As of Jul 3, 4 PM local time.
Current Conditions and Heat Index
McKinney, Texas, is currently under very hot conditions. The air temperature stands at 93°F, but the heat index makes it feel like 99°F. Humidity levels are notable, with a dew point of 70°F and relative humidity at 47%. The sky remains clear, and winds are blowing from the south-southeast at 10 mph, with no significant gusts reported.
Today and Tonight Forecast
Temperatures will remain elevated today, with a high near 94°F. There is a slight chance of showers and thunderstorms developing after 4pm. The chance of precipitation is listed at 16%.
Winds will continue from the south-southeast at 5 to 10 mph. As evening approaches, the heat index will remain high, with values reaching up to 100°F during the day and 99°F tonight. A slight chance of showers and thunderstorms is possible before 7pm.
Overnight, skies will be partly cloudy. Temperatures will drop to a low near 78°F, though they may rise to around 80°F later in the night. The heat index will stay near 99°F during this period.
Tomorrow Outlook
Conditions will intensify tomorrow with sunny skies and a high near 98°F. The heat index is expected to climb to 104°F. Winds will shift slightly to the south-southwest at 5 to 10 mph.






