10-Day Weather Forecast - Decatur, IA

Mostly cloudy. A chance of showers with a slight chance of thunderstorms in the morning then showers with a chance of thunderstorms in the afternoon. Highs in the lower 70s. South winds 15 to 20 mph with gusts up to 30 mph. Chance of rain 80 percent.

Mostly cloudy. A chance of showers and thunderstorms mainly in the evening. Lows around 60. South winds 10 to 15 mph. Gusts up to 30 mph in the evening. Chance of rain 50 percent.

Partly sunny. Highs in the lower 80s. South winds 15 to 20 mph with gusts up to 30 mph.

Mostly cloudy in the evening then becoming partly cloudy. A slight chance of showers and thunderstorms. Lows in the mid 60s. Chance of rain 20 percent.

Mostly sunny. A chance of showers and thunderstorms in the afternoon. Highs in the mid 80s. Chance of rain 40 percent.

Partly cloudy in the evening then becoming mostly cloudy. A chance of showers. A chance of thunderstorms mainly in the evening. Lows in the upper 50s. Chance of rain 50 percent.

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

Partly cloudy with a chance of showers with a slight chance of thunderstorms. Lows in the mid 50s. Chance of rain 50 percent.

Mostly sunny with a chance of showers. A slight chance of thunderstorms in the afternoon. Highs in the upper 70s. Chance of rain 30 percent.

Partly cloudy in the evening then becoming mostly clear. A chance of showers with a slight chance of thunderstorms. Lows in the mid 50s. Chance of rain 30 percent.

Partly sunny. A chance of showers with a slight chance of thunderstorms in the morning then a chance of showers in the afternoon. Highs in the mid 70s. Chance of rain 50 percent.

Partly cloudy with a 65% chance for rain and thunderstorms. Low temperature around 38F. Dew point will be around 34F with an average humidity of 67%. Winds will be 12 mph from the NW.

Sunny with a slight chance of rain. Chance of precipitation 30%. High temperature around 54F. Dew point will be around 32F with an average humidity of 54%. Winds will be 10 mph from the NW.

Clear. Low temperature around 38F. Dew point will be around 31F with an average humidity of 62%. Winds will be 2 mph from the NW.

Sunny. High temperature around 58F. Dew point will be around 36F with an average humidity of 57%. Winds will be 4 mph from the S.

Clear. Low temperature around 46F. Dew point will be around 41F with an average humidity of 71%. Winds will be 8 mph from the S.

Mostly sunny. High temperature around 65F. Dew point will be around 48F with an average humidity of 69%. Winds will be 13 mph from the S.

Mostly clear. Low temperature around 55F. Dew point will be around 51F with an average humidity of 78%. Winds will be 13 mph from the S.