Saint Charles, Illinois | 10-Day Weather Forecasts & Weekend Weather | WeatherBug
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10 Day Forecast
  • Forecast day icon
    Friday
    Partly Cloudy
    69°
    Forecast night icon
    Night
    Clear
    49°
    Friday 5/3
    Day
    69°
    Partly Cloudy
    Forecast day icon
    Night
    49°
    Clear
    Forecast night icon
    Hourly
    Day Details
    Partly cloudy in the morning then clearing. Highs in the lower 70s. Northeast winds 10 to 15 mph.
    Night Details
    Clear. Lows in the upper 40s. East winds 5 to 10 mph.
  • Forecast day icon
    Saturday
    40% Chance of Storms
    76°
    Forecast night icon
    Night
    50% Chance of Storms
    52°
    Saturday 5/4
    Day
    76°
    40% Chance of Storms
    Forecast day icon
    Night
    52°
    50% Chance of Storms
    Forecast night icon
    Hourly
    Day Details
    Partly cloudy in the morning then mostly cloudy with a chance of thunderstorms in the afternoon. Highs in the upper 70s. South winds 5 to 10 mph. Chance of precipitation 40 percent.
    Night Details
    Mostly cloudy with a chance of thunderstorms in the evening then partly cloudy with a slight chance of thunderstorms after midnight. Lows around 50. Northwest winds 10 to 15 mph. Chance of precipitation 50 percent.
  • Forecast day icon
    Sunday
    Mostly Sunny
    67°
    Forecast night icon
    Night
    Partly Cloudy
    46°
    Sunday 5/5
    Day
    67°
    Mostly Sunny
    Forecast day icon
    Night
    46°
    Partly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Mostly sunny. Highs in the upper 60s. Northeast winds 5 to 10 mph.
    Night Details
    Partly cloudy. Lows in the mid 40s.
  • Forecast day icon
    Monday
    Partly Cloudy
    69°
    Forecast night icon
    Night
    60% Chance of Storms
    57°
    Monday 5/6
    Day
    69°
    Partly Cloudy
    Forecast day icon
    Night
    57°
    60% Chance of Storms
    Forecast night icon
    Hourly
    Day Details
    Partly cloudy. A slight chance of showers in the afternoon. Highs in the lower 70s. Chance of precipitation 20 percent.
    Night Details
    Partly cloudy with a slight chance of showers in the evening then mostly cloudy with showers likely with a chance of thunderstorms after midnight. Lows in the upper 50s. Chance of precipitation 60 percent.
  • Forecast day icon
    Tuesday
    80% Chance of Storms
    78°
    Forecast night icon
    Night
    50% Chance of Storms
    58°
    Tuesday 5/7
    Day
    78°
    80% Chance of Storms
    Forecast day icon
    Night
    58°
    50% Chance of Storms
    Forecast night icon
    Hourly
    Day Details
    Showers with a chance of thunderstorms in the morning then showers likely with a chance of thunderstorms in the afternoon. Highs in the upper 70s. Chance of precipitation 80 percent.
    Night Details
    Partly cloudy. A chance of thunderstorms in the evening. Lows in the upper 50s. Chance of precipitation 50 percent.
  • Forecast day icon
    Wednesday
    40% Chance Rain Showers
    78°
    Forecast night icon
    Night
    40% Chance of Storms
    60°
    Wednesday 5/8
    Day
    78°
    40% Chance Rain Showers
    Forecast day icon
    Night
    60°
    40% Chance of Storms
    Forecast night icon
    Hourly
    Day Details
    Mostly cloudy in the morning then partly cloudy with a chance of showers in the afternoon. Highs in the upper 70s. Chance of precipitation 40 percent.
    Night Details
    Partly cloudy. A chance of thunderstorms in the evening. Lows in the mid 50s. Chance of precipitation 40 percent.
  • Forecast day icon
    Thursday
    Partly Cloudy
    76°
    Forecast night icon
    Night
    30% Chance of Rain
    53°
    Thursday 5/9
    Day
    76°
    Partly Cloudy
    Forecast day icon
    Night
    53°
    30% Chance of Rain
    Forecast night icon
    Day Details
    Partly cloudy. Highs in the lower 70s.
    Night Details
    Partly cloudy with a slight chance of rain. Chance of precipitation 30%. Low temperature around 53F. Dew point will be around 49F with an average humidity of 72%. Winds will be 5 mph from the NW.
  • Forecast day icon
    Friday
    40% Chance of Rain
    64°
    Forecast night icon
    Night
    30% Chance of Rain
    46°
    Friday 5/10
    Day
    64°
    40% Chance of Rain
    Forecast day icon
    Night
    46°
    30% Chance of Rain
    Forecast night icon
    Day Details
    Mostly cloudy with a chance of rain. Chance of precipitation 35%. High temperature around 64F. Dew point will be around 47F with an average humidity of 61%. Winds will be 10 mph from the NW.
    Night Details
    Partly cloudy with a slight chance of rain. Chance of precipitation 25%. Low temperature around 46F. Dew point will be around 42F with an average humidity of 72%. Winds will be 9 mph from the NW.
  • Forecast day icon
    Saturday
    30% Chance of Rain
    62°
    Forecast night icon
    Night
    30% Chance of Rain
    46°
    Saturday 5/11
    Day
    62°
    30% Chance of Rain
    Forecast day icon
    Night
    46°
    30% Chance of Rain
    Forecast night icon
    Day Details
    Sunny with a slight chance of rain. Chance of precipitation 30%. High temperature around 62F. Dew point will be around 40F with an average humidity of 54%. Winds will be 13 mph from the NW.
    Night Details
    Mostly clear with a slight chance of rain. Chance of precipitation 25%. Low temperature around 46F. Dew point will be around 41F with an average humidity of 69%. Winds will be 7 mph from the NW.
  • Forecast day icon
    Sunday
    30% Chance of Rain
    65°
    Forecast night icon
    Night
    Clear
    48°
    Sunday 5/12
    Day
    65°
    30% Chance of Rain
    Forecast day icon
    Night
    48°
    Clear
    Forecast night icon
    Day Details
    Sunny with a slight chance of rain. Chance of precipitation 25%. High temperature around 65F. Dew point will be around 40F with an average humidity of 51%. Winds will be 9 mph from the NW.
    Night Details
    Clear. Low temperature around 48F. Dew point will be around 41F with an average humidity of 63%. Winds will be 4 mph from the NW.