Current conditions at
St. Louis Downtown Airport (KCPS)
Lat: 38.56°NLon: 90.15°WElev: 410ft.
Fair
85°F
29°C
| Humidity | 37% |
| Wind Speed | SE 13 G 20 mph |
| Barometer | 30.07 in (1017.9 mb) |
| Dewpoint | 56°F (13°C) |
| Visibility | 10.00 mi |
| Heat Index | 84°F (29°C) |
| Last update | 4 Oct 3:53 pm CDT |
Extended Forecast for
Granite City IL
Tonight
Low: 59 °F
Clear
Sunday
High: 89 °F
Sunny
Sunday Night
Low: 64 °F
Mostly Clear
Monday
High: 87 °F
Sunny then
Chance
T-stormsMonday Night
Low: 65 °F
Chance
ShowersTuesday
High: 79 °F
Chance
Showers then
Chance
T-stormsTuesday Night
Low: 55 °F
Mostly Cloudy
Wednesday
High: 76 °F
Sunny
Wednesday Night
Low: 50 °F
Mostly Clear
Detailed Forecast
Tonight
Clear, with a low around 59. South wind 5 to 8 mph.
Sunday
Sunny, with a high near 89. South wind 6 to 11 mph.
Sunday Night
Mostly clear, with a low around 64. South wind 5 to 8 mph.
Monday
A 40 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 87. South wind 3 to 8 mph.
Monday Night
A 50 percent chance of showers and thunderstorms. Partly cloudy, with a low around 65. South wind 3 to 6 mph.
Tuesday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 79.
Tuesday Night
Mostly cloudy, with a low around 55.
Wednesday
Sunny, with a high near 76.
Wednesday Night
Mostly clear, with a low around 50.
Thursday
Sunny, with a high near 77.
Thursday Night
Mostly clear, with a low around 54.
Friday
Sunny, with a high near 81.
Friday Night
Partly cloudy, with a low around 56.
Saturday
Sunny, with a high near 77.
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)
4:16 pm CDT Oct 4, 2025
4pm CDT Oct 4, 2025-6pm CDT Oct 11, 2025
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