Current conditions at
St. Louis Downtown Airport (KCPS)
Lat: 38.56°NLon: 90.15°WElev: 410ft.
Fair
73°F
23°C
| Humidity | 66% |
| Wind Speed | S 15 G 24 mph |
| Barometer | 29.74 in (1007.0 mb) |
| Dewpoint | 61°F (16°C) |
| Visibility | 10.00 mi |
| Last update | 9 Mar 5:53 pm CDT |
Extended Forecast for
Granite City IL
Tonight
Low: 61 °F
Mostly Clear
Tuesday
High: 82 °F
Partly Sunny
Tuesday Night
Low: 56 °F
Slight Chance
T-storms then
Rain LikelyWednesday
High: 65 °F⇓
Showers
Wednesday Night
Low: 33 °F
Mostly Cloudy
Thursday
High: 55 °F
Sunny
Thursday Night
Low: 45 °F
Mostly Cloudy
Friday
High: 64 °F
Mostly Cloudy
Friday Night
Low: 41 °F
Mostly Cloudy
Detailed Forecast
Tonight
Mostly clear, with a low around 61. South wind 7 to 14 mph, with gusts as high as 23 mph.
Tuesday
Partly sunny, with a high near 82. South wind 8 to 16 mph, with gusts as high as 24 mph.
Tuesday Night
A chance of rain and thunderstorms, then rain likely and possibly a thunderstorm after 3am. Mostly cloudy, with a low around 56. South wind 11 to 15 mph, with gusts as high as 26 mph. Chance of precipitation is 60%.
Wednesday
Rain likely and possibly a thunderstorm before 7am, then showers and possibly a thunderstorm between 7am and 1pm, then showers likely after 1pm. Temperature rising to near 65 by 10am, then falling to around 50 during the remainder of the day. Southwest wind 13 to 18 mph becoming northwest in the afternoon. Winds could gust as high as 28 mph. Chance of precipitation is 90%.
Wednesday Night
Mostly cloudy, with a low around 33. Northwest wind 12 to 17 mph decreasing to 6 to 11 mph after midnight. Winds could gust as high as 25 mph.
Thursday
Sunny, with a high near 55.
Thursday Night
Mostly cloudy, with a low around 45.
Friday
Mostly cloudy, with a high near 64.
Friday Night
Mostly cloudy, with a low around 41.
Saturday
Mostly sunny, with a high near 70.
Saturday Night
A 20 percent chance of rain. Partly cloudy, with a low around 52.
Sunday
A 50 percent chance of rain. Mostly cloudy, with a high near 66.
Sunday Night
A chance of rain and snow. Partly cloudy, with a low around 28. Chance of precipitation is 30%.
Monday
Mostly sunny, with a high near 41.
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)
5:51 pm CDT Mar 9, 2026
6pm CDT Mar 9, 2026-6pm CDT Mar 16, 2026
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