Hazardous Weather Conditions
Current conditions at
St. Louis Downtown Airport (KCPS)
Lat: 38.56°NLon: 90.15°WElev: 410ft.N/A
| Humidity | NA |
| Wind Speed | NA |
| Barometer | NA |
| Dewpoint | N/A |
| Visibility | NA |
| Last update | *** Not a current observation *** |
Extended Forecast for
Granite City IL
Today
High: 66 °F
Cloudy
Tonight
Low: 57 °F
Slight Chance
T-storms then
Chance RainFriday
High: 78 °F
Chance Rain
then Partly
SunnyFriday Night
Low: 60 °F
Slight Chance
T-storms then
ShowersSaturday
High: 69 °F
Chance
Showers then
Partly SunnySaturday Night
Low: 41 °F
Partly Cloudy
Sunday
High: 65 °F
Sunny
Sunday Night
Low: 47 °F
Mostly Clear
Monday
High: 77 °F
Sunny
Detailed Forecast
Today
Cloudy, with a high near 66. Northwest wind around 6 mph becoming calm in the afternoon.
Tonight
A 40 percent chance of rain and thunderstorms, mainly after 2am. Mostly cloudy, with a low around 57. Calm wind becoming south 5 to 7 mph after midnight.
Friday
A 30 percent chance of rain and thunderstorms, mainly before 8am. Partly sunny, with a high near 78. South wind 8 to 17 mph, with gusts as high as 28 mph.
Friday Night
A slight chance of rain before 9pm, then a slight chance of rain and thunderstorms between 9pm and midnight, then showers and possibly a thunderstorm after midnight. Low around 60. South wind 11 to 14 mph, with gusts as high as 24 mph. Chance of precipitation is 90%.
Saturday
A 50 percent chance of showers before noon. Mostly cloudy, with a high near 69. Southwest wind 9 to 14 mph becoming northwest in the afternoon. Winds could gust as high as 22 mph.
Saturday Night
Partly cloudy, with a low around 41.
Sunday
Sunny, with a high near 65.
Sunday Night
Mostly clear, with a low around 47.
Monday
Sunny, with a high near 77.
Monday Night
A 30 percent chance of showers and thunderstorms after midnight. Mostly clear, with a low around 60.
Tuesday
Showers and possibly a thunderstorm. High near 78. Chance of precipitation is 80%.
Tuesday Night
Showers and possibly a thunderstorm. Low around 52. Chance of precipitation is 90%.
Wednesday
Showers likely. Cloudy, with a high near 63. Chance of precipitation is 70%.
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)
11:01 am CST Mar 5, 2026
11am CST Mar 5, 2026-6pm CDT Mar 11, 2026
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