10-Day Weather Forecast - Sioux City, IA

Partly sunny in the morning then becoming mostly cloudy. A chance of flurries. Windy cooler with highs in the mid 30s. Temperature falling to around 17 in the afternoon. Northwest winds 20 to 30 mph with gusts up to 50 mph.

Mostly clear and breezy. Much colder with lows around 10 above. Northwest winds 20 to 25 mph with gusts up to 40 mph diminishing to 5 to 10 mph with gusts up to 20 mph after midnight.

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

Partly cloudy in the evening then becoming mostly cloudy. Not as cool with lows in the upper 20s. South winds around 10 mph with gusts up to 25 mph.

Mostly sunny. Highs in the upper 30s. Temperature falling into the lower 30s in the afternoon.

Mostly clear. Lows around 20.

Mostly sunny. Highs in the upper 30s.

Mostly cloudy. Not as cool with lows in the upper 20s.

Mostly sunny. Highs in the mid 40s.

Partly cloudy. Lows around 30.

Partly sunny. Highs in the lower 40s.

Mostly cloudy. Lows in the mid 20s.

Partly sunny. Highs in the lower 40s.

Partly cloudy. Low temperature around 34F. Dew point will be around 32F with an average humidity of 87%. Winds will be 3 mph from the S.

Partly cloudy. High temperature around 46F. Dew point will be around 34F with an average humidity of 73%. Winds will be 2 mph from the E.

Partly cloudy. Low temperature around 35F. Dew point will be around 33F with an average humidity of 82%. Winds will be 2 mph from the E.

Partly cloudy. High temperature around 40F. Dew point will be around 29F with an average humidity of 70%. Winds will be 6 mph from the N.

Partly cloudy. Low temperature around 26F. Dew point will be around 23F with an average humidity of 78%. Winds will be 4 mph from the N.