10-Day Weather Forecast - Summit, SD

Mostly sunny. Hot with highs around 90. South winds 5 to 10 mph.

Mostly clear. Lows in the upper 50s. South winds 5 to 10 mph.

Mostly sunny. Hot with highs in the lower 90s. South winds 10 to 15 mph with gusts up to 25 mph.

Partly cloudy. A slight chance of thunderstorms after midnight. Lows in the upper 50s. Chance of rain 20 percent.

Partly cloudy. Highs in the upper 80s. Lows in the mid 50s.

Partly cloudy. Highs in the upper 80s. Lows in the mid 50s.

Mostly cloudy in the morning then becoming partly sunny. Highs in the mid 80s.

Partly cloudy in the evening then becoming mostly cloudy. Lows in the mid 50s.

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

Partly cloudy. Lows in the lower 50s.

Partly sunny. A slight chance of thunderstorms in the afternoon. Highs in the upper 70s. Chance of rain 20 percent.

Partly cloudy with a slight chance of rain. Chance of precipitation 25%. Low temperature around 53F. Dew point will be around 49F with an average humidity of 59%. Winds will be 10 mph from the SE.

Sunny with a slight chance of rain. Chance of precipitation 25%. High temperature around 71F. Dew point will be around 49F with an average humidity of 57%. Winds will be 8 mph from the SE.

Clear. Low temperature around 54F. Dew point will be around 47F with an average humidity of 60%. Winds will be 6 mph from the SE.

Sunny. High temperature around 73F. Dew point will be around 49F with an average humidity of 56%. Winds will be 5 mph from the S.

Clear. Low temperature around 55F. Dew point will be around 47F with an average humidity of 58%. Winds will be 4 mph from the S.

Sunny. High temperature around 75F. Dew point will be around 49F with an average humidity of 53%. Winds will be 4 mph from the S.

Clear. Low temperature around 56F. Dew point will be around 49F with an average humidity of 59%. Winds will be 4 mph from the S.