*As of Jul 22, 4 PM local time.*
Dangerous Heat and Air Quality Alerts Active
McKinney, Texas, is currently under an Extreme Heat Warning, a severe alert issued by the National Weather Service. This warning highlights the immediate danger posed by the current weather conditions, where the air temperature stands at 100F but feels like 115F due to high humidity. The oppressive nature of the heat is further emphasized by a dew point of 75F and relative humidity of 45%.
Winds are blowing from the northeast at 13 mph, with gusts reaching 14 mph, under a clear sky.
In addition to the Extreme Heat Warning, a Heat Advisory is also in effect, indicating moderate severity. An Air Quality Alert is concurrently active, adding another layer of concern for residents. These alerts underscore the need for vigilance as the region experiences intense solar heating and stagnant air conditions.
Forecast for Today and Tomorrow
Today, the sun will remain out with a high near 102F. The heat index is expected to climb to 115, making it feel significantly hotter than the actual air temperature. Northeast winds will average around 10 mph, with gusts potentially reaching 20 mph. The chance of precipitation is minimal at 1%.
Tonight, skies will become mostly clear, allowing temperatures to drop to a low near 77F. However, the heat will linger, with temperatures rising to around 79F overnight and heat index values as high as 112. Winds will shift to the east-northeast, blowing at 5 to 10 mph.
Tomorrow, conditions will remain sunny with a high near 98F. While slightly cooler than today, the heat index will still reach 105. East-northeast winds will range from 5 to 15 mph. The chance of rain remains low at 1%. Temperatures will fall to a low near 78F tomorrow night, with heat index values up to 106.
