10-Day Weather Forecast - Saint Charles, IL

Sunny. Highs in the upper 20s. Northwest winds 5 to 10 mph becoming southwest in the afternoon.

Partly cloudy in the evening then becoming mostly cloudy. Lows around 20. South winds 5 to 10 mph.

Cloudy. Highs in the upper 30s. South winds 10 to 15 mph with gusts up to 25 mph.

Mostly cloudy. Near steady temperature in the mid 30s.

Mostly cloudy. Highs in the mid 40s.

Mostly cloudy. Lows around 30.

Cloudy. A chance of rain in the afternoon. Highs in the lower 40s. Chance of precipitation 30 percent.

Cloudy. A chance of rain in the evening. Lows in the lower 40s. Chance of precipitation 30 percent.

Mostly cloudy. Highs in the mid 50s.

Mostly cloudy in the evening then becoming partly cloudy. Lows in the upper 30s.

Mostly cloudy. Highs in the upper 40s.

Cloudy. Low temperature around 38F. Dew point will be around 36F with an average humidity of 85%. Winds will be 4 mph from the N.

Cloudy. High temperature around 44F. Dew point will be around 34F with an average humidity of 77%. Winds will be 5 mph from the N.

Mostly cloudy. Low temperature around 29F. Dew point will be around 26F with an average humidity of 75%. Winds will be 8 mph from the N.

Sunny. High temperature around 36F. Dew point will be around 23F with an average humidity of 65%. Winds will be 6 mph from the N.

Clear. Low temperature around 28F. Dew point will be around 21F with an average humidity of 70%. Winds will be 4 mph from the N.

Mostly sunny. High temperature around 38F. Dew point will be around 23F with an average humidity of 63%. Winds will be 2 mph from the NW.

Partly cloudy. Low temperature around 29F. Dew point will be around 22F with an average humidity of 72%. Winds will be 3 mph from the NE.