*As of Aug 21, 2 PM local time.*
Severe Heat Warning in Effect
McKinney residents are currently under an Extreme Heat Warning issued by the National Weather Service. This severe alert remains active until 8:00 PM CDT on August 22. Additionally, an Air Quality Alert has been issued, prompting caution for those sensitive to air conditions. The combination of intense heat and potential air quality issues requires careful planning for outdoor activities.
Current Conditions and Today's Outlook
It is currently Friday afternoon, with the air temperature sitting at 93 degrees Fahrenheit. The heat index makes it feel like 96 degrees. Relative humidity is at 41 percent, and the dew point is 66 degrees.
Winds are blowing from the south at 8 miles per hour, with gusts reaching the same speed. The sky is clear. Today’s high is expected to reach near 105 degrees, with a low near 81 degrees.
There is a 13 percent chance of precipitation, with a slight chance of showers and thunderstorms before 4 PM. Heat index values could reach as high as 109 degrees. Tonight will be partly cloudy with a low around 81 degrees, though temperatures may rise to around 83 degrees overnight.
Heat index values could reach 107 degrees.


