10-Day Weather Forecast - Lake Saint Louis, MO

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  • 37|33°F
    Sunny
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    Today

    37°F

    Sunny. Much cooler with highs in the upper 30s. West winds 10 to 15 mph with gusts up to 25 mph becoming southwest 5 to 10 mph this afternoon.

    Tonight

    33°F

    Mostly clear in the evening then becoming partly cloudy. Near steady temperature in the mid 30s. Temperature rising into the mid 30s after midnight. South winds 10 to 15 mph with gusts up to 25 mph.

    Hourly details
  • Weekend Weather

  • Day

    54°F

    Mostly sunny. Not as cool with highs in the mid 50s. South winds 10 to 15 mph becoming west in the afternoon.

    Night

    33°F

    Partly cloudy. Lows in the upper 20s. Northwest winds 5 to 10 mph.

    Hourly details
  • Day

    42°F

    Mostly sunny. Cooler with highs in the lower 40s. North winds around 5 mph becoming northeast in the afternoon.

    Night

    33°F

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

    Hourly details
  • Day

    51°F

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

    Night

    47°F

    Mostly cloudy. Lows in the lower 40s. Highs in the lower 60s.

    Hourly details
  • Day

    62°F

    Mostly cloudy. Lows in the lower 40s. Highs in the lower 60s.

    Night

    50°F

    Mostly cloudy. Lows in the upper 40s. Highs in the upper 60s.

    Hourly details
  • Day

    68°F

    Mostly cloudy. Lows in the upper 40s. Highs in the upper 60s.

    Night

    61°F

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

    Hourly details
  • Day

    71°F

    Mostly sunny. Highs in the lower 70s.

    Night

    49°F

    Mostly clear. Low temperature around 49F. Dew point will be around 56F with an average humidity of 82%. Winds will be 5 mph from the SW.

  • Day

    63°F

    Mostly sunny. High temperature around 63F. Dew point will be around 48F with an average humidity of 73%. Winds will be 2 mph from the SE.

    Night

    49°F

    Partly cloudy. Low temperature around 49F. Dew point will be around 48F with an average humidity of 82%. Winds will be 2 mph from the S.

  • Weekend Weather

  • Day

    58°F

    Partly cloudy. High temperature around 58F. Dew point will be around 47F with an average humidity of 75%. Winds will be 2 mph from the N.

    Night

    44°F

    Partly cloudy. Low temperature around 44F. Dew point will be around 42F with an average humidity of 76%. Winds will be 4 mph from the N.

  • Day

    49°F

    Partly cloudy. High temperature around 49F. Dew point will be around 38F with an average humidity of 69%. Winds will be 6 mph from the N.

    Night

    34°F

    Mostly clear. Low temperature around 34F. Dew point will be around 32F with an average humidity of 73%. Winds will be 6 mph from the N.