10-Day Weather Forecast - Saint Charles, MO

Partly sunny this morning then becoming mostly cloudy. Highs in the upper 60s. Temperature falling to around 60 this afternoon. West winds 5 to 10 mph with gusts up to 20 mph becoming northwest this afternoon.

Partly cloudy in the evening then becoming mostly cloudy. Cooler with lows in the mid 40s. North winds around 5 mph becoming east after midnight.

Partly sunny in the morning then becoming mostly cloudy. Highs in the upper 60s. Southeast winds 5 to 10 mph.

Cloudy. A slight chance of rain in the evening then a chance of rain after midnight. Not as cool. Near steady temperature in the lower 60s. South winds 5 to 10 mph. Chance of rain 30 percent.

Rain likely with a chance of thunderstorms in the morning then rain with a slight chance of thunderstorms in the afternoon. Highs in the lower 70s. Temperature falling into the lower 60s in the afternoon. Southwest winds 10 to 15 mph with gusts up to 25 mph. Chance of rain 90 percent.

Mostly cloudy. Rain likely with a chance of snow in the evening then a slight chance of rain and snow after midnight. Little or no snow accumulation. Breezy and much cooler with lows in the lower 20s. Chance of precipitation 70 percent.

Mostly sunny and breezy. Much cooler with highs in the upper 20s.

Mostly clear. Lows around 20. Highs in the upper 30s.

Mostly clear. Lows around 20. Highs in the upper 30s.

Partly cloudy. Lows in the mid 20s. Highs around 40.

Partly cloudy. Lows in the mid 20s. Highs around 40.

Partly cloudy. Lows in the mid 20s. Highs around 40.

Partly sunny. Highs in the mid 30s.

Partly cloudy. Low temperature around 36F. Dew point will be around 28F with an average humidity of 71%. Winds will be 4 mph from the SE.

Cloudy. High temperature around 45F. Dew point will be around 36F with an average humidity of 76%. Winds will be 6 mph from the SE.

Cloudy with a slight chance of rain. Chance of precipitation 30%. Low temperature around 42F. Dew point will be around 39F with an average humidity of 85%. Winds will be 5 mph from the SE.

Cloudy. High temperature around 49F. Dew point will be around 40F with an average humidity of 77%. Winds will be 2 mph from the N.

Cloudy with a slight chance of rain. Chance of precipitation 30%. Low temperature around 34F. Dew point will be around 32F with an average humidity of 76%. Winds will be 3 mph from the N.