*As of Sep 1, 2 PM local time.*
Current Conditions and Heat Risk
McKinney is currently experiencing significant heat stress this afternoon. The air temperature stands at 97F, but the combination of humidity and heat creates a feels-like temperature of 102F. Relative humidity is at 39%, with a dew point of 68F.
The sky is clear, and winds are blowing from the southeast at 8 mph, with gusts reaching 10 mph. An Air Quality Alert is currently active for the region, issued by the National Weather Service. While the severity and urgency details are not specified in the current data, residents should remain aware of potential respiratory impacts, especially for those with sensitive conditions.
Today and Tonight Outlook
The forecast for the remainder of today indicates a high near 99F. There is a slight chance of rain showers after 4pm, with a 10% probability of precipitation. Heat index values are expected to reach as high as 106F, posing a serious risk for heat-related illness.
Tonight, the low will be near 77F, though temperatures may rise to around 79F overnight. The sky will remain mostly clear, with a slight chance of showers before 7pm. Winds will continue from the southeast at 5 to 10 mph.
Heat index values tonight could reach 104F.
