Granite City, IL

Current conditions, hourly and 7-day forecast, and live radar for Granite City, IL 62040. Right now: showers and thunderstorms, 72°F. Data from the National Weather Service.

• Tonight: Showers and thunderstorms. Mostly cloudy, with a low around 72. Northeast wind around 3 mph. Chance of precipitation is 90%.
• Thursday: Showers and thunderstorms before 11am, then a chance of showers and thunderstorms between 11am and 3pm. Mostly cloudy, with a high near 81. North wind 2 to 6 mph. Chance of precipitation is 90%.
• Thursday Night: Mostly cloudy, with a low around 68. Northeast wind 1 to 5 mph.
• Friday: Partly sunny, with a high near 85. East wind around 6 mph.
• Friday Night: Partly cloudy, with a low around 68. Southeast wind around 3 mph.
• Saturday: A slight chance of rain showers between 7am and 1pm, then a slight chance of showers and thunderstorms. Mostly sunny, with a high near 90. Chance of precipitation is 20%.