10-Day Weather Forecast - Saint Charles, MO

Sunny. Highs in the upper 70s. Southwest winds 5 to 10 mph.

Mostly clear. Lows in the upper 50s. South winds around 5 mph.

Mostly sunny. Highs in the lower 80s. South winds 15 to 20 mph with gusts up to 30 mph.

Mostly cloudy. A slight chance of showers and thunderstorms in the evening then showers likely with a chance of thunderstorms after midnight. Lows in the lower 60s. Chance of rain 70 percent.

A chance of thunderstorms. Showers. Highs in the mid 70s. Chance of rain 90 percent.

Mostly cloudy in the evening then becoming partly cloudy. A chance of showers. A chance of thunderstorms mainly in the evening. Lows in the mid 50s. Chance of rain 50 percent.

Mostly sunny with a 20 percent chance of showers. Highs in the mid 70s.

Partly cloudy. A slight chance of showers and thunderstorms. Lows in the lower 50s. Highs in the lower 70s. Chance of rain 20 percent.

Partly cloudy. A slight chance of showers and thunderstorms. Lows in the lower 50s. Highs in the lower 70s. Chance of rain 20 percent.

Showers likely with a chance of thunderstorms. Lows in the upper 50s. Highs in the mid 70s. Chance of rain 60 percent.

Showers likely with a chance of thunderstorms. Lows in the upper 50s. Highs in the mid 70s. Chance of rain 60 percent.

Mostly clear with a 50% chance for rain and thunderstorms. Low temperature around 52F. Dew point will be around 55F with an average humidity of 80%. Winds will be 7 mph from the NW.

Sunny. High temperature around 69F. Dew point will be around 46F with an average humidity of 56%. Winds will be 9 mph from the NW.

Mostly clear. Low temperature around 51F. Dew point will be around 46F with an average humidity of 66%. Winds will be 4 mph from the NW.

Partly cloudy with a slight chance of rain. Chance of precipitation 25%. High temperature around 69F. Dew point will be around 48F with an average humidity of 59%. Winds will be 1 mph from the NE.

Partly cloudy with a chance of rain. Chance of precipitation 45%. Low temperature around 52F. Dew point will be around 50F with an average humidity of 72%. Winds will be 2 mph from the N.

Cloudy with a chance of rain. Chance of precipitation 40%. High temperature around 66F. Dew point will be around 48F with an average humidity of 62%. Winds will be 2 mph from the N.

Cloudy with a chance of rain. Chance of precipitation 35%. Low temperature around 50F. Dew point will be around 47F with an average humidity of 72%. Winds will be 3 mph from the NW.