*As of Sep 11, 2 PM local time.*
Dangerous Heat Dominates Afternoon
The primary concern for McKinney residents this afternoon is the intense heat. The air temperature currently sits at 93F, but the combination of humidity and solar radiation makes it feel like 101F. Relative humidity is at 50%, and the dew point is 72F, contributing to the muggy sensation.
The sky is clear, and winds are light at 3 mph with gusts reaching 11 mph. This level of heat index requires caution, as prolonged exposure can lead to heat-related illness.
Today's Outlook and Evening Conditions
A slight chance of showers and thunderstorms exists before 4pm, with a precipitation probability of 15%. After that window, conditions will remain mostly sunny. The high temperature will reach near 97F, with heat index values potentially climbing to 102F.
Winds will shift to the south southwest at around 5 mph. As evening approaches, the sky will become mostly clear. Temperatures will drop to a low near 78F, though they may rise slightly to around 80F overnight.
The heat index could reach 103F during the evening hours, with south southeast winds blowing between 5 and 10 mph.
