McKinney Heat Persists: Feels Like 99F Tonight With Humid Skies - Jul 2, 8 PM

As of Jul 2, 8 PM local time.

Current Conditions and Heat Index

McKinney is experiencing a notably hot evening with clear skies overhead. The air temperature currently stands at 91F, but the combination of heat and moisture makes it feel significantly warmer. The heat index, or "feels like" temperature, is at 99F.

Relative humidity is sitting at 53%, with a dew point of 72F, indicating substantial moisture in the air. Winds are light, blowing from the southeast at 6 mph with gusts reaching up to 13 mph.

Forecast for Today and Tonight

Today remains hot and mostly clear, with a high near 95F. Temperatures will drop tonight to a low near 77F, though they may rise slightly to around 79F during the overnight hours. The heat index will remain elevated, peaking at 99F.

Skies will stay mostly clear with a 20% chance of precipitation. Winds will continue from the southeast at 5 to 10 mph. Despite the clear skies, the humidity will keep the air feeling heavy and warm.

Tomorrow Outlook and Safety Tips

Tomorrow will be similarly warm, with a high near 95F and a low near 78F. The sky will be mostly sunny initially, but there is a slight chance of showers and thunderstorms developing after 4pm. The heat index is expected to reach as high as 101F.

Winds will shift to the south at 5 to 10 mph. There are no active National Weather Service alerts, watches, or advisories in effect for McKinney at this time.

Given the high temperatures and humidity, it is important to stay hydrated and limit time spent outdoors during the hottest parts of the day. Wear lightweight, light-colored clothing and seek air-conditioned environments when possible. Check on elderly neighbors or those without reliable cooling to ensure their safety during this heat event.

View larger

Sources

National Weather Service radar

National Weather Service forecast data

Open-Meteo weather data