10-Day Weather Forecast - Lake Saint Louis, MO

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  • |17°F
    Windy
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    Tonight

    17°F

    Mostly cloudy with a chance of rain and snow showers this evening then partly cloudy after midnight. Windy and much cooler with lows around 18. West winds 20 to 30 mph with gusts up to 45 mph. Chance of precipitation 20 percent. Wind chill values as low as 1 below after midnight.

    Hourly details
  • Day

    26°F

    Mostly sunny and blustery. Much cooler with highs in the upper 20s. Northwest winds 15 to 25 mph. Gusts up to 40 mph in the morning. Wind chill values as low as 1 above in the morning.

    Night

    19°F

    Partly cloudy in the evening then clearing. Lows around 18. Northwest winds 10 to 15 mph with gusts up to 25 mph.

    Hourly details
  • Day

    36°F

    Sunny. Highs in the mid 30s. West winds 5 to 10 mph.

    Night

    29°F

    Mostly clear. Lows in the upper 20s. West winds 5 to 10 mph.

    Hourly details
  • Day

    42°F

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

    Night

    26°F

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

    Hourly details
  • Day

    31°F

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

    Night

    24°F

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

    Hourly details
  • Day

    36°F

    Mostly cloudy. Highs in the lower 40s. Lows in the upper 20s.

    Night

    25°F

    Mostly cloudy. Highs in the lower 40s. Lows in the upper 20s.

    Hourly details
  • Weekend Weather

  • Day

    37°F

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

    Night

    24°F

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

    Hourly details
  • Day

    44°F

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

    Night

    31°F

    Partly cloudy. Low temperature around 31F. Dew point will be around 26F with an average humidity of 74%. Winds will be 4 mph from the SE.

  • Day

    43°F

    Partly cloudy. High temperature around 43F. Dew point will be around 30F with an average humidity of 68%. Winds will be 4 mph from the SE.

    Night

    32°F

    Partly cloudy. Low temperature around 32F. Dew point will be around 30F with an average humidity of 79%. Winds will be 2 mph from the SE.

  • Day

    44°F

    Partly cloudy. High temperature around 44F. Dew point will be around 32F with an average humidity of 71%. Winds will be 3 mph from the S.

    Night

    30°F

    Clear. Low temperature around 30F. Dew point will be around 30F with an average humidity of 81%. Winds will be 1 mph from the S.