Granite City, Illinois | 10-Day Weather Forecasts & Weekend Weather | WeatherBug
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10 Day Forecast
  • Forecast night icon
    Night
    Mostly Cloudy
    48°
    Friday 4/19
    Forecast night icon
    48°
    Mostly Cloudy
    Hourly
    Night Details
    Mostly cloudy. Lows around 40. Northwest winds 5 to 10 mph.
  • Forecast day icon
    Saturday
    Mostly Sunny
    60°
    Forecast night icon
    Night
    Mostly Cloudy
    44°
    Saturday 4/20
    Day
    60°
    Mostly Sunny
    Forecast day icon
    Night
    44°
    Mostly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Mostly sunny. Highs around 60. Northwest winds 10 to 15 mph.
    Night Details
    Mostly cloudy. Lows in the upper 30s. Northwest winds 10 to 15 mph diminishing to around 5 mph after midnight.
  • Forecast day icon
    Sunday
    Sunny
    61°
    Forecast night icon
    Night
    Mostly Clear
    44°
    Sunday 4/21
    Day
    61°
    Sunny
    Forecast day icon
    Night
    44°
    Mostly Clear
    Forecast night icon
    Hourly
    Day Details
    Sunny. Highs in the lower 60s. Northwest winds 5 to 10 mph.
    Night Details
    Mostly clear. Lows in the upper 30s. Northwest winds 5 to 10 mph becoming west after midnight.
  • Forecast day icon
    Monday
    Sunny
    71°
    Forecast night icon
    Night
    Partly Cloudy
    53°
    Monday 4/22
    Day
    71°
    Sunny
    Forecast day icon
    Night
    53°
    Partly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Sunny. Highs in the upper 60s.
    Night Details
    Partly cloudy. Not as cool with lows around 50.
  • Forecast day icon
    Tuesday
    50% Chance of Storms
    71°
    Forecast night icon
    Night
    Mostly Cloudy
    49°
    Tuesday 4/23
    Day
    71°
    50% Chance of Storms
    Forecast day icon
    Night
    49°
    Mostly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Partly sunny with a slight chance of showers in the morning then mostly cloudy with a chance of showers with a slight chance of thunderstorms in the afternoon. Highs in the lower 70s. Chance of rain 50 percent.
    Night Details
    Mostly cloudy with a slight chance of showers and thunderstorms in the evening then mostly clear after midnight. Lows in the upper 40s. Chance of rain 20 percent.
  • Forecast day icon
    Wednesday
    Sunny
    66°
    Forecast night icon
    Night
    Partly Cloudy
    48°
    Wednesday 4/24
    Day
    66°
    Sunny
    Forecast day icon
    Night
    48°
    Partly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Sunny. Highs in the upper 60s.
    Night Details
    Partly cloudy. Lows in the mid 40s.
  • Forecast day icon
    Thursday
    30% Chance Rain Showers
    69°
    Forecast night icon
    Night
    50% Chance of Storms
    54°
    Thursday 4/25
    Day
    69°
    30% Chance Rain Showers
    Forecast day icon
    Night
    54°
    50% Chance of Storms
    Forecast night icon
    Hourly
    Day Details
    Partly sunny. A slight chance of showers in the morning then a chance of showers in the afternoon. Highs in the upper 60s. Chance of rain 30 percent.
    Night Details
    Mostly cloudy with a chance of showers with a slight chance of thunderstorms. Lows in the lower 50s. Chance of rain 50 percent.
  • Forecast day icon
    Friday
    60% Chance of Storms
    72°
    Forecast night icon
    Night
    60% Chance of Rain
    62°
    Friday 4/26
    Day
    72°
    60% Chance of Storms
    Forecast day icon
    Night
    62°
    60% Chance of Rain
    Forecast night icon
    Day Details
    A slight chance of thunderstorms. Showers likely mainly in the morning. Highs in the lower 70s. Chance of rain 60 percent.
    Night Details
    Cloudy with a chance of rain. Chance of precipitation 60%. Low temperature around 62F. Dew point will be around 56F with an average humidity of 72%. Winds will be 9 mph from the S.
  • Forecast day icon
    Saturday
    60% Chance of Storms
    77°
    Forecast night icon
    Night
    70% Chance of Storms
    64°
    Saturday 4/27
    Day
    77°
    60% Chance of Storms
    Forecast day icon
    Night
    64°
    70% Chance of Storms
    Forecast night icon
    Day Details
    Cloudy with a 60% chance for rain and thunderstorms. High temperature around 77F. Dew point will be around 59F with an average humidity of 65%. Winds will be 10 mph from the S.
    Night Details
    Mostly cloudy with a 65% chance for rain and thunderstorms. Low temperature around 64F. Dew point will be around 59F with an average humidity of 69%. Winds will be 10 mph from the S.
  • Forecast day icon
    Sunday
    60% Chance of Storms
    79°
    Forecast night icon
    Night
    70% Chance of Rain
    64°
    Sunday 4/28
    Day
    79°
    60% Chance of Storms
    Forecast day icon
    Night
    64°
    70% Chance of Rain
    Forecast night icon
    Day Details
    Cloudy with a 60% chance for rain and thunderstorms. High temperature around 79F. Dew point will be around 59F with an average humidity of 61%. Winds will be 10 mph from the S.
    Night Details
    Partly cloudy with a 65% chance for rain and thunderstorms. Low temperature around 64F. Dew point will be around 58F with an average humidity of 67%. Winds will be 6 mph from the S.