I-270 MO weather conditions near Granite City, Illinois
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Seasoned Weather Conditions
Current Weather Conditions
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7 day weather forecast
Current condition: Fair 73°F 2025-10-15T18:50:00-05:00 
Tonight 2025-10-15, Mostly Clear. Mostly clear, with a low around 60. East wind 3 to 5 mph.
Thursday 2025-10-16, Mostly Sunny. Mostly sunny, with a high near 83. Southeast wind 5 to 9 mph.- Thursday Night 2025-10-16, Partly Cloudy. Partly cloudy, with a low around 59. Southeast wind 7 to 9 mph, with gusts as high as 20 mph.
Friday 2025-10-17, Partly Sunny. Partly sunny, with a high near 83. South wind 7 to 11 mph.Friday Night 2025-10-17, Partly Cloudy then Slight Chance Showers. A 20 percent chance of showers after 1am. Partly cloudy, with a low around 65. South wind 7 to 10 mph.
Saturday 2025-10-18, Showers. Showers and possibly a thunderstorm. High near 79. Chance of precipitation is 80%.
Saturday Night 2025-10-18, Showers Likely. Showers likely, mainly before 1am. Mostly cloudy, with a low around 50. Chance of precipitation is 70%.
Sunday 2025-10-19, Slight Chance Showers. A 20 percent chance of showers before 1pm. Mostly sunny, with a high near 66.
Sunday Night 2025-10-19, Clear. Clear, with a low around 44.
Monday 2025-10-20, Sunny. Sunny, with a high near 74.- Monday Night 2025-10-20, Mostly Clear. Mostly clear, with a low around 52.
Tuesday 2025-10-21, Sunny then Slight Chance Showers. A 20 percent chance of showers. Sunny, with a high near 75.
Tuesday Night 2025-10-21, Slight Chance Showers. A 20 percent chance of showers. Mostly clear, with a low around 48.
Wednesday 2025-10-22, Sunny. Sunny, with a high near 70.