10-Day Weather Forecast - Marathon, IA

Sunny with highs in the lower 90s. Light and variable winds becoming southeast around 5 mph in the afternoon.

Mostly clear. Humid with lows in the upper 60s. South winds around 5 mph.

Sunny with highs in the lower 90s. South winds 5 to 10 mph.

Mostly clear. Lows in the lower 70s.

Sunny hot with highs in the mid 90s. Heat index values up to 100.

Mostly clear. Lows in the lower 70s. Heat index values in the upper 90s early in the evening.

Sunny hot with highs in the mid 90s.

Mostly clear. Lows in the upper 60s. Heat index values in the upper 90s early in the evening.

Mostly sunny. Highs in the lower 90s.

Mostly clear in the evening then becoming partly cloudy. Lows in the upper 60s.

Mostly sunny. Highs in the upper 80s.

Clear. Low temperature around 66F. Dew point will be around 62F with an average humidity of 64%. Winds will be 5 mph from the SW.

Mostly sunny with widely scattered thunderstorms. Chance of storms 25%. High temperature around 84F. Dew point will be around 63F with an average humidity of 64%. Winds will be 4 mph from the NE.

Mostly clear with widely scattered thunderstorms. Chance of storms 30%. Low temperature around 63F. Dew point will be around 60F with an average humidity of 68%. Winds will be 3 mph from the E.

Mostly sunny. High temperature around 80F. Dew point will be around 62F with an average humidity of 67%. Winds will be 2 mph from the NE.

Mostly clear. Low temperature around 60F. Dew point will be around 59F with an average humidity of 71%. Winds will be 3 mph from the SE.

Sunny. High temperature around 82F. Dew point will be around 60F with an average humidity of 63%. Winds will be 1 mph from the SE.

Clear. Low temperature around 61F. Dew point will be around 59F with an average humidity of 70%. Winds will be 4 mph from the SE.