10-Day Weather Forecast - Lake Saint Louis, MO

Showers in the morning then mostly sunny with scattered showers in the afternoon. Highs in the mid 50s. Temperature falling into the mid 40s in the afternoon. Southwest winds 15 to 20 mph becoming west in the afternoon. Gusts up to 35 mph. Chance of rain 90 percent.

Partly cloudy in the evening then becoming mostly clear. Much cooler with lows in the mid 20s. West winds 15 to 20 mph with gusts up to 35 mph.

Sunny. Much cooler with highs in the upper 30s. West winds 5 to 10 mph with gusts up to 20 mph becoming southwest in the afternoon.

Partly cloudy. Near steady temperature in the mid 30s. South winds 10 to 15 mph with gusts up to 25 mph.

Partly cloudy. Highs in the mid 50s. Lows in the mid 20s.

Partly cloudy. Highs in the mid 50s. Lows in the mid 20s.

Mostly sunny. Cooler with highs in the lower 40s.

Mostly cloudy. Lows around 30. Highs in the upper 40s.

Mostly cloudy. Lows around 30. Highs in the upper 40s.

Mostly cloudy and not as cool. Near steady temperature in the lower 40s.

Partly sunny. A slight chance of rain in the morning. Not as cool with highs in the upper 50s. Chance of rain 20 percent.

Mostly cloudy. Lows in the lower 40s. Highs in the upper 50s.

Mostly cloudy. Lows in the lower 40s. Highs in the upper 50s.

Cloudy. Low temperature around 54F. Dew point will be around 54F with an average humidity of 91%. Winds will be 6 mph from the S.

Cloudy. High temperature around 64F. Dew point will be around 57F with an average humidity of 88%. Winds will be 7 mph from the SW.

Partly cloudy. Low temperature around 56F. Dew point will be around 56F with an average humidity of 89%. Winds will be 6 mph from the SW.

Cloudy. High temperature around 64F. Dew point will be around 55F with an average humidity of 81%. Winds will be 4 mph from the SW.

Partly cloudy. Low temperature around 45F. Dew point will be around 46F with an average humidity of 79%. Winds will be 4 mph from the N.