10-Day Weather Forecast - Marshalltown, IA

Mostly sunny. Humid with highs in the upper 80s. South winds 5 to 10 mph. Heat index values up to 100 in the afternoon.

Partly cloudy. Humid with lows around 70. South winds 5 to 10 mph.

Sunny with highs in the lower 90s. South winds 5 to 10 mph. Heat index values up to 104 in the afternoon.

Mostly clear. A slight chance of showers and thunderstorms after midnight. Lows in the lower 70s. Chance of rain 20 percent. Heat index values up to 100 early in the evening.

Mostly sunny with a slight chance of showers and thunderstorms. Highs around 90. Chance of rain 20 percent. Heat index values up to 100.

Partly cloudy. A slight chance of showers and thunderstorms in the evening then a chance of showers and thunderstorms after midnight. Lows around 70. Chance of rain 30 percent.

Mostly sunny with a slight chance of thunderstorms. A chance of showers mainly in the morning. Highs in the upper 80s. Chance of rain 30 percent.

Partly cloudy with a chance of showers and thunderstorms. Lows in the upper 60s. Chance of rain 50 percent.

Mostly sunny. A slight chance of showers and thunderstorms in the morning. Highs in the lower 80s. Chance of rain 20 percent.

Partly cloudy with a slight chance of showers and thunderstorms. Lows in the lower 60s. Chance of rain 20 percent.

Mostly sunny. Highs around 80.

Mostly clear. Low temperature around 65F. Dew point will be around 65F with an average humidity of 90%. Winds will be 4 mph from the NE.

Sunny. High temperature around 78F. Dew point will be around 64F with an average humidity of 73%. Winds will be 3 mph from the NE.

Clear. Low temperature around 64F. Dew point will be around 65F with an average humidity of 88%. Winds will be 2 mph from the SE.

Sunny. High temperature around 80F. Dew point will be around 64F with an average humidity of 72%. Winds will be 2 mph from the SW.

Clear. Low temperature around 65F. Dew point will be around 66F with an average humidity of 84%. Winds will be 1 mph from the E.

Sunny. High temperature around 77F. Dew point will be around 63F with an average humidity of 72%. Winds will be 3 mph from the N.

Mostly clear with a slight chance of rain. Chance of precipitation 25%. Low temperature around 62F. Dew point will be around 64F with an average humidity of 87%. Winds will be 3 mph from the N.