McKinney weather: Very hot today with a high near 102F - Aug 5, 4 AM

*As of Aug 5, 4 AM local time.*

Very hot stretch builds

McKinney’s main weather story is the heat. Current conditions are clear, with an air temperature of 77F and a feels-like temperature of 78F. Relative humidity is 74%, with a dew point of 68F. Wind is 5 mph, with gusts to 14 mph.

Today, tonight and tomorrow

Today is forecast to be sunny and very hot, with a high near 102F and a low near 79F. The chance of precipitation is 3%. The National Weather Service forecast also indicates heat index values up to 105, with a south wind of 5 to 10 mph.

Tonight should stay mostly clear. The official forecast shows a low around 80F, heat index values up to 106, and a south southeast wind of 5 to 10 mph.

Tomorrow remains sunny, with a high near 100F and a low near 78F. The chance of precipitation is again 3%. Heat index values may reach 105, with a south wind of 5 to 10 mph.

Alerts and heat reminders

No active NWS/NOAA weather alerts are listed for McKinney.

Even without an active alert, this level of heat can wear people down quickly. Drink water, take breaks from strenuous outdoor work, and use shade or air-conditioned spaces when possible. Check on people and pets who may have a harder time staying cool.

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Sources

https://radar.weather.gov

https://api.weather.gov

https://open-meteo.com