Current conditions at
St. Louis Downtown Airport (KCPS)
Lat: 38.56°NLon: 90.15°WElev: 410ft.
Fair
43°F
6°C
| Humidity | 43% |
| Wind Speed | NW 17 G 23 mph |
| Barometer | 29.93 in (1013.6 mb) |
| Dewpoint | 22°F (-6°C) |
| Visibility | 10.00 mi |
| Wind Chill | 35°F (2°C) |
| Last update | 20 Feb 12:53 pm CST |
Extended Forecast for
Granite City IL
This Afternoon
High: 44 °F
Sunny
Tonight
Low: 29 °F
Increasing
CloudsSaturday
High: 41 °F
Partly Sunny
Saturday Night
Low: 24 °F
Mostly Clear
Sunday
High: 35 °F
Sunny
Sunday Night
Low: 17 °F
Mostly Clear
Monday
High: 34 °F
Sunny
Monday Night
Low: 22 °F
Mostly Clear
Tuesday
High: 54 °F
Partly Sunny
Detailed Forecast
This Afternoon
Sunny, with a high near 44. West wind 9 to 15 mph, with gusts as high as 23 mph.
Tonight
Increasing clouds, with a low around 29. North wind 3 to 7 mph.
Saturday
Partly sunny, with a high near 41. North wind 7 to 11 mph.
Saturday Night
Mostly clear, with a low around 24. Northwest wind 9 to 13 mph, with gusts as high as 23 mph.
Sunday
Sunny, with a high near 35. Northwest wind 14 to 18 mph, with gusts as high as 31 mph.
Sunday Night
Mostly clear, with a low around 17.
Monday
Sunny, with a high near 34.
Monday Night
Mostly clear, with a low around 22.
Tuesday
Partly sunny, with a high near 54.
Tuesday Night
Mostly cloudy, with a low around 41.
Wednesday
Mostly cloudy, with a high near 64.
Wednesday Night
Mostly cloudy, with a low around 34.
Thursday
Mostly sunny, with a high near 53.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
Granite City IL
38.73°N 90.11°W (Elev. 417 ft)
38.73°N 90.11°W (Elev. 417 ft)
12:26 pm CST Feb 20, 2026
1pm CST Feb 20, 2026-6pm CST Feb 26, 2026
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