10-Day Weather Forecast - Castleton, IL

Mostly sunny. Highs around 70. West winds 5 to 10 mph with gusts up to 20 mph becoming northwest in the afternoon.

Mostly cloudy. Lows in the lower 40s. North winds around 5 mph becoming east after midnight.

Sunny. Highs in the mid 70s. South winds 5 to 10 mph.

Mostly clear in the evening then becoming partly cloudy. Not as cool with lows in the mid 50s. South winds 5 to 10 mph with gusts up to 20 mph.

Partly sunny in the morning then becoming mostly cloudy. Highs around 70.

Mostly cloudy in the evening then clearing. Much cooler with lows in the mid 30s.

Sunny. Much cooler with highs in the lower 50s.

Mostly cloudy. Lows in the upper 30s. Highs around 60.

Mostly cloudy. Lows in the upper 30s. Highs around 60.

Mostly cloudy. Lows in the upper 30s. Highs around 60.

Mostly cloudy. Lows in the upper 30s. Highs around 60.

Mostly cloudy in the evening then becoming partly cloudy. Lows in the mid 40s.

Partly sunny. A chance of rain in the afternoon. Highs in the upper 60s. Chance of rain 30 percent.

Partly cloudy with a slight chance of rain. Chance of precipitation 30%. Low temperature around 41F. Dew point will be around 31F with an average humidity of 47%. Winds will be 9 mph from the N.

Sunny. High temperature around 51F. Dew point will be around 22F with an average humidity of 38%. Winds will be 9 mph from the N.

Mostly clear. Low temperature around 36F. Dew point will be around 19F with an average humidity of 42%. Winds will be 3 mph from the N.

Sunny. High temperature around 51F. Dew point will be around 22F with an average humidity of 38%. Winds will be 3 mph from the S.

Partly cloudy. Low temperature around 40F. Dew point will be around 25F with an average humidity of 47%. Winds will be 4 mph from the S.