*As of Jul 28, 8 AM local time.*
Current Conditions and Alert Status
A Heat Advisory is currently in effect for McKinney, Texas, signaling dangerous heat levels that require caution. As of this Tuesday morning, the air temperature stands at 81F, but the combination of heat and moisture makes it feel like 85F. The relative humidity is at 74%, with a dew point of 72F, indicating quite humid conditions that will persist through the day.
Winds are currently blowing from the south southwest at 6 mph, with gusts reaching up to 19 mph, while the sky remains clear.
The National Weather Service has issued this advisory with moderate severity and expected urgency. It is important to note that this alert is active now and extends through the evening hours. Residents should monitor local updates as conditions evolve. The advisory highlights the potential for heat-related illnesses, particularly for those spending extended time outdoors or without adequate cooling.
Forecast for Today and Tomorrow
Today, McKinney will experience sunny skies with a high near 102F. The heat index values are expected to reach as high as 109F, making it feel significantly hotter than the actual air temperature. South southwest winds will continue at 5 to 10 mph. There is a 0% chance of precipitation, so the heat will be unrelenting throughout the day.
Tonight, conditions will remain mostly clear with a low around 81F. Temperatures may rise to around 83F overnight, keeping the heat index as high as 107F. South winds will persist at 5 to 10 mph.
Tomorrow, the sun will return with a high near 101F and heat index values climbing to 108F. South southwest winds will again be 5 to 10 mph. There is no rain expected, with a 0% chance of precipitation.






