10-Day Weather Forecast - Decatur, IA

Mostly cloudy with a chance of flurries in the morning then partly sunny with a slight chance of snow in the afternoon. Breezy and not as cool with highs in the mid 30s. Southwest winds 15 to 20 mph with gusts up to 30 mph becoming northwest 20 to 25 mph with gusts up to 40 mph in the afternoon. Chance of snow 20 percent.

Mostly cloudy in the evening then clearing. Breezy with lows around 3 above. Northwest winds 15 to 25 mph. Gusts up to 40 mph in the evening.

Sunny cooler with highs around 18. Northwest winds 10 to 15 mph with gusts up to 25 mph.

Partly cloudy. Lows around 8 above. Southwest winds around 5 mph.

Mostly sunny. Not as cool with highs in the mid 30s.

Mostly cloudy. Lows in the lower 20s.

Mostly sunny. Highs in the mid 30s.

Partly cloudy in the evening then clearing. Lows around 15.

Mostly sunny. Highs in the mid 30s.

Mostly cloudy. Lows around 20.

Partly sunny. Highs in the lower 30s.

Mostly cloudy. Lows 5 to 10 above.

Mostly cloudy with a 30 percent chance of snow. Cooler with highs 15 to 20.

Mostly cloudy. Low temperature around -3F. Dew point will be around -4F with an average humidity of 74%. Winds will be 11 mph from the N.

Sunny. High temperature around 10F. Dew point will be around -4F with an average humidity of 64%. Winds will be 6 mph from the N.

Mostly clear. Low temperature around -0F. Dew point will be around -2F with an average humidity of 72%. Winds will be 3 mph from the N.

Partly cloudy. High temperature around 15F. Dew point will be around 0F with an average humidity of 65%. Winds will be 3 mph from the SW.

Partly cloudy. Low temperature around 6F. Dew point will be around 4F with an average humidity of 77%. Winds will be 2 mph from the SW.