Current conditions at
St. Louis Downtown Airport (KCPS)
Lat: 38.56°NLon: 90.15°WElev: 410ft.
Mostly Cloudy
63°F
17°C
| Humidity | 41% |
| Wind Speed | SW 7 mph |
| Barometer | 30.07 in (1018.2 mb) |
| Dewpoint | 39°F (4°C) |
| Visibility | 10.00 mi |
| Last update | 19 Mar 10:53 am CDT |
Extended Forecast for
Granite City IL
Today
High: 75 °F
Chance
SprinklesTonight
Low: 50 °F
Mostly Clear
Friday
High: 82 °F
Sunny
Friday Night
Low: 52 °F
Partly Cloudy
Saturday
High: 81 °F
Sunny
Saturday Night
Low: 59 °F
Mostly Clear
Sunday
High: 86 °F
Mostly Sunny
Sunday Night
Low: 41 °F
Partly Cloudy
Monday
High: 56 °F
Sunny
Detailed Forecast
Today
A chance of sprinkles before 1pm. Cloudy early, then gradual clearing, with a high near 75. South wind 5 to 7 mph.
Tonight
Mostly clear, with a low around 50. South wind 3 to 6 mph.
Friday
Sunny, with a high near 82. Light southwest wind becoming west 8 to 13 mph in the morning.
Friday Night
Partly cloudy, with a low around 52. West wind around 6 mph becoming calm in the evening.
Saturday
Sunny, with a high near 81. Calm wind becoming west around 6 mph in the afternoon.
Saturday Night
Mostly clear, with a low around 59.
Sunday
Mostly sunny, with a high near 86.
Sunday Night
Partly cloudy, with a low around 41.
Monday
Sunny, with a high near 56.
Monday Night
Partly cloudy, with a low around 36.
Tuesday
Mostly cloudy, with a high near 60.
Tuesday Night
Mostly cloudy, with a low around 41.
Wednesday
Mostly sunny, with a high near 71.
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)
10:36 am CDT Mar 19, 2026
11am CDT Mar 19, 2026-6pm CDT Mar 25, 2026
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