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5-day forecast / McKinney, TX

TuesdaySunny102° / 80°
WednesdaySunny101° / 81° 1%
ThursdayMostly Sunny101° / 81° 2%
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SaturdaySunny100° / 76° 7%

Humidity Peaks in McKinney as Temperatures Climb to 90 - Jul 15, 8 AM

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

McKinney residents face high humidity with a dew point of 72F today. Temperatures will reach near 90F with a slight chance of afternoon storms.

Cody Esparza

July 15, 20262 min read

National Weather Service radar for North Texas (KFWS)
National Weather Service radar for North Texas (KFWS)

*As of Jul 15, 8 AM local time.*

Current Conditions and Humidity

McKinney, TX is experiencing notably muggy air this morning. The current air temperature sits at 73F, but the heat index feels like 75F due to the heavy moisture in the atmosphere. Relative humidity is at 94%, with a dew point of 72F indicating saturated air. Winds are light at 3 mph, though gusts have reached 14 mph. The sky remains clear at this moment.

Today and Tonight Forecast

Temperatures will rise significantly throughout the day, with a high near 90F expected. The sky will be mostly sunny initially, but conditions may shift later in the day. There is a slight chance of showers and thunderstorms developing after 1pm.

The chance of precipitation is listed at 17% for the day, though the official forecast notes a 20% chance. Winds will shift to the southwest, blowing between 0 to 10 mph.

As evening approaches, the sky will become partly cloudy. A slight chance of showers and thunderstorms remains possible before 10pm. Temperatures will drop to a low near 73F, though they may rise to around 75F overnight. Winds will turn south, blowing at 5 to 10 mph. The chance of precipitation for tonight is also 20%.

Tomorrow Outlook

Conditions will remain warm and humid tomorrow. The high will again reach near 90F, with temperatures falling to around 88F in the afternoon. The low will settle near 75F, rising to around 77F overnight.

Precipitation chances increase slightly tomorrow. There is a slight chance of rain showers between 7am and 1pm, followed by a slight chance of showers and thunderstorms between 1pm and 4pm. A chance of showers and thunderstorms may persist later.

The overall chance of precipitation is 30%, with new rainfall amounts between a tenth and quarter of an inch possible. Winds will be from the south southeast at 5 to 10 mph.

Safety Reminder

With high humidity and temperatures near 90F, stay hydrated and limit midday exertion. Check on neighbors who may be vulnerable to heat stress. No active weather alerts are currently in effect.

National Weather Service radar for North Texas (KFWS)

Sources

https://radar.weather.gov

https://api.weather.gov

https://open-meteo.com

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Cody Esparza

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

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