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5-day forecast / McKinney, TX

WednesdaySunny83° / 65° 7%
ThursdayPartly Sunny83° / 65° 2%
FridaySlight Chance Rain Showers75° / 60° 23%
SaturdayChance Showers And Thunderstorms77° / 59° 48%
SundayPartly Sunny80° / 63° 8%

Humid Start to Sunday Evening in McKinney with Storms Ahead - Jul 12, 8 PM

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

McKinney residents face high humidity and a chance of showers and thunderstorms today and tomorrow. Current conditions show a dew point of 72F with no active weather alerts.

Cody Esparza· AI-assisted, edited by Jake Team

July 13, 20262 min read

National Weather Service radar for North Texas (KFWS)

*As of Jul 12, 8 PM local time.*

Current Conditions and Humidity

It is currently Sunday evening in McKinney, TX, and the air feels heavy with moisture. The current air temperature sits at 75F, but the heat index makes it feel like 77F. Relative humidity is holding at 89%, contributing to a dew point of 72F, which indicates quite humid conditions.

Skies are currently cloudy, and winds are blowing at 8 mph with gusts reaching up to 23 mph.

Forecast for Today and Tomorrow

Temperatures will remain warm today with a high near 95F and a low near 74F. There is a 51% chance of precipitation, with showers and thunderstorms possible.

Tonight, a chance of showers and thunderstorms is expected before 4am, followed by a continued chance of showers and thunderstorms. The sky will be partly cloudy. Lows will drop to around 74F, though temperatures may rise to around 76F overnight.

Heat index values could reach as high as 100. Winds will shift to the southeast at 0 to 5 mph. There is a 50% chance of precipitation, with new rainfall amounts between a quarter and half of an inch possible.

Tomorrow, conditions will remain partly sunny with a high near 90F. A chance of showers and thunderstorms is likely before 7am, then a continued chance of showers and thunderstorms. Heat index values may reach as high as 99.

Winds will be from the east southeast at 0 to 5 mph. The chance of precipitation is 50%, with new rainfall amounts between a quarter and half of an inch possible.

Safety and Alerts

There are no active National Weather Service or NOAA weather alerts in effect for McKinney at this time. However, the high humidity and potential for storms warrant caution. Residents should stay hydrated and limit midday exertion given the heat index values.

Keep an eye on the sky for developing storms, especially in the early morning hours. Ensure that any outdoor plans account for the possibility of rain and thunderstorms.

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· AI-assisted, edited by Jake Team

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

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