McKinney Heat and Air Quality Alert: Highs Near 99F - Sep 18, 2 PM

*As of Sep 18, 2 PM local time.*

Intense Heat and Air Quality Concerns

McKinney is currently experiencing significant heat, with the air temperature sitting at 93F and a feels-like value of 95F. The sky is mostly clear, and relative humidity stands at 39% with a dew point of 64F. Winds are blowing from the south southeast at 10 mph, with gusts reaching 11 mph.

An active Air Quality Alert has been issued by the National Weather Service for the Fort Worth area. While the specific severity and urgency details are not fully specified in the current data, residents should remain aware of potential respiratory impacts associated with poor air quality during this heat wave.

Today and Tonight Outlook

The day will remain sunny with a high near 99F. Heat index values are expected to reach as high as 101F, making the perceived temperature significantly higher than the actual air temperature. There is a 0% chance of precipitation.

Tonight, conditions will stay clear with lows around 75F, though temperatures may rise to around 77F overnight. Heat index values could reach 98F, and winds will shift to 5-10 mph from the south southeast.

Tomorrow's Forecast

Tomorrow will mirror today’s conditions with sunny skies and a high near 99F. Temperatures may dip to around 97F in the afternoon, but heat index values are projected to hit 102F. Winds will come from the south southwest at 5-10 mph.

The chance of rain remains at 0%. Tomorrow night will be mostly clear with a low around 76F and heat index values up to 99F. Given the sustained high temperatures and heat index values exceeding 100F, it is crucial to stay hydrated, limit outdoor exertion during peak heat hours, and check on vulnerable neighbors.

Monitor local air quality updates as well.

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Sources

National Weather Service radar

National Weather Service forecast data

Open-Meteo weather data