10-Day Weather Forecast - Watertown, SD

Mostly cloudy in the morning then becoming partly sunny. A 50 percent chance of snow. Snow accumulation up to 1 inch possible. Very windy and much colder with highs in the lower 20s. Temperature falling to around 5 above in the afternoon. Northwest winds 30 to 40 mph with gusts up to 60 mph. Wind chill values as low as 20 below.

Mostly clear in the evening then becoming partly cloudy. Windy and much colder with lows around 2 below. Temperature rising to around 2 above after midnight. Northwest winds 20 to 30 mph with gusts up to 45 mph becoming north 5 to 10 mph after midnight. Wind chill values as low as 20 below.

Mostly cloudy in the morning then becoming partly sunny. Highs in the upper 20s. South winds 15 to 20 mph with gusts up to 35 mph.

Mostly cloudy and not as cold. Near steady temperature in the mid 20s. Southwest winds 10 to 15 mph becoming northwest after midnight.

Partly sunny. Highs in the mid 20s.

Mostly clear. Colder with lows 5 to 10 above.

Partly sunny. Highs in the upper 20s.

Mostly cloudy. Lows around 20. Highs in the upper 30s.

Mostly cloudy. Lows around 20. Highs in the upper 30s.

Mostly cloudy. Lows around 20. Highs in the upper 30s.

Partly sunny. Highs around 30.

Mostly cloudy. Lows 15 to 20. Highs in the mid 30s.

Mostly cloudy. Lows 15 to 20. Highs in the mid 30s.

Mostly cloudy. Low temperature around 26F. Dew point will be around 25F with an average humidity of 93%. Winds will be 3 mph from the SE.

Partly cloudy. High temperature around 34F. Dew point will be around 26F with an average humidity of 80%. Winds will be 2 mph from the S.

Mostly cloudy. Low temperature around 26F. Dew point will be around 24F with an average humidity of 89%. Winds will be 2 mph from the SE.

Cloudy. High temperature around 28F. Dew point will be around 20F with an average humidity of 76%. Winds will be 4 mph from the NW.

Cloudy. Low temperature around 18F. Dew point will be around 15F with an average humidity of 80%. Winds will be 3 mph from the NW.