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Current conditions at
St. Louis Downtown Airport (KCPS)
Lat: 38.56°NLon: 90.15°WElev: 410ft.
Fair
17°F
-8°C
| Humidity | 62% |
| Wind Speed | W 7 mph |
| Barometer | 30.20 in (1023.5 mb) |
| Dewpoint | 6°F (-14°C) |
| Visibility | 10.00 mi |
| Wind Chill | 7°F (-14°C) |
| Last update | 27 Jan 4:53 am CST |
Extended Forecast for
Granite City IL
Today
High: 29 °F
Sunny
Tonight
Low: 0 °F
Mostly Clear
Wednesday
High: 30 °F
Mostly Sunny
Wednesday Night
Low: 9 °F
Mostly Cloudy
Thursday
High: 20 °F
Cold
Thursday Night
Low: 1 °F
Mostly Cloudy
Friday
High: 16 °F
Cold
Friday Night
Low: 0 °F
Mostly Clear
Saturday
High: 19 °F
Cold
Detailed Forecast
Today
Sunny, with a high near 29. West wind 7 to 11 mph becoming northwest in the afternoon. Winds could gust as high as 20 mph.
Tonight
Mostly clear, with a low around 0. Northwest wind around 6 mph becoming calm in the evening.
Wednesday
Mostly sunny, with a high near 30. Calm wind becoming west 5 to 7 mph.
Wednesday Night
Mostly cloudy, with a low around 9. Light and variable wind.
Thursday
Mostly cloudy and cold, with a high near 20. Calm wind becoming north around 6 mph in the afternoon.
Thursday Night
Mostly cloudy, with a low around 1.
Friday
Mostly sunny and cold, with a high near 16.
Friday Night
Mostly clear, with a low around 0.
Saturday
Mostly sunny and cold, with a high near 19.
Saturday Night
Partly cloudy, with a low around 2.
Sunday
Partly sunny, with a high near 26.
Sunday Night
Mostly cloudy, with a low around 12.
Monday
Partly sunny, with a high near 34.
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)
4:21 am CST Jan 27, 2026
4am CST Jan 27, 2026-6pm CST Feb 2, 2026
Additional Resources
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Hourly Weather Forecast
