10-Day Weather Forecast - Sioux City, IA

Mostly sunny. Highs in the upper 30s. Northwest winds 10 to 15 mph with gusts up to 25 mph.

Mostly clear. Cooler with lows around 17. Northwest winds around 5 mph becoming east after midnight.

Mostly sunny. Highs in the upper 30s. South winds 10 to 15 mph.

Mostly cloudy in the evening then becoming partly cloudy. Not as cool with lows in the upper 20s.

Mostly sunny. Not as cool with highs in the upper 40s.

Partly cloudy. Lows in the lower 30s.

Partly sunny. Highs in the mid 40s.

Mostly cloudy. Lows in the lower 30s.

Mostly cloudy in the morning then becoming partly sunny. Highs around 50.

Partly cloudy in the evening then becoming mostly cloudy. Lows in the mid 30s.

Mostly sunny. Highs in the lower 50s.

Mostly cloudy. Low temperature around 33F. Dew point will be around 32F with an average humidity of 78%. Winds will be 5 mph from the NW.

Partly cloudy. High temperature around 49F. Dew point will be around 31F with an average humidity of 65%. Winds will be 4 mph from the S.

Partly cloudy. Low temperature around 34F. Dew point will be around 31F with an average humidity of 74%. Winds will be 1 mph from the S.

Partly cloudy. High temperature around 43F. Dew point will be around 29F with an average humidity of 66%. Winds will be 5 mph from the N.

Partly cloudy. Low temperature around 29F. Dew point will be around 25F with an average humidity of 71%. Winds will be 5 mph from the N.

Sunny. High temperature around 37F. Dew point will be around 23F with an average humidity of 62%. Winds will be 6 mph from the N.

Clear. Low temperature around 27F. Dew point will be around 21F with an average humidity of 69%. Winds will be 2 mph from the N.