10-Day Weather Forecast - Harrison, SD

Partly sunny with a chance of showers with a slight chance of thunderstorms this morning, then sunny this afternoon. Highs in the mid 90s. South winds 5 to 10 mph. Chance of rain 40 percent.

Mostly clear. Humid with lows in the upper 60s. South winds around 5 mph.

Sunny, hot with highs in the mid 90s. Southeast winds 10 to 15 mph.

Partly cloudy. A slight chance of showers and thunderstorms after midnight. Humid with lows in the lower 70s. Southeast winds around 10 mph. Chance of rain 20 percent.

Sunny. A slight chance of showers and thunderstorms in the morning. Humid with highs in the mid 90s. South winds 10 to 15 mph with gusts up to 25 mph. Chance of rain 20 percent. Heat index values in the upper 90s in the afternoon.

Partly cloudy. A chance of showers and thunderstorms, mainly in the evening. Lows around 70. Chance of rain 40 percent. Heat index values in the upper 90s early in the evening.

Mostly sunny. Highs around 90.

Partly cloudy in the evening, then becoming mostly cloudy. A chance of showers and thunderstorms. Lows in the upper 60s. Chance of rain 50 percent.

Mostly cloudy in the morning, then becoming mostly sunny. A chance of showers in the morning. Highs in the upper 80s. Chance of rain 50 percent.

Partly cloudy in the evening, then becoming mostly cloudy. A chance of showers and thunderstorms. Lows around 70. Chance of rain 50 percent.

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

Partly cloudy. Lows in the lower 60s.

Mostly sunny. Highs in the lower 80s.

Mostly clear. Low temperature around 63F. Dew point will be around 62F with an average humidity of 77%. Winds will be 3 mph from the S.

Mostly sunny. High temperature around 78F. Dew point will be around 60F with an average humidity of 66%. Winds will be 6 mph from the SW.

Mostly clear with a slight chance of rain. Chance of precipitation 30%. Low temperature around 60F. Dew point will be around 59F with an average humidity of 74%. Winds will be 3 mph from the S.

Mostly sunny. High temperature around 76F. Dew point will be around 56F with an average humidity of 65%. Winds will be 5 mph from the SW.

Mostly clear. Low temperature around 59F. Dew point will be around 56F with an average humidity of 71%. Winds will be 3 mph from the SW.