McKinney Heat Index Hits 103F as Temperatures Climb Near 100F - Jul 9, 4 PM

*As of Jul 9, 4 PM local time.*

Dangerous Heat Conditions

McKinney is currently under the influence of dangerous heat, with the air temperature at 99F and the heat index reaching 103F. The current relative humidity stands at 35%, with a dew point of 66F. Winds are blowing from the south at 14 mph, with gusts reaching up to 20 mph, while the sky remains clear.

Forecast Overview

Today will be sunny with a high near 100F. The National Weather Service indicates heat index values as high as 104. South winds will persist at 10 to 15 mph.

There is a 0% chance of precipitation. Temperatures will drop to a low near 81F tonight. Conditions will remain clear overnight, with temperatures rising to around 83F.

Heat index values will stay as high as 104. South winds will continue at 10 to 15 mph.

Tomorrow will also be sunny, with a high near 100F. Heat index values are expected to reach as high as 103. South southwest winds will blow at 10 to 15 mph.

There is a 0% chance of precipitation. Temperatures will fall to a low near 81F tomorrow night. Conditions will be clear, with heat index values as high as 102.

South winds will remain at 10 to 15 mph.

Safety Reminders

The combination of high temperatures and humidity creates hazardous conditions for outdoor activities. It is critical to stay hydrated by drinking plenty of water throughout the day. Limit midday exertion and seek air-conditioned environments when possible.

Check on neighbors, especially the elderly and those without reliable cooling, to ensure their safety during this period of intense heat. Avoid prolonged exposure to the sun to prevent heat-related illnesses.

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Sources

National Weather Service radar

National Weather Service forecast data

Open-Meteo weather data