10-Day Weather Forecast - Summit, SD

Mostly cloudy with a slight chance of thunderstorms in the morning then partly sunny in the afternoon. Humid with highs in the lower 80s. North winds 5 to 10 mph. Chance of rain 20 percent.

Mostly clear in the evening then becoming partly cloudy. Humid with lows in the lower 60s. North winds 5 to 10 mph becoming west after midnight.

Mostly sunny. Highs in the mid 80s. North winds around 5 mph becoming northeast in the afternoon.

Mostly clear. Humid with lows in the mid 60s. Southeast winds 5 to 10 mph becoming south with gusts up to 20 mph after midnight.

Mostly sunny. A slight chance of showers in the afternoon. Highs in the upper 80s. Chance of rain 20 percent.

Partly cloudy in the evening then becoming mostly cloudy. A 50 percent chance of thunderstorms. Lows in the mid 60s.

Partly sunny. A slight chance of thunderstorms in the afternoon. Highs in the mid 80s. Chance of rain 20 percent.

Partly cloudy in the evening then becoming mostly cloudy. A chance of thunderstorms. Showers likely after midnight. Lows in the mid 60s. Chance of rain 60 percent.

Mostly cloudy with a chance of showers with a slight chance of thunderstorms in the morning then partly sunny with a chance of thunderstorms in the afternoon. Highs in the lower 80s. Chance of rain 50 percent.

Partly cloudy with a chance of thunderstorms in the evening then mostly cloudy with a chance of showers with a slight chance of thunderstorms after midnight. Lows in the lower 60s. Chance of rain 50 percent.

Partly sunny. A slight chance of thunderstorms in the afternoon. Highs in the mid 80s. Chance of rain 20 percent.

Mostly clear in the evening then becoming partly cloudy. A 20 percent chance of thunderstorms. Lows in the lower 60s.

Partly sunny. A slight chance of showers in the morning then a slight chance of thunderstorms in the afternoon. Highs in the mid 80s. Chance of rain 20 percent.

Clear. Low temperature around 67F. Dew point will be around 64F with an average humidity of 77%. Winds will be 2 mph from the SW.

Sunny. High temperature around 82F. Dew point will be around 64F with an average humidity of 67%. Winds will be 1 mph from the SW.

Clear. Low temperature around 66F. Dew point will be around 63F with an average humidity of 72%. Winds will be 3 mph from the NE.

Sunny. High temperature around 80F. Dew point will be around 62F with an average humidity of 65%. Winds will be 2 mph from the E.

Clear. Low temperature around 67F. Dew point will be around 62F with an average humidity of 70%. Winds will be 4 mph from the S.