10-Day Weather Forecast - Grenville, SD

Mostly sunny. Highs in the lower 80s. East winds around 5 mph.

Mostly clear in the evening then becoming partly cloudy. Lows in the lower 60s. Southeast winds 5 to 10 mph.

Mostly sunny. Highs in the upper 80s. South winds 5 to 10 mph with gusts up to 20 mph.

Mostly clear. Lows in the upper 60s. Highs in the upper 80s.

Mostly clear. Lows in the upper 60s. Highs in the upper 80s.

Clear. Lows in the upper 60s.

Mostly clear. Hot. Highs in the mid 90s. Lows in the lower 70s.

Mostly clear. Hot. Highs in the mid 90s. Lows in the lower 70s.

Mostly clear. Hot. Highs in the mid 90s. Lows in the lower 70s.

Mostly clear. Hot. Highs in the mid 90s. Lows in the lower 70s.

Mostly clear. Hot. Highs in the mid 90s. Lows in the lower 70s.

Mostly clear. Low temperature around 69F. Dew point will be around 62F with an average humidity of 61%. Winds will be 8 mph from the SE.

Sunny. High temperature around 89F. Dew point will be around 61F with an average humidity of 53%. Winds will be 6 mph from the S.

Clear. Low temperature around 68F. Dew point will be around 62F with an average humidity of 61%. Winds will be 6 mph from the SE.

Sunny. High temperature around 83F. Dew point will be around 61F with an average humidity of 60%. Winds will be 5 mph from the S.

Clear. Low temperature around 66F. Dew point will be around 61F with an average humidity of 65%. Winds will be 6 mph from the S.

Mostly sunny. High temperature around 84F. Dew point will be around 60F with an average humidity of 59%. Winds will be 6 mph from the S.

Clear. Low temperature around 67F. Dew point will be around 61F with an average humidity of 62%. Winds will be 8 mph from the S.