McKinney Heat Persists: Highs Near 100F Expected Through Tomorrow - Jul 9, 8 PM

*As of Jul 9, 8 PM local time.*

Current Conditions and Heat Index

McKinney is experiencing significant heat this evening, with the air temperature at 95F. Due to the combination of heat and humidity, the feels-like temperature is currently 97F. The relative humidity stands at 37%, with a dew point of 64F.

Winds are blowing from the south at 13 mph, with gusts reaching up to 23 mph. The sky remains clear, offering no relief from the sun's intensity.

Forecast for Today and Tomorrow

Today, the high will reach near 100F, with a low near 81F. The chance of precipitation is minimal at 1%, and skies will stay clear. As tonight approaches, conditions will remain clear with a low around 81F.

Temperatures may rise slightly to around 83F overnight. The heat index is expected to hit values as high as 98F. South winds will decrease to around 10 mph, with gusts as high as 20 mph.

Tomorrow, the heat will continue with sunny skies and a high near 100F. The heat index is forecast to reach as high as 103F. Winds will shift to the south southwest at 10 to 15 mph.

Tomorrow night will be clear with a low around 81F. The heat index may remain elevated, with values as high as 102F. South winds will persist at 10 to 15 mph.

Safety Reminders

With temperatures near 100F and heat indices exceeding 100F, it is crucial to stay hydrated and limit outdoor exertion during the hottest parts of the day. Wear lightweight, light-colored clothing and seek air-conditioned environments when possible. Check on elderly neighbors and those without reliable cooling to ensure their safety during this prolonged heat event.

Avoid strenuous activities, especially between midday and early evening, to prevent heat-related illnesses.

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Sources

National Weather Service radar

National Weather Service forecast data

Open-Meteo weather data