10-Day Weather Forecast - Lake Saint Louis, MO

Mostly sunny. Highs in the lower 60s. Southeast winds 10 to 15 mph.

Partly cloudy in the evening then becoming mostly cloudy. Not as cool with lows in the mid 50s. South winds 10 to 15 mph. Gusts up to 30 mph after midnight.

Mostly cloudy. A chance of rain in the morning then rain with a slight chance of thunderstorms in the afternoon. Breezy with highs in the upper 60s. South winds 15 to 25 mph with gusts up to 40 mph. Chance of rain 90 percent.

Rain and snow in the evening then a chance of snow after midnight. Light snow accumulation. Breezy and much cooler with lows in the lower 20s. Chance of precipitation 90 percent.

Mostly cloudy with a chance of snow in the morning then partly sunny in the afternoon. Windy and much cooler with highs in the upper 20s. Chance of snow 50 percent. Wind chill values as low as 5 above.

Mostly clear. Lows 10 to 15. Wind chill values as low as zero.

Mostly sunny. Highs in the mid 30s. Wind chill values as low as zero in the morning.

Mostly cloudy. A slight chance of rain and snow after midnight. Not as cool with lows in the upper 20s. Chance of precipitation 20 percent.

Mostly cloudy in the morning then becoming partly sunny. Not as cool with highs around 60.

Mostly cloudy in the evening then clearing. Not as cool with lows around 40.

Sunny. Not as cool with highs around 70.

Partly cloudy. Low temperature around 48F. Dew point will be around 46F with an average humidity of 65%. Winds will be 2 mph from the SW.

Partly cloudy. High temperature around 70F. Dew point will be around 47F with an average humidity of 62%. Winds will be 2 mph from the NE.

Mostly clear. Low temperature around 49F. Dew point will be around 45F with an average humidity of 67%. Winds will be 3 mph from the SE.

Sunny. High temperature around 75F. Dew point will be around 49F with an average humidity of 57%. Winds will be 3 mph from the S.

Clear. Low temperature around 54F. Dew point will be around 49F with an average humidity of 62%. Winds will be 3 mph from the S.

Sunny. High temperature around 72F. Dew point will be around 48F with an average humidity of 56%. Winds will be 2 mph from the E.

Mostly clear. Low temperature around 51F. Dew point will be around 45F with an average humidity of 58%. Winds will be 2 mph from the E.