Current conditions at

St. Louis Downtown Airport (KCPS)

Lat: 38.56°NLon: 90.15°WElev: 410ft.

Fair

44°F

7°C

Humidity 49%
Wind Speed SE 5 mph
Barometer 30.19 in (1022.7 mb)
Dewpoint 26°F (-3°C)
Visibility 10.00 mi
Wind Chill41°F (5°C)
Last update 12 Feb 7:53 pm CST
Extended Forecast for

Granite City IL

  • Tonight

    Tonight: Partly cloudy, with a low around 33. Southeast wind 3 to 6 mph.

    Low: 33 °F

    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 60. South wind 5 to 9 mph.

    High: 60 °F

    Sunny

  • Friday Night

    Friday Night: Increasing clouds, with a low around 38. Southeast wind around 6 mph becoming calm  after midnight.

    Low: 38 °F

    Increasing
    Clouds

  • Saturday

    Saturday: Rain, mainly after noon.  High near 53. Calm wind becoming southeast 5 to 8 mph in the morning.  Chance of precipitation is 80%.

    High: 53 °F

    Chance Rain
    then Rain

  • Saturday Night

    Saturday Night: Rain.  Low around 44. East wind around 7 mph.  Chance of precipitation is 90%.

    Low: 44 °F

    Rain

  • Sunday

    Sunday: A 20 percent chance of rain before noon.  Mostly sunny, with a high near 59.

    High: 59 °F

    Slight Chance
    Rain then
    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 37.

    Low: 37 °F

    Mostly Clear

  • Washington's Birthday

    Washington's Birthday: Mostly sunny, with a high near 63.

    High: 63 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 46.

    Low: 46 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around 33. Southeast wind 3 to 6 mph.
Friday
Sunny, with a high near 60. South wind 5 to 9 mph.
Friday Night
Increasing clouds, with a low around 38. Southeast wind around 6 mph becoming calm after midnight.
Saturday
Rain, mainly after noon. High near 53. Calm wind becoming southeast 5 to 8 mph in the morning. Chance of precipitation is 80%.
Saturday Night
Rain. Low around 44. East wind around 7 mph. Chance of precipitation is 90%.
Sunday
A 20 percent chance of rain before noon. Mostly sunny, with a high near 59.
Sunday Night
Mostly clear, with a low around 37.
Washington's Birthday
Mostly sunny, with a high near 63.
Monday Night
Mostly cloudy, with a low around 46.
Tuesday
Mostly cloudy, with a high near 67.
Tuesday Night
Mostly cloudy, with a low around 56.
Wednesday
Partly sunny, with a high near 71.
Wednesday Night
A 20 percent chance of rain. Partly cloudy, with a low around 46.
Thursday
A 20 percent chance of rain. Sunny, with a high near 62.
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ABOUT THIS FORECAST

 
Point Forecast:
Granite City IL
 38.73°N 90.11°W (Elev. 417 ft)
7:26 pm CST Feb 12, 2026
8pm CST Feb 12, 2026-6pm CST Feb 19, 2026
 
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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