effect
An Extreme Heat Warning is currently active for the McKinney area, issued by the National Weather Service in Fort Worth. This severe alert remains in effect until the evening of tomorrow. Residents should be aware that dangerous heat conditions are present right now.
The air temperature is currently 102F, but the heat index makes it feel like 105F. Relative humidity is low at 28%, and the dew point sits at 63F. Winds are blowing from the south at 13 mph, with gusts reaching the same speed.
The sky is clear, offering no relief from the intense solar radiation.
Today and Tonight Outlook
Today’s forecast indicates sunny conditions with a high near 105F. The heat index values are expected to reach as high as 108F. South winds will average around 10 mph.
The chance of precipitation is minimal at 1%. As night falls, skies will remain clear. Temperatures will drop to a low near 81F, though they may rise slightly to around 84F overnight.
The heat index will remain high, reaching up to 106F. South winds will slow to between 5 and 10 mph. This pattern of intense heat and dry air continues into tomorrow.


