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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%

Heat Advisory in Effect for McKinney as Temperatures Climb to 100F - Jul 25, 8 PM

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

A Heat Advisory is active for McKinney, TX, with current feels-like temperatures at 96F. Highs near 98F today will rise to 100F tomorrow, with heat indices reaching 109F.

Cody Esparza· AI-assisted, edited by Jake Team

July 26, 20262 min read

National Weather Service radar for North Texas (KFWS)

*As of Jul 25, 8 PM local time.*

Current Conditions and Alert Status

A Heat Advisory is currently in effect for McKinney, Texas, signaling moderate severity and expected urgency. Residents are advised to take this warning seriously as the region experiences significant heat. At this moment, the air temperature stands at 91F, but the combination of heat and humidity makes it feel like 96F.

The relative humidity is at 46%, with a dew point of 68F. Winds are blowing from the south at 8 mph, with gusts reaching up to 17 mph, while the sky remains clear.

The National Weather Service has issued this advisory to highlight the dangerous heat levels expected over the next day. This is not a watch or a warning of severe storms, but a specific alert for high heat values that can impact health and safety. The official alert was issued on July 25 and remains active until July 26.

Readers should monitor local updates as conditions evolve.

Forecast for Today, Tonight, and Tomorrow

Today, McKinney will see mostly clear skies with a high near 98F and a low near 78F. There is no chance of precipitation, with the probability listed at 0%. As evening approaches, temperatures will drop but remain warm.

Tonight, the sky will stay mostly clear with a low around 78F. However, temperatures may rise to around 80F overnight. The heat index is expected to reach as high as 104F.

South winds will average around 10 mph.

Tomorrow, the heat will intensify further. Expect sunny skies with a high near 100F. The heat index could climb to 109F, making it feel significantly hotter than the actual air temperature.

Winds will shift to the south southwest at 5 to 10 mph. Tomorrow night, conditions will clear up again with a low around 80F. The heat index will remain elevated, reaching up to 107F, with south winds continuing at 5 to 10 mph.

Safety Reminders

Given the active Heat Advisory and the high heat indices forecasted for the next 24 hours, it is crucial to prioritize safety. Hydrate frequently and limit midday exertion to avoid heat-related illnesses. Check on neighbors, especially the elderly and those without air conditioning. Wear lightweight, light-colored clothing and seek air-conditioned environments during the peak heat hours. Do not leave people or pets in parked vehicles.

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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