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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 Evening in McKinney: Highs Near 90, Slight Storm Chance Tomorrow - Jul 14, 8 PM

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

McKinney residents face a humid Tuesday evening with temperatures near 90. A slight chance of showers and thunderstorms is possible tomorrow afternoon.

Cody Esparza· AI-assisted, edited by Jake Team

July 15, 20262 min read

National Weather Service radar for North Texas (KFWS)

*As of Jul 14, 8 PM local time.*

Current Conditions and Humidity

It is currently Tuesday evening in McKinney, TX, and the air feels quite heavy with moisture. The air temperature is 84F, but the heat index makes it feel like 90F. This discrepancy is driven by a dew point of 72F and a relative humidity of 66%.

The sky remains clear, but a south wind is blowing at 12 mph with gusts reaching 17 mph, providing some relief from the stagnant air.

Forecast for Tonight and Tomorrow

Tonight, conditions will remain partly cloudy with a low near 71F. Temperatures are expected to rise slightly to around 73F during the overnight hours. Winds will shift to a south direction and decrease significantly, ranging from 0 to 5 mph.

Tomorrow, the heat will persist with a high near 91F. The National Weather Service indicates that heat index values could climb as high as 97F. The sky will be partly sunny, but there is a slight chance of showers and thunderstorms developing after 1pm.

The chance of precipitation is listed at 24% for the day, though the official forecast notes a 20% chance for that specific window. Winds will remain light, from the south southwest at 0 to 5 mph.

Tomorrow night, the sky will turn partly cloudy with a low around 72F. Temperatures may rise to around 75F overnight. There is a slight chance of showers and thunderstorms before 10pm, with a 20% chance of precipitation. Winds will stay light from the south southwest around 5 mph.

Safety Reminder

With humidity levels high and heat indices approaching 97F tomorrow, it is important to stay hydrated and limit prolonged outdoor exertion during the hottest parts of the day. Keep an eye on the sky in the afternoon as the slight chance for storms develops, and be prepared for potential rapid changes in weather conditions.

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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