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Current Weather Conditions for Mckinney, TX

Sunny, with a high near 91. Heat index values as high as 99. South wind 10 to 15 mph.
83°F

Conditions

Wind: 10 mph S
Humidity: 70%
Probability of Precipitation: 1%

Hourly Forcast (next 12 hours)

3 PM 4 PM 5 PM 6 PM 7 PM 8 PM 9 PM 10 PM 11 PM 12 AM 1 AM 2 AM 3 AM
83° 85° 87° 89° 90° 91° 91° 91° 90° 89° 88° 84° 83°

Upcoming Week

Day Forecast High Low
Today
Sunny
Sunny, with a high near 91. Heat index values as high as 99. South wind 10 to 15 mph.
91°F 80°F
Tonight
Mostly Clear
Mostly clear, with a low around 77. South wind 10 to 15 mph.
91°F 80°F
Wednesday
Mostly Sunny
Mostly sunny, with a high near 93. Heat index values as high as 101. South wind 10 to 15 mph, with gusts as high as 25 mph.
91°F 80°F
Wednesday Night
Mostly Clear
Mostly clear. Low around 78, with temperatures rising to around 80 overnight. Heat index values as high as 101. South wind around 15 mph, with gusts as high as 25 mph.
91°F 80°F
Thursday
Mostly Sunny
Mostly sunny, with a high near 94. South wind around 15 mph, with gusts as high as 25 mph.
91°F 80°F
Thursday Night
Partly Cloudy then Slight Chance Showers And Thunderstorms
A slight chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 79. South wind 10 to 15 mph. Chance of precipitation is 20%.
91°F 80°F
Friday
Slight Chance Showers And Thunderstorms
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 91. South wind 5 to 10 mph. Chance of precipitation is 20%.
91°F 80°F
Friday Night
Slight Chance Showers And Thunderstorms
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 78. South southeast wind 5 to 10 mph. Chance of precipitation is 20%.
91°F 80°F
Saturday
Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms
A slight chance of showers and thunderstorms before 7am, then a chance of showers and thunderstorms between 7am and 1pm, then a chance of showers and thunderstorms. Mostly sunny, with a high near 94. South wind 5 to 10 mph. Chance of precipitation is 30%.
91°F 80°F
Saturday Night
Chance Showers And Thunderstorms
A chance of showers and thunderstorms. Partly cloudy, with a low around 78. Chance of precipitation is 40%.
91°F 80°F
Sunday
Chance Showers And Thunderstorms
A chance of showers and thunderstorms before 7am, then a chance of showers and thunderstorms between 7am and 1pm, then a chance of showers and thunderstorms. Mostly sunny, with a high near 92. Chance of precipitation is 50%.
91°F 80°F
Sunday Night
Chance Showers And Thunderstorms then Showers And Thunderstorms Likely
A chance of showers and thunderstorms before 7pm, then showers and thunderstorms likely. Partly cloudy, with a low around 74. Chance of precipitation is 60%.
91°F 80°F
Monday
Showers And Thunderstorms Likely then Chance Showers And Thunderstorms
Showers and thunderstorms likely before 7am, then a chance of showers and thunderstorms. Partly sunny, with a high near 88. Chance of precipitation is 60%.
91°F 80°F
Monday Night
Chance Showers And Thunderstorms
A chance of showers and thunderstorms before 7pm, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 71. Chance of precipitation is 40%.
91°F 80°F
Data provided by weather.gov