10-Day Weather Forecast - Johnston, IA

Partly sunny. Not as cool with highs in the lower 30s. Southwest winds 5 to 10 mph with gusts up to 20 mph.

Mostly cloudy. Lows around 18. Northwest winds 5 to 10 mph.

Partly sunny in the morning then mostly cloudy with a chance of snow in the afternoon. Little or no snow accumulation. Highs in the upper 20s. Northeast winds around 5 mph becoming southeast in the afternoon. Chance of snow 30 percent.

Cloudy. Snow mainly in the evening. Moderate snow accumulation. Lows around 12. East winds around 10 mph becoming northeast after midnight. Chance of snow 80 percent.

Mostly cloudy in the morning then becoming partly sunny. Highs around 20.

Mostly cloudy. Colder with lows 5 below to zero.

Partly sunny in the morning then becoming mostly cloudy. Highs in the upper 20s.

Mostly cloudy in the evening then becoming partly cloudy. Not as cool. Near steady temperature in the mid 20s.

Partly sunny in the morning then becoming mostly cloudy. Highs in the mid 30s.

Cloudy. A slight chance of rain and snow in the evening then a chance of rain and snow after midnight. Lows in the lower 20s. Chance of precipitation 30 percent.

Mostly cloudy. A slight chance of rain and snow in the morning. Highs in the mid 30s. Temperature falling into the mid 20s in the afternoon. Chance of precipitation 20 percent.

Mostly cloudy. Lows around 10 above.

Partly sunny with a slight chance of snow in the morning then mostly cloudy in the afternoon. Highs in the mid 20s. Chance of snow 20 percent.

Mostly cloudy. Low temperature around 22F. Dew point will be around 17F with an average humidity of 79%. Winds will be 3 mph from the W.

Partly cloudy. High temperature around 27F. Dew point will be around 18F with an average humidity of 72%. Winds will be 3 mph from the NW.

Partly cloudy. Low temperature around 20F. Dew point will be around 17F with an average humidity of 78%. Winds will be 3 mph from the NW.

Mostly sunny. High temperature around 28F. Dew point will be around 18F with an average humidity of 72%. Winds will be 1 mph from the SE.

Partly cloudy. Low temperature around 26F. Dew point will be around 21F with an average humidity of 79%. Winds will be 2 mph from the S.