McKinney Heat Persists: Highs Near 99F With Heat Index Up to 104F - Jul 10, 12 PM

*As of Jul 10, 12 PM local time.*

Current Conditions and Heat Index

It is currently Friday this afternoon in McKinney, TX, where the air temperature stands at 91F. The heat index, or how hot it feels, is currently 96F. Relative humidity is at 46% with a dew point of 68F. Winds are blowing from the south southwest at 14 mph, with gusts reaching 18 mph. The sky remains clear.

Forecast for Today and Tomorrow

Today, McKinney will see sunny skies with a high near 99F. The heat index is expected to reach as high as 103F. South southwest winds will continue at 10 to 15 mph. There is a 0% chance of precipitation.

Tonight, conditions will shift to mostly clear skies. Temperatures will drop to a low near 79F, though they may rise slightly to around 81F overnight. The heat index will remain elevated, reaching up to 102F. South winds will persist at 10 to 15 mph.

Tomorrow, the sun will return with a high near 98F. The heat index is forecast to climb to 104F. Winds will ease to the south at 5 to 10 mph. There is no rain expected, with a 0% chance of precipitation.

Safety and Alerts

There are no active National Weather Service or NOAA weather alerts in effect for McKinney at this time. However, the persistent heat requires caution. Residents should stay hydrated and limit midday exertion to avoid heat-related illness.

Check on neighbors and vulnerable individuals who may be affected by the high temperatures. While the heat index values are significant, the clear skies and lack of precipitation mean the primary concern is thermal stress rather than storm damage. Please monitor local conditions and adjust outdoor activities accordingly as the heat index values approach 104F tomorrow.

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Sources

https://radar.weather.gov

https://api.weather.gov

https://open-meteo.com