10-Day Weather Forecast - Keystone, IN

Mostly sunny. Hot with highs around 90. Southwest winds 5 to 10 mph. Heat index values in the upper 90s in the afternoon.

Mostly clear. Showers likely with a chance of thunderstorms after midnight. Humid with lows around 70. Southwest winds around 5 mph, becoming east around 5 mph after midnight. Chance of rain 60 percent.

Mostly sunny in the morning, then becoming partly cloudy. Showers likely with a slight chance of thunderstorms. Humid with highs in the mid 80s. Northeast winds around 5 mph. Chance of rain 60 percent.

Partly cloudy with a chance of showers and thunderstorms in the evening, then mostly clear after midnight. Lows around 60. Northeast winds around 5 mph. Chance of rain 40 percent.

Mostly sunny. Highs around 80.

Mostly clear. Lows in the upper 50s.

Mostly sunny. Highs in the lower 80s.

Mostly clear in the evening, then becoming partly cloudy. Lows around 60.

Partly cloudy. Highs in the mid 80s.

Partly cloudy in the evening, then becoming mostly clear. Lows in the upper 60s.

Mostly sunny in the morning, then becoming partly cloudy. Highs in the upper 80s. Heat index values in the mid 90s in the afternoon.

Partly cloudy. A slight chance of showers in the evening, then a chance of showers after midnight. Lows in the upper 60s. Chance of rain 30 percent.

Partly cloudy. A chance of showers, mainly in the morning. Highs in the mid 80s. Chance of rain 30 percent.

Mostly clear with a 40% chance for rain and thunderstorms. Low temperature around 68F. Dew point will be around 65F with an average humidity of 76%. Winds will be 2 mph from the W.

Mostly sunny with a slight chance of rain. Chance of precipitation 25%. High temperature around 80F. Dew point will be around 64F with an average humidity of 73%. Winds will be 3 mph from the W.

Mostly clear. Low temperature around 64F. Dew point will be around 64F with an average humidity of 80%. Winds will be 1 mph from the SE.

Sunny. High temperature around 81F. Dew point will be around 64F with an average humidity of 73%. Winds will be 3 mph from the SW.

Clear. Low temperature around 65F. Dew point will be around 62F with an average humidity of 76%. Winds will be 2 mph from the S.