10-Day Weather Forecast - Lake Saint Louis, MO

Mostly sunny. Highs in the upper 80s. Northwest winds 5 to 10 mph.

Partly cloudy in the evening then clearing. Lows in the upper 50s. North winds around 5 mph.

Sunny. Highs around 80. Northwest winds 5 to 10 mph.

Mostly clear. Lows in the upper 50s.

Partly cloudy. Highs in the mid 70s. Lows in the mid 50s.

Partly cloudy. Highs in the mid 70s. Lows in the mid 50s.

Mostly clear. Highs in the upper 70s. Lows in the lower 50s.

Mostly clear. Highs in the upper 70s. Lows in the lower 50s.

Mostly clear. Highs in the upper 70s. Lows in the lower 50s.

Partly cloudy. Lows in the mid 50s.

Mostly sunny. A slight chance of showers in the afternoon. Highs around 80. Chance of rain 20 percent.

Mostly clear. Low temperature around 62F. Dew point will be around 58F with an average humidity of 75%. Winds will be 2 mph from the S.

Partly cloudy. High temperature around 78F. Dew point will be around 62F with an average humidity of 71%. Winds will be 4 mph from the SE.

Partly cloudy. Low temperature around 62F. Dew point will be around 62F with an average humidity of 80%. Winds will be 3 mph from the S.

Partly cloudy. High temperature around 77F. Dew point will be around 64F with an average humidity of 77%. Winds will be 3 mph from the SE.

Partly cloudy. Low temperature around 63F. Dew point will be around 64F with an average humidity of 85%. Winds will be 1 mph from the SE.

Partly cloudy. High temperature around 79F. Dew point will be around 65F with an average humidity of 76%. Winds will be 3 mph from the SE.

Partly cloudy. Low temperature around 65F. Dew point will be around 64F with an average humidity of 81%. Winds will be 3 mph from the S.