McKinney Heat Warning and Air Quality Alert in Effect - Jul 21, 8 PM

*As of Jul 21, 8 PM local time.*

Dangerous Heat and Air Quality Concerns

McKinney, TX is currently under the influence of severe weather alerts. An Extreme Heat Warning is in effect, accompanied by an Air Quality Alert. These alerts highlight the immediate risks posed by the current atmospheric conditions. Residents are advised to take these warnings seriously as the region experiences intense heat.

Right now, the air temperature stands at 95F. However, the combination of heat and moisture makes it feel significantly hotter, with a feels-like temperature of 107F. The relative humidity is at 53%, and the dew point is 75F, indicating oppressively humid air that hinders the body's ability to cool itself.

Winds are light, blowing at 5 mph with gusts reaching 10 mph, under a clear sky.

Forecast for Today and Tomorrow

Today, the high will reach near 102F, with a low near 82F. The sky will remain mostly clear, and there is a 0% chance of precipitation. Tonight, conditions will stay mostly clear.

Temperatures will drop to a low around 82F, though they may rise to around 84F overnight. Heat index values are expected to climb as high as 112. Winds will be from the east southeast at 0 to 5 mph.

Tomorrow, the sun will shine with a high near 102F. The heat index will peak at 113. Winds will shift to the north northeast at 5 to 10 mph.

There is a slight 2% chance of precipitation. Tomorrow night will be clear, with a low around 78F and temperatures rising to around 80F overnight. Heat index values will remain high at 109, with east northeast winds at 5 to 10 mph.

Safety Reminders

Given the Extreme Heat Warning, it is critical to stay hydrated and limit midday exertion. The high heat index values pose a serious risk of heat-related illness. Additionally, due to the Air Quality Alert, individuals with respiratory sensitivities should monitor their health and consider limiting prolonged outdoor activity. Check on neighbors and vulnerable community members to ensure their safety during this dangerous heat event.

View larger

Sources

National Weather Service radar

National Weather Service forecast data

Open-Meteo weather data