10-Day Weather Forecast - Castalia, IA

Mostly sunny. Not as warm with highs in the upper 70s. Northwest winds 10 to 20 mph with gusts up to 30 mph.

Partly cloudy in the evening then becoming mostly clear. Cooler with lows in the mid 50s. North winds 10 to 15 mph.

Mostly sunny. Highs in the lower 70s. Light winds.

Mostly clear. Lows in the mid 50s. North winds around 5 mph becoming southwest after midnight.

Partly cloudy. Highs in the upper 70s. Lows in the upper 50s.

Partly cloudy. Highs in the upper 70s. Lows in the upper 50s.

Partly cloudy. Highs in the upper 70s. Lows in the upper 50s.

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

Partly cloudy. Highs in the lower 80s. Lows in the mid 60s.

Partly cloudy. Highs in the lower 80s. Lows in the mid 60s.

Partly cloudy. Highs in the upper 80s. Lows in the upper 60s.

Partly cloudy. Highs in the upper 80s. Lows in the upper 60s.

Partly cloudy. Highs in the upper 80s. Lows in the upper 60s.

Clear with widely scattered thunderstorms. Chance of storms 25%. Low temperature around 67F. Dew point will be around 65F with an average humidity of 73%. Winds will be 2 mph from the NW.

Sunny. High temperature around 85F. Dew point will be around 65F with an average humidity of 67%. Winds will be 2 mph from the N.

Clear. Low temperature around 66F. Dew point will be around 65F with an average humidity of 77%. Winds will be 1 mph from the SE.

Sunny. High temperature around 83F. Dew point will be around 66F with an average humidity of 70%. Winds will be 2 mph from the SE.

Clear with widely scattered thunderstorms. Chance of storms 25%. Low temperature around 66F. Dew point will be around 65F with an average humidity of 76%. Winds will be 2 mph from the SE.