As of Jun 29, 8 AM local time.
Current Conditions and Notable Humidity
McKinney, TX, is experiencing a notably humid start to the day. Current observations show an air temperature of 81F, but the heat index makes it feel like 85F. The relative humidity stands at 79%, with a dew point of 73F, indicating significant moisture in the air.
Winds are blowing from the south at 17 mph, with gusts reaching 32 mph. The sky remains mostly cloudy at this hour.
Today and Tonight Forecast
Conditions will clear up significantly as the day progresses. Today is forecast to be sunny with a high near 97F. The heat index is expected to reach as high as 102. South winds will continue, ranging from 15 to 20 mph, with gusts as high as 30 mph. There is a 0% chance of precipitation.
Tonight, the sky will clear, leading to a low around 77F. However, temperatures will rise to around 79F overnight. The heat index will remain elevated, reaching as high as 100. South winds will persist at 10 to 20 mph, with gusts up to 30 mph. Residents should be aware that the humidity will linger, making the night feel warmer than the actual air temperature suggests.
Tomorrow Outlook and Safety
Tomorrow will also be sunny, with a high near 96F. The heat index is projected to hit 100. South winds will ease slightly to 10 to 15 mph, with gusts as high as 25 mph.






