Current conditions at

St. Louis Downtown Airport (KCPS)

Lat: 38.56°NLon: 90.15°WElev: 410ft.

Fair

68°F

20°C

Humidity 57%
Wind Speed W 8 mph
Barometer 29.73 in (1006.6 mb)
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Last update 7 Nov 10:53 am CST
Extended Forecast for

Granite City IL

  • Today

    Today: Sunny, with a high near 71. West wind 9 to 13 mph, with gusts as high as 20 mph.

    High: 71 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 40. West wind 3 to 7 mph.

    Low: 40 °F

    Mostly Clear

  • Saturday

    Saturday: A 30 percent chance of rain, mainly after 5pm.  Mostly cloudy, with a high near 68. Calm wind becoming southeast 5 to 7 mph in the afternoon.

    High: 68 °F

    Mostly Cloudy
    then Chance
    Rain

  • Saturday Night

    Saturday Night: A 40 percent chance of rain, mainly before midnight.  Mostly cloudy, with a low around 37. Southeast wind 7 to 15 mph becoming northwest in the evening. Winds could gust as high as 22 mph.

    Low: 37 °F

    Chance Rain

  • Sunday

    Sunday: A slight chance of rain and snow between noon and 3pm, then a slight chance of snow after 3pm.  Mostly sunny, with a high near 42. Northwest wind 14 to 18 mph, with gusts as high as 29 mph.  Chance of precipitation is 20%.

    High: 42 °F

    Mostly Sunny
    then Slight
    Chance
    Rain/Snow

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 26.

    Low: 26 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 43.

    High: 43 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 27.

    Low: 27 °F

    Mostly Clear

  • Veterans Day

    Veterans Day: Mostly sunny, with a high near 57.

    High: 57 °F

    Mostly Sunny

Detailed Forecast

Today
Sunny, with a high near 71. West wind 9 to 13 mph, with gusts as high as 20 mph.
Tonight
Mostly clear, with a low around 40. West wind 3 to 7 mph.
Saturday
A 30 percent chance of rain, mainly after 5pm. Mostly cloudy, with a high near 68. Calm wind becoming southeast 5 to 7 mph in the afternoon.
Saturday Night
A 40 percent chance of rain, mainly before midnight. Mostly cloudy, with a low around 37. Southeast wind 7 to 15 mph becoming northwest in the evening. Winds could gust as high as 22 mph.
Sunday
A slight chance of rain and snow between noon and 3pm, then a slight chance of snow after 3pm. Mostly sunny, with a high near 42. Northwest wind 14 to 18 mph, with gusts as high as 29 mph. Chance of precipitation is 20%.
Sunday Night
Partly cloudy, with a low around 26.
Monday
Sunny, with a high near 43.
Monday Night
Mostly clear, with a low around 27.
Veterans Day
Mostly sunny, with a high near 57.
Tuesday Night
Mostly clear, with a low around 43.
Wednesday
Sunny, with a high near 66.
Wednesday Night
Mostly clear, with a low around 39.
Thursday
Mostly sunny, with a high near 62.
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ABOUT THIS FORECAST

 
Point Forecast:
Granite City IL
 38.71°N 90.11°W (Elev. 413 ft)
10:36 am CST Nov 7, 2025
11am CST Nov 7, 2025-6pm CST Nov 13, 2025
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database