Granite City, Illinois | 10-Day Weather Forecasts & Weekend Weather | WeatherBug
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10 Day Forecast
  • Forecast day icon
    Sunday
    Partly Sunny
    76°
    Forecast night icon
    Night
    50% Chance of Storms
    62°
    Sunday 5/5
    Day
    76°
    Partly Sunny
    Forecast day icon
    Night
    62°
    50% Chance of Storms
    Forecast night icon
    Hourly
    Day Details
    Partly sunny. Highs in the mid 70s. Northeast winds 5 to 10 mph.
    Night Details
    Cloudy with a chance of showers. A slight chance of thunderstorms after midnight. Lows around 60. East winds 5 to 10 mph. Chance of rain 50 percent.
  • Forecast day icon
    Monday
    50% Chance of Storms
    78°
    Forecast night icon
    Night
    70% Chance of Storms
    67°
    Monday 5/6
    Day
    78°
    50% Chance of Storms
    Forecast day icon
    Night
    67°
    70% Chance of Storms
    Forecast night icon
    Hourly
    Day Details
    Mostly cloudy in the morning then becoming partly sunny. A slight chance of thunderstorms. A chance of showers mainly in the morning. Highs in the upper 70s. East winds 5 to 10 mph. Chance of rain 50 percent.
    Night Details
    Partly cloudy with a slight chance of showers and thunderstorms in the evening then mostly cloudy with showers likely with a chance of thunderstorms after midnight. Lows in the mid 60s. Southeast winds 10 to 15 mph. Chance of rain 70 percent.
  • Forecast day icon
    Tuesday
    70% Chance of Storms
    83°
    Forecast night icon
    Night
    50% Chance of Storms
    61°
    Tuesday 5/7
    Day
    83°
    70% Chance of Storms
    Forecast day icon
    Night
    61°
    50% Chance of Storms
    Forecast night icon
    Hourly
    Day Details
    Partly sunny in the morning then clearing. Showers likely with a chance of thunderstorms. Highs in the mid 80s. Southwest winds 10 to 15 mph with gusts up to 25 mph. Chance of rain 70 percent.
    Night Details
    Mostly clear. A chance of showers and thunderstorms mainly in the evening. Lows in the upper 50s. Chance of rain 50 percent.
  • Forecast day icon
    Wednesday
    Thunderstorms
    81°
    Forecast night icon
    Night
    50% Chance of Storms
    61°
    Wednesday 5/8
    Day
    81°
    Thunderstorms
    Forecast day icon
    Night
    61°
    50% Chance of Storms
    Forecast night icon
    Hourly
    Day Details
    Showers likely with a chance of thunderstorms in the morning then showers with thunderstorms likely in the afternoon. Highs in the lower 80s. Chance of rain 90 percent.
    Night Details
    Mostly cloudy with a chance of showers and thunderstorms in the evening then partly cloudy after midnight. Lows in the upper 50s. Chance of rain 50 percent.
  • Forecast day icon
    Thursday
    Sunny
    78°
    Forecast night icon
    Night
    Partly Cloudy
    54°
    Thursday 5/9
    Day
    78°
    Sunny
    Forecast day icon
    Night
    54°
    Partly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Sunny. A slight chance of showers in the afternoon. Highs in the upper 70s. Chance of rain 20 percent.
    Night Details
    Mostly clear in the evening then becoming partly cloudy. A 20 percent chance of showers. Lows in the lower 50s.
  • Forecast day icon
    Friday
    Mostly Sunny
    65°
    Forecast night icon
    Night
    Mostly Clear
    51°
    Friday 5/10
    Day
    65°
    Mostly Sunny
    Forecast day icon
    Night
    51°
    Mostly Clear
    Forecast night icon
    Hourly
    Day Details
    Mostly sunny with a slight chance of showers. A slight chance of thunderstorms in the afternoon. Highs in the upper 60s. Chance of rain 20 percent.
    Night Details
    Mostly clear. Lows in the upper 40s. Highs in the lower 70s.
  • Forecast day icon
    Saturday
    Mostly Sunny
    67°
    Forecast night icon
    Night
    Mostly Clear
    51°
    Saturday 5/11
    Day
    67°
    Mostly Sunny
    Forecast day icon
    Night
    51°
    Mostly Clear
    Forecast night icon
    Day Details
    Mostly clear. Lows in the upper 40s. Highs in the lower 70s.
    Night Details
    Mostly clear. Low temperature around 51F. Dew point will be around 41F with an average humidity of 59%. Winds will be 5 mph from the NW.
  • Forecast day icon
    Sunday
    Sunny
    71°
    Forecast night icon
    Night
    Clear
    53°
    Sunday 5/12
    Day
    71°
    Sunny
    Forecast day icon
    Night
    53°
    Clear
    Forecast night icon
    Day Details
    Sunny. High temperature around 71F. Dew point will be around 44F with an average humidity of 50%. Winds will be 5 mph from the NW.
    Night Details
    Clear. Low temperature around 53F. Dew point will be around 47F with an average humidity of 64%. Winds will be 3 mph from the W.
  • Forecast day icon
    Monday
    Sunny
    74°
    Forecast night icon
    Night
    Clear
    56°
    Monday 5/13
    Day
    74°
    Sunny
    Forecast day icon
    Night
    56°
    Clear
    Forecast night icon
    Day Details
    Sunny. High temperature around 74F. Dew point will be around 48F with an average humidity of 53%. Winds will be 2 mph from the W.
    Night Details
    Clear. Low temperature around 56F. Dew point will be around 51F with an average humidity of 67%. Winds will be 3 mph from the S.
  • Forecast day icon
    Tuesday
    Sunny
    74°
    Forecast night icon
    Night
    30% Chance of Rain
    59°
    Tuesday 5/14
    Day
    74°
    Sunny
    Forecast day icon
    Night
    59°
    30% Chance of Rain
    Forecast night icon
    Day Details
    Sunny. High temperature around 74F. Dew point will be around 51F with an average humidity of 57%. Winds will be 6 mph from the S.
    Night Details
    Partly cloudy with a slight chance of rain. Chance of precipitation 25%. Low temperature around 59F. Dew point will be around 54F with an average humidity of 71%. Winds will be 6 mph from the S.