*As of Aug 23, 2 PM local time.*
Dangerous Heat Conditions
McKinney is currently under an Extreme Heat Warning issued by the National Weather Service. This severe alert remains in effect until tomorrow evening. The heat is already intense this afternoon, with the air temperature sitting at 102 degrees Fahrenheit.
The combination of high heat and humidity makes it feel like 105 degrees. The sky is clear, and winds are blowing from the south at 10 miles per hour, with gusts reaching 16 miles per hour. Relative humidity is currently at 28 percent, and the dew point is 63 degrees.
Forecast Outlook
The hot conditions will persist through the rest of the day. Today’s high is expected to reach near 106 degrees, with heat index values potentially climbing to 108 degrees. The chance of precipitation is minimal at 2 percent.
Tonight, skies will remain mostly clear. Temperatures will drop to a low near 82 degrees, though they may rise to around 85 degrees overnight. Heat index values could reach 105 degrees tonight.
Winds will shift to 5 to 10 miles per hour from the south.
Tomorrow will bring similar dangerous conditions. The high is expected to be near 107 degrees, with heat index values again reaching 108 degrees. The sky will be mostly sunny, and the chance of rain is only 1 percent.
