10-Day Weather Forecast - Portsmouth, IA

Partly sunny in the morning then cloudy with a chance of snow in the afternoon. Little or no snow accumulation. Not as cool with highs in the lower 30s. South winds 10 to 15 mph. Gusts up to 30 mph in the afternoon. Chance of snow 50 percent.

Cloudy in the evening then becoming partly cloudy. A chance of rain with a slight chance of snow in the evening. A slight chance of freezing rain. Little or no snow accumulation. Ice accumulation around a trace. Not as cool with lows in the mid 20s. South winds 10 to 15 mph with gusts up to 25 mph becoming southwest 5 to 10 mph after midnight. Chance of precipitation 40 percent.

Mostly sunny. Not as cool with highs in the upper 50s. West winds 5 to 10 mph.

Mostly cloudy in the evening then becoming partly cloudy. Not as cool with lows in the upper 30s. Southwest winds around 5 mph.

Sunny warmer with highs around 70.

Partly cloudy. Lows in the mid 40s.

Mostly sunny. Highs in the upper 70s.

Partly cloudy. Lows in the mid 40s.

Mostly sunny. Highs in the upper 70s.

Mostly clear. Lows in the lower 40s.

Mostly sunny. Much cooler with highs in the upper 50s.

Mostly cloudy. Cooler with lows around 30.

Partly sunny. Highs in the lower 50s.

Cloudy. Low temperature around 36F. Dew point will be around 28F with an average humidity of 62%. Winds will be 13 mph from the SE.

Cloudy. High temperature around 52F. Dew point will be around 35F with an average humidity of 70%. Winds will be 10 mph from the SE.

Partly cloudy. Low temperature around 40F. Dew point will be around 40F with an average humidity of 80%. Winds will be 8 mph from the SE.

Partly cloudy. High temperature around 60F. Dew point will be around 41F with an average humidity of 67%. Winds will be 5 mph from the SW.

Partly cloudy. Low temperature around 39F. Dew point will be around 37F with an average humidity of 64%. Winds will be 4 mph from the NW.