Saint Charles, Missouri | 10-Day Weather Forecasts & Weekend Weather | WeatherBug
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10 Day Forecast
  • Forecast night icon
    Night
    Clear
    68°
    Saturday 5/18
    Forecast night icon
    68°
    Clear
    Hourly
    Night Details
    Clear. Patchy fog after midnight. Lows in the mid 60s. South winds around 5 mph.
  • Forecast day icon
    Sunday
    Sunny
    92°
    Forecast night icon
    Night
    Partly Cloudy
    72°
    Sunday 5/19
    Day
    92°
    Sunny
    Forecast day icon
    Night
    72°
    Partly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Sunny. Highs in the upper 80s. South winds 5 to 10 mph.
    Night Details
    Mostly clear in the evening then becoming partly cloudy. Lows in the mid 60s. South winds 5 to 10 mph.
  • Forecast day icon
    Monday
    Mostly Sunny
    90°
    Forecast night icon
    Night
    Partly Cloudy
    72°
    Monday 5/20
    Day
    90°
    Mostly Sunny
    Forecast day icon
    Night
    72°
    Partly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Mostly sunny. A slight chance of showers and thunderstorms in the afternoon. Highs in the upper 80s. South winds 5 to 10 mph with gusts up to 20 mph. Chance of rain 20 percent.
    Night Details
    Partly cloudy with a slight chance of showers and thunderstorms. Lows in the upper 60s. South winds 5 to 10 mph. Chance of rain 20 percent.
  • Forecast day icon
    Tuesday
    Sunny
    94°
    Forecast night icon
    Night
    80% Chance of Storms
    71°
    Tuesday 5/21
    Day
    94°
    Sunny
    Forecast day icon
    Night
    71°
    80% Chance of Storms
    Forecast night icon
    Hourly
    Day Details
    Sunny. A slight chance of showers and thunderstorms in the afternoon. Highs in the lower 90s. Chance of rain 20 percent.
    Night Details
    Showers with thunderstorms likely in the evening then showers likely with a chance of thunderstorms after midnight. Lows in the mid 60s. Chance of rain 80 percent.
  • Forecast day icon
    Wednesday
    50% Chance of Storms
    82°
    Forecast night icon
    Night
    50% Chance of Storms
    62°
    Wednesday 5/22
    Day
    82°
    50% Chance of Storms
    Forecast day icon
    Night
    62°
    50% Chance of Storms
    Forecast night icon
    Hourly
    Day Details
    Partly cloudy. A chance of showers and thunderstorms. Highs in the upper 70s. Lows in the upper 50s. Chance of rain 50 percent.
    Night Details
    Partly cloudy. A chance of showers and thunderstorms. Highs in the upper 70s. Lows in the upper 50s. Chance of rain 50 percent.
  • Forecast day icon
    Thursday
    Sunny
    82°
    Forecast night icon
    Night
    50% Chance of Storms
    62°
    Thursday 5/23
    Day
    82°
    Sunny
    Forecast day icon
    Night
    62°
    50% Chance of Storms
    Forecast night icon
    Hourly
    Day Details
    Sunny. A slight chance of showers and thunderstorms in the afternoon. Highs in the lower 80s. Chance of rain 20 percent.
    Night Details
    Partly cloudy in the evening then becoming mostly cloudy. A chance of thunderstorms. A chance of showers. Lows in the lower 60s. Chance of rain 50 percent.
  • Forecast day icon
    Friday
    50% Chance of Storms
    84°
    Forecast night icon
    Night
    50% Chance of Storms
    68°
    Friday 5/24
    Day
    84°
    50% Chance of Storms
    Forecast day icon
    Night
    68°
    50% Chance of Storms
    Forecast night icon
    Hourly
    Day Details
    Partly sunny with a chance of showers and thunderstorms. Highs in the lower 80s. Chance of rain 50 percent.
    Night Details
    Partly cloudy with a chance of showers. A chance of thunderstorms mainly in the evening. Lows in the lower 60s. Chance of rain 50 percent.
  • Forecast day icon
    Saturday
    40% Chance of Storms
    87°
    Forecast night icon
    Night
    60% Chance of Rain
    68°
    Saturday 5/25
    Day
    87°
    40% Chance of Storms
    Forecast day icon
    Night
    68°
    60% Chance of Rain
    Forecast night icon
    Day Details
    Mostly sunny with a slight chance of thunderstorms. A slight chance of showers in the morning then a chance of showers in the afternoon. Highs in the lower 80s. Chance of rain 40 percent.
    Night Details
    Mostly clear with a 55% chance for rain and thunderstorms. Low temperature around 68F. Dew point will be around 64F with an average humidity of 73%. Winds will be 2 mph from the S.
  • Forecast day icon
    Sunday
    60% Chance of Storms
    84°
    Forecast night icon
    Night
    60% Chance of Storms
    65°
    Sunday 5/26
    Day
    84°
    60% Chance of Storms
    Forecast day icon
    Night
    65°
    60% Chance of Storms
    Forecast night icon
    Day Details
    Mostly sunny with a 60% chance for rain and thunderstorms. High temperature around 84F. Dew point will be around 64F with an average humidity of 62%. Winds will be 1 mph from the NW.
    Night Details
    Clear with a 60% chance for rain and thunderstorms. Low temperature around 65F. Dew point will be around 62F with an average humidity of 72%. Winds will be 2 mph from the N.
  • Forecast day icon
    Monday
    50% Chance of Rain
    83°
    Forecast night icon
    Night
    40% Chance of Rain
    66°
    Monday 5/27
    Day
    83°
    50% Chance of Rain
    Forecast day icon
    Night
    66°
    40% Chance of Rain
    Forecast night icon
    Day Details
    Mostly sunny with a chance of rain. Chance of precipitation 45%. High temperature around 83F. Dew point will be around 62F with an average humidity of 60%. Winds will be 2 mph from the N.
    Night Details
    Mostly clear with a chance of rain. Chance of precipitation 40%. Low temperature around 66F. Dew point will be around 61F with an average humidity of 70%. Winds will be 2 mph from the NE.