10-Day Weather Forecast - Saint Charles, MO

As of

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  • 82|67°F
    Partly Sunny

    Today

    82°F

    Partly sunny. Near steady temperature in the lower 80s. East winds around 5 mph.

    Tonight

    67°F

    Partly cloudy in the evening, then clearing. Lows in the mid 60s. East winds around 5 mph.

    Hourly details
  • 82|69°F
    Mostly Sunny

    Day

    82°F

    Mostly sunny. Highs in the mid 80s. Southeast winds around 5 mph.

    Night

    69°F

    Partly cloudy in the evening, then becoming mostly cloudy. Lows in the upper 60s. East winds around 5 mph in the evening, becoming light and variable.

    Hourly details
  • 88|70°F
    Mostly Sunny

    Day

    88°F

    Mostly sunny. A slight chance of showers and thunderstorms in the afternoon. Highs around 90. Southwest winds around 5 mph. Chance of rain 20 percent.

    Night

    70°F

    Mostly clear. A slight chance of showers and thunderstorms in the evening. Lows in the upper 60s. Chance of rain 20 percent.

    Hourly details
  • 86|65°F
    Mostly Sunny

    Day

    86°F

    Mostly clear. Highs in the upper 80s.

    Night

    65°F

    Mostly clear. Lows in the mid 60s.

    Hourly details
  • 83|66°F
    Mostly Sunny

    Day

    83°F

    Mostly clear. Highs in the upper 80s.

    Night

    66°F

    Mostly clear. Lows in the mid 60s.

    Hourly details
  • 86|73°F
    Mostly Sunny

    Day

    86°F

    Mostly clear. Highs in the upper 80s.

    Night

    73°F

    Mostly clear with a slight chance of showers in the evening, then partly cloudy after midnight. Lows around 70. Chance of rain 20 percent.

    Hourly details
  • 94|78°F
    Mostly Sunny

    Day

    94°F

    Mostly sunny. Highs in the mid 90s.

    Night

    78°F

    Mostly clear with a 30% chance for rain and thunderstorms. Low temperature around 78F. Dew point will be around 69F with an average humidity of 66%. Winds will be 6 mph from the S.

  • 94|75°F
    30% Chance of Rain

    Day

    94°F

    Mostly sunny with a 35% chance for rain and thunderstorms. High temperature around 94F. Dew point will be around 71F with an average humidity of 62%. Winds will be 6 mph from the SW.

    Night

    75°F

    Mostly clear with a 25% chance for rain and thunderstorms. Low temperature around 75F. Dew point will be around 71F with an average humidity of 69%. Winds will be 2 mph from the SW.

  • 90|72°F
    30% Chance of Rain

    Day

    90°F

    Partly cloudy with a 35% chance for rain and thunderstorms. High temperature around 90F. Dew point will be around 71F with an average humidity of 65%. Winds will be 3 mph from the W.

    Night

    72°F

    Partly cloudy with a 40% chance for rain and thunderstorms. Low temperature around 72F. Dew point will be around 70F with an average humidity of 74%. Winds will be 1 mph from the NW.

  • 87|70°F
    30% Chance of Rain

    Day

    87°F

    Partly cloudy with a 40% chance for rain and thunderstorms. High temperature around 87F. Dew point will be around 69F with an average humidity of 67%. Winds will be 1 mph from the W.

    Night

    70°F

    Clear with a 30% chance for rain and thunderstorms. Low temperature around 70F. Dew point will be around 67F with an average humidity of 73%. Winds will be 2 mph from the E.