Current conditions at
St. Louis Downtown Airport (KCPS)
Lat: 38.56°NLon: 90.15°WElev: 410ft.
Fair
64°F
18°C
| Humidity | 63% |
| Wind Speed | Calm |
| Barometer | 30.15 in (1020.7 mb) |
| Dewpoint | 51°F (11°C) |
| Visibility | 10.00 mi |
| Last update | 6 Oct 9:53 am CDT |
Extended Forecast for
Granite City IL
Today
High: 81 °F
Sunny
Tonight
Low: 56 °F
Mostly Clear
Wednesday
High: 89 °F
Sunny
Wednesday Night
Low: 58 °F
Mostly Clear
Thursday
High: 83 °F
Sunny
Thursday Night
Low: 54 °F
Mostly Clear
Friday
High: 84 °F
Sunny
Friday Night
Low: 56 °F
Clear
Saturday
High: 88 °F
Sunny
Detailed Forecast
Today
Sunny, with a high near 81. South wind around 7 mph.
Tonight
Mostly clear, with a low around 56. South wind around 5 mph.
Wednesday
Sunny, with a high near 89. Light southwest wind becoming west 5 to 9 mph in the morning.
Wednesday Night
Mostly clear, with a low around 58. West wind around 5 mph becoming calm in the evening.
Thursday
Sunny, with a high near 83. Calm wind becoming northeast 5 to 7 mph in the morning.
Thursday Night
Mostly clear, with a low around 54.
Friday
Sunny, with a high near 84.
Friday Night
Clear, with a low around 56.
Saturday
Sunny, with a high near 88.
Saturday Night
A 20 percent chance of showers after 1am. Partly cloudy, with a low around 60.
Sunday
Mostly sunny, with a high near 86.
Sunday Night
Mostly clear, with a low around 61.
Columbus Day
Mostly sunny, with a high near 89.
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)
6:51 am CDT Oct 6, 2026
10am CDT Oct 6, 2026-6pm CDT Oct 12, 2026
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