10-Day Weather Forecast - Johnston, IA

Sunny. Highs in the upper 70s. West winds 5 to 10 mph.

Mostly clear in the evening then partly cloudy with a slight chance of showers and thunderstorms after midnight. Lows in the upper 50s. Southwest winds 5 to 10 mph. Chance of rain 20 percent.

Sunny. Highs in the upper 70s. West winds 10 to 15 mph with gusts up to 25 mph.

Partly cloudy in the evening then mostly cloudy with a chance of showers with a slight chance of thunderstorms after midnight. Lows in the upper 50s. West winds 5 to 10 mph becoming southeast after midnight. Chance of rain 40 percent.

A chance of thunderstorms. Showers. Highs in the lower 80s. Chance of rain 90 percent.

Mostly clear with a slight chance of showers and thunderstorms in the evening then partly cloudy after midnight. Lows around 60. Chance of rain 20 percent.

Mostly sunny. Highs in the upper 70s.

Mostly clear. Lows in the mid 50s.

Sunny. Highs in the lower 80s.

Mostly clear in the evening then partly cloudy with a slight chance of showers and thunderstorms after midnight. Lows in the lower 60s. Chance of rain 20 percent.

Partly sunny with a chance of showers with a slight chance of thunderstorms. Highs in the lower 80s. Chance of rain 40 percent.

Partly cloudy in the evening then becoming mostly cloudy. A slight chance of thunderstorms. A chance of showers in the evening then showers likely after midnight. Lows in the lower 60s. Chance of rain 60 percent.

Partly sunny with a chance of showers with a slight chance of thunderstorms. Highs in the upper 70s. Chance of rain 50 percent.

Mostly clear with a chance of rain. Chance of precipitation 50%. Low temperature around 61F. Dew point will be around 58F with an average humidity of 76%. Winds will be 5 mph from the NE.

Mostly sunny with a slight chance of rain. Chance of precipitation 25%. High temperature around 77F. Dew point will be around 59F with an average humidity of 67%. Winds will be 5 mph from the E.

Partly cloudy. Low temperature around 62F. Dew point will be around 58F with an average humidity of 73%. Winds will be 3 mph from the E.

Sunny. High temperature around 80F. Dew point will be around 60F with an average humidity of 66%. Winds will be 4 mph from the S.

Clear. Low temperature around 64F. Dew point will be around 60F with an average humidity of 74%. Winds will be 3 mph from the S.