Hazardous Weather Conditions
Current conditions at
St. Louis Downtown Airport (KCPS)
Lat: 38.56°NLon: 90.15°WElev: 410ft.
Fair
89°F
32°C
| Humidity | 30% |
| Wind Speed | S 9 G 20 mph |
| Barometer | 29.69 in (1004.8 mb) |
| Dewpoint | 54°F (12°C) |
| Visibility | 10.00 mi |
| Heat Index | 87°F (31°C) |
| Last update | 26 Mar 6:53 pm CDT |
Extended Forecast for
Granite City IL
Tonight
Low: 41 °F
Breezy.
Chance
T-storms then
ShowersFriday
High: 54 °F
Chance
Showers then
Mostly SunnyFriday Night
Low: 32 °F
Mostly Clear
Saturday
High: 57 °F
Sunny
Saturday Night
Low: 41 °F
Mostly Cloudy
Sunday
High: 68 °F
Partly Sunny
Sunday Night
Low: 58 °F
Partly Cloudy
Monday
High: 85 °F
Mostly Sunny
Monday Night
Low: 65 °F
Slight Chance
Rain
Detailed Forecast
Tonight
Showers and thunderstorms likely before 2am, then showers and possibly a thunderstorm between 2am and 4am, then showers likely after 4am. Low around 41. Breezy, with a southwest wind 9 to 14 mph becoming north 15 to 20 mph in the evening. Winds could gust as high as 32 mph. Chance of precipitation is 90%.
Friday
A 30 percent chance of showers, mainly before 8am. Cloudy through mid morning, then gradual clearing, with a high near 54. North wind 15 to 17 mph, with gusts as high as 29 mph.
Friday Night
Mostly clear, with a low around 32. North wind 6 to 13 mph, with gusts as high as 20 mph.
Saturday
Sunny, with a high near 57. Calm wind becoming southeast 5 to 8 mph in the morning.
Saturday Night
Mostly cloudy, with a low around 41. South wind around 7 mph.
Sunday
Partly sunny, with a high near 68.
Sunday Night
Partly cloudy, with a low around 58.
Monday
Mostly sunny, with a high near 85.
Monday Night
A 20 percent chance of rain. Mostly cloudy, with a low around 65.
Tuesday
A 20 percent chance of rain and thunderstorms. Partly sunny, with a high near 88.
Tuesday Night
A 40 percent chance of rain and thunderstorms. Mostly cloudy, with a low around 60.
Wednesday
A 40 percent chance of rain and thunderstorms. Partly sunny, with a high near 79.
Wednesday Night
Rain and thunderstorms likely. Mostly cloudy, with a low around 57. Chance of precipitation is 60%.
Thursday
Rain likely and possibly a thunderstorm. Mostly cloudy, with a high near 74. Chance of precipitation is 60%.
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)
5:41 pm CDT Mar 26, 2026
7pm CDT Mar 26, 2026-6pm CDT Apr 2, 2026
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