Granite City, Illinois | 10-Day Weather Forecasts & Weekend Weather | WeatherBug
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10 Day Forecast
  • Forecast day icon
    Monday
    50% Chance Rain Showers
    68°
    Forecast night icon
    Night
    Partly Cloudy
    56°
    Monday 4/29
    Day
    68°
    50% Chance Rain Showers
    Forecast day icon
    Night
    56°
    Partly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Cloudy late this morning then becoming partly sunny. A 50 percent chance of showers. Highs in the mid 70s. Southwest winds 5 to 10 mph.
    Night Details
    Partly cloudy in the evening then becoming mostly clear. Patchy fog after midnight. Lows in the lower 50s. Northwest winds around 5 mph.
  • Forecast day icon
    Tuesday
    Sunny
    77°
    Forecast night icon
    Night
    Mostly Cloudy
    63°
    Tuesday 4/30
    Day
    77°
    Sunny
    Forecast day icon
    Night
    63°
    Mostly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Sunny. Highs in the lower 80s. South winds 5 to 10 mph.
    Night Details
    Mostly clear in the evening then mostly cloudy with isolated showers and thunderstorms after midnight. Lows in the lower 60s. South winds 10 to 15 mph. Chance of rain 20 percent.
  • Forecast day icon
    Wednesday
    Mostly Sunny
    81°
    Forecast night icon
    Night
    Partly Cloudy
    65°
    Wednesday 5/1
    Day
    81°
    Mostly Sunny
    Forecast day icon
    Night
    65°
    Partly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Mostly sunny. Highs in the mid 80s. South winds 5 to 10 mph.
    Night Details
    Partly cloudy. Isolated showers and thunderstorms after midnight. Lows in the mid 60s. Chance of rain 20 percent.
  • Forecast day icon
    Thursday
    50% Chance of Storms
    84°
    Forecast night icon
    Night
    70% Chance of Storms
    63°
    Thursday 5/2
    Day
    84°
    50% Chance of Storms
    Forecast day icon
    Night
    63°
    70% Chance of Storms
    Forecast night icon
    Hourly
    Day Details
    Mostly sunny. Isolated showers and thunderstorms in the morning then scattered showers and thunderstorms in the afternoon. Highs in the mid 80s. Chance of rain 50 percent.
    Night Details
    Numerous showers. Numerous thunderstorms mainly in the evening. Lows in the lower 60s. Chance of rain 70 percent.
  • Forecast day icon
    Friday
    70% Chance of Storms
    71°
    Forecast night icon
    Night
    50% Chance Rain Showers
    56°
    Friday 5/3
    Day
    71°
    70% Chance of Storms
    Forecast day icon
    Night
    56°
    50% Chance Rain Showers
    Forecast night icon
    Hourly
    Day Details
    Numerous showers. Scattered thunderstorms mainly in the morning. Cooler with highs in the mid 70s. Chance of rain 70 percent.
    Night Details
    Partly cloudy. Scattered showers mainly in the evening. Lows in the lower 50s. Chance of rain 50 percent.
  • Forecast day icon
    Saturday
    Sunny
    75°
    Forecast night icon
    Night
    Partly Cloudy
    60°
    Saturday 5/4
    Day
    75°
    Sunny
    Forecast day icon
    Night
    60°
    Partly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Sunny with isolated showers. Highs in the upper 70s. Chance of rain 20 percent.
    Night Details
    Partly cloudy with isolated showers. Lows in the mid 50s. Chance of rain 20 percent.
  • Forecast day icon
    Sunday
    Mostly Sunny
    77°
    Forecast night icon
    Night
    30% Chance of Rain
    58°
    Sunday 5/5
    Day
    77°
    Mostly Sunny
    Forecast day icon
    Night
    58°
    30% Chance of Rain
    Forecast night icon
    Day Details
    Mostly sunny with isolated showers. Isolated thunderstorms in the afternoon. Highs in the upper 70s. Chance of rain 20 percent.
    Night Details
    Mostly clear with a slight chance of rain. Chance of precipitation 30%. Low temperature around 58F. Dew point will be around 55F with an average humidity of 69%. Winds will be 2 mph from the S.
  • Forecast day icon
    Monday
    40% Chance of Rain
    76°
    Forecast night icon
    Night
    50% Chance of Rain
    61°
    Monday 5/6
    Day
    76°
    40% Chance of Rain
    Forecast day icon
    Night
    61°
    50% Chance of Rain
    Forecast night icon
    Day Details
    Mostly sunny with a chance of rain. Chance of precipitation 40%. High temperature around 76F. Dew point will be around 57F with an average humidity of 64%. Winds will be 3 mph from the S.
    Night Details
    Mostly clear with a chance of rain. Chance of precipitation 50%. Low temperature around 61F. Dew point will be around 57F with an average humidity of 72%. Winds will be 5 mph from the S.
  • Forecast day icon
    Tuesday
    50% Chance of Rain
    77°
    Forecast night icon
    Night
    40% Chance of Rain
    60°
    Tuesday 5/7
    Day
    77°
    50% Chance of Rain
    Forecast day icon
    Night
    60°
    40% Chance of Rain
    Forecast night icon
    Day Details
    Mostly sunny with a chance of rain. Chance of precipitation 45%. High temperature around 77F. Dew point will be around 58F with an average humidity of 64%. Winds will be 5 mph from the S.
    Night Details
    Clear with a chance of rain. Chance of precipitation 35%. Low temperature around 60F. Dew point will be around 56F with an average humidity of 70%. Winds will be 2 mph from the W.
  • Forecast day icon
    Wednesday
    Sunny
    78°
    Forecast night icon
    Night
    30% Chance of Rain
    61°
    Wednesday 5/8
    Day
    78°
    Sunny
    Forecast day icon
    Night
    61°
    30% Chance of Rain
    Forecast night icon
    Day Details
    Sunny. High temperature around 78F. Dew point will be around 57F with an average humidity of 62%. Winds will be 3 mph from the S.
    Night Details
    Clear with a slight chance of rain. Chance of precipitation 25%. Low temperature around 61F. Dew point will be around 58F with an average humidity of 71%. Winds will be 2 mph from the S.