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5-day forecast / McKinney, TX

SundayScattered Showers And Thunderstorms95° / 73° 28%
MondayChance Showers And Thunderstorms95° / 74° 31%
TuesdayMostly Sunny96° / 75° 1%
WednesdayRain Showers Likely91° / 72° 55%
ThursdayShowers And Thunderstorms Likely85° / 69° 73%

McKinney Weather: Heat and Storms Amid Air Quality Alert - Sep 27, 12 PM

McKinney weather, updated every four hours — local forecasts you can trust.

McKinney residents face a hot afternoon with scattered storms and an active Air Quality Alert. Temperatures hover near 95F, with humidity and wind contributing to uncomfortable conditions.

Cody Esparza

September 27, 20262 min read

National Weather Service radar for North Texas (KFWS)

*As of Sep 27, 12 PM local time.*

Current Conditions and Alert Status

An active Air Quality Alert is currently in effect for the McKinney area, issued by the National Weather Service. While the specific severity and urgency details are not yet fully defined in the local feed, residents should remain aware of potential respiratory impacts. Currently, the air temperature stands at 88 degrees Fahrenheit, though it feels like 91 degrees due to the humidity.

The relative humidity is at 52 percent, with a dew point of 68 degrees. Winds are blowing from the south at 11 miles per hour, with gusts reaching 18 miles per hour. The sky remains clear at this moment, offering a brief respite before the afternoon patterns shift.

Today's Forecast and Evening Outlook

As the day progresses, the high temperature is expected to reach near 95 degrees Fahrenheit. The heat index values may climb as high as 97 degrees, making the air feel significantly warmer than the actual temperature. There is a 28 percent chance of precipitation, with scattered showers and thunderstorms possible.

The low temperature for the evening will drop to around 73 degrees. Tonight, the sky will be partly cloudy, and winds will shift to the southeast at around 5 miles per hour. The chance of precipitation remains at 30 percent, with new rainfall amounts likely to be less than a tenth of an inch.

Residents should stay hydrated and limit midday exertion given the high heat index values.

Tomorrow's Outlook

Tomorrow will bring similar conditions, with a high near 95 degrees Fahrenheit and a low around 74 degrees. The chance of precipitation is 31 percent, with a chance of showers and thunderstorms. The sky will be mostly sunny, and the heat index values could reach as high as 98 degrees.

Winds will be from the southeast at 5 to 10 miles per hour. New rainfall amounts are expected to be less than a tenth of an inch. As with today, it is advisable to stay cool and monitor air quality conditions throughout the day.

National Weather Service radar for North Texas (KFWS)

Sources

National Weather Service radar

National Weather Service forecast data

Open-Meteo weather data

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Cody Esparza

Cody Esparza covers McKinney city hall, the council, and county government.

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