10-Day Weather Forecast - Lake Saint Louis, MO

Sunny. Highs in the upper 80s. East winds around 5 mph becoming south in the afternoon.

Clear. Not as cool with lows in the lower 60s. South winds 5 to 10 mph.

Mostly sunny. Highs in the mid 80s. Southwest winds 5 to 10 mph becoming west 10 to 15 mph in the afternoon.

Mostly cloudy in the evening then clearing. Much cooler with lows around 40. North winds 15 to 20 mph with gusts up to 30 mph.

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

Mostly clear in the evening then becoming mostly cloudy. Lows around 40.

Mostly cloudy in the morning then becoming mostly sunny. Highs around 60.

Partly cloudy in the evening then mostly cloudy with a slight chance of rain and thunderstorms after midnight. Lows in the lower 40s. Chance of rain 20 percent.

Mostly cloudy in the morning then becoming partly sunny. Highs in the upper 60s.

Mostly cloudy in the evening then becoming partly cloudy. Lows in the lower 50s.

Sunny. A slight chance of rain in the afternoon. Not as cool with highs in the upper 70s. Chance of rain 20 percent.

Mostly cloudy. A 50 percent chance of rain. Lows in the lower 40s. Highs in the lower 50s.

Mostly cloudy. A 50 percent chance of rain. Lows in the lower 40s. Highs in the lower 50s.

Cloudy. Low temperature around 33F. Dew point will be around 28F with an average humidity of 61%. Winds will be 8 mph from the NE.

Cloudy. High temperature around 51F. Dew point will be around 31F with an average humidity of 61%. Winds will be 7 mph from the E.

Cloudy. Low temperature around 38F. Dew point will be around 34F with an average humidity of 67%. Winds will be 4 mph from the E.

Cloudy. High temperature around 58F. Dew point will be around 40F with an average humidity of 67%. Winds will be 6 mph from the E.

Cloudy with a slight chance of rain. Chance of precipitation 25%. Low temperature around 44F. Dew point will be around 42F with an average humidity of 74%. Winds will be 3 mph from the E.