10-Day Weather Forecast - McKinney, TX

Mostly sunny. Humid with highs in the lower 90s. South winds 5 to 10 mph increasing to 10 to 15 mph in the afternoon.

Mostly clear in the evening then partly cloudy with a chance of showers with a slight chance of thunderstorms after midnight. Humid with lows in the mid 70s. South winds 5 to 10 mph. Chance of rain 30 percent.

Partly sunny. A chance of showers with a slight chance of thunderstorms in the morning then showers likely with a chance of thunderstorms in the afternoon. Humid with highs in the upper 80s. Southwest winds 5 to 10 mph becoming north in the afternoon. Chance of rain 70 percent.

A chance of thunderstorms. Showers. Lows in the upper 60s. Northeast winds 5 to 10 mph. Chance of rain 80 percent.

Mostly cloudy with a 50 percent chance of showers and thunderstorms in the morning then partly sunny in the afternoon. Highs in the upper 70s.

Mostly cloudy. Lows in the mid 60s.

Mostly sunny. Highs in the mid 80s.

Mostly clear. Lows in the lower 70s.

Sunny. Highs in the lower 90s. Heat index values up to 105.

Clear. A slight chance of showers and thunderstorms after midnight. Lows in the upper 70s. Chance of rain 20 percent.

Mostly sunny. Highs in the mid 90s. Heat index values up to 110 in the afternoon.

Mostly clear in the evening then partly cloudy with a chance of showers with a slight chance of thunderstorms after midnight. Lows in the upper 70s. Chance of rain 30 percent.

Mostly sunny with a chance of showers. A slight chance of thunderstorms in the morning then a chance of thunderstorms in the afternoon. Highs in the mid 90s. Chance of rain 30 percent. Heat index values up to 110 in the afternoon.

Clear with a 50% chance for rain and thunderstorms. Low temperature around 78F. Dew point will be around 75F with an average humidity of 80%. Winds will be 12 mph from the S.

Mostly cloudy with a 55% chance for rain and thunderstorms. High temperature around 91F. Dew point will be around 74F with an average humidity of 70%. Winds will be 12 mph from the S.

Clear with a 35% chance for rain and thunderstorms. Low temperature around 78F. Dew point will be around 74F with an average humidity of 73%. Winds will be 13 mph from the S.

Partly cloudy with a 45% chance for rain and thunderstorms. High temperature around 92F. Dew point will be around 74F with an average humidity of 68%. Winds will be 11 mph from the S.

Clear with a 25% chance for rain and thunderstorms. Low temperature around 78F. Dew point will be around 73F with an average humidity of 70%. Winds will be 11 mph from the S.