10-Day Weather Forecast - Marion, SD

Mostly sunny. A slight chance of showers and thunderstorms in the morning. Humid with highs in the lower 90s. South winds around 10 mph with gusts up to 20 mph. Chance of rain 20 percent. Heat index values up to 100 in the afternoon.

Mostly clear. Humid with lows around 70. Southeast winds 5 to 10 mph. Heat index values in the upper 90s early in the evening.

Sunny, hot with highs in the mid 90s. Southeast winds 5 to 10 mph. Heat index values in the upper 90s in the afternoon.

Mostly clear in the evening, then becoming partly cloudy. Humid with lows in the lower 70s. Southeast winds 5 to 10 mph. Heat index values in the upper 90s early in the evening.

Mostly sunny. A slight chance of showers and thunderstorms in the morning. Highs in the mid 90s. Chance of rain 20 percent. Heat index values up to 100 in the afternoon.

Mostly clear with a chance of showers and thunderstorms in the evening, then partly cloudy after midnight. Lows in the lower 70s. Chance of rain 40 percent. Heat index values in the upper 90s early in the evening.

Mostly sunny. Highs in the lower 90s.

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. A chance of thunderstorms after midnight. Lows in the lower 70s. Chance of rain 50 percent.

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

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 63F with an average humidity of 80%. Winds will be 3 mph from the S.

Sunny. High temperature around 77F. Dew point will be around 60F with an average humidity of 68%. Winds will be 5 mph from the SW.

Mostly clear with a slight chance of rain. Chance of precipitation 30%. Low temperature around 61F. Dew point will be around 59F with an average humidity of 76%. Winds will be 4 mph from the SW.

Mostly sunny with a slight chance of rain. Chance of precipitation 25%. High temperature around 74F. Dew point will be around 57F with an average humidity of 68%. Winds will be 6 mph from the SW.

Mostly clear. Low temperature around 60F. Dew point will be around 57F with an average humidity of 75%. Winds will be 3 mph from the SW.