National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

St. Louis Downtown Airport (KCPS)

Lat: 38.56°NLon: 90.15°WElev: 410ft.

Light Snow

3°F

-16°C

Humidity 72%
Wind Speed NE 12 mph
Barometer 30.62 in (1037.9 mb)
Dewpoint -4°F (-20°C)
Visibility 1.00 mi
Wind Chill-14°F (-26°C)
Last update 24 Jan 9:53 am CST
Extended Forecast for

Granite City IL

Cold Weather Advisory January 24, 10:45am until January 24, 12:00pm
Winter Storm Warning January 24, 10:45am until January 25, 06:00pm
Click here for hazard details and duration
Cold Weather Advisory
Winter Storm Warning
  •  
    Cold Weather Advisory January 24, 10:45am until January 24, 12:00pm
    Winter Storm Warning January 24, 10:45am until January 25, 06:00pm

    NOW: Multiple hazards in effect

    Click HERE for Details

  • Today

    High: 12 °F

    Snow Likely
    then Snow

  • Tonight

    Tonight: Snow. Low around 10. North wind 6 to 9 mph. Chance of precipitation is 100%. New snow accumulation of 2 to 4 inches possible.

    Low: 10 °F

    Snow

  • Sunday

    Sunday: Snow, mainly before 3pm. High near 17. North wind 10 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 100%. New snow accumulation of 3 to 5 inches possible.

    High: 17 °F

    Snow

  • Sunday Night

    Sunday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around 1. Wind chill values as low as -15. Northwest wind 9 to 11 mph, with gusts as high as 20 mph.

    Low: 1 °F

    Decreasing
    Clouds

  • Monday

    Monday: Sunny and cold, with a high near 17. West wind 7 to 10 mph.

    High: 17 °F

    Cold

  • Monday Night

    Monday Night: Mostly clear, with a low around 5.

    Low: 5 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 34.

    High: 34 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 7.

    Low: 7 °F

    Partly Cloudy

Detailed Forecast

Today
Snow, mainly after 11am. High near 12. Northeast wind 8 to 10 mph. Chance of precipitation is 90%. Total daytime snow accumulation of 1 to 2 inches possible.
Tonight
Snow. Low around 10. North wind 6 to 9 mph. Chance of precipitation is 100%. New snow accumulation of 2 to 4 inches possible.
Sunday
Snow, mainly before 3pm. High near 17. North wind 10 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 100%. New snow accumulation of 3 to 5 inches possible.
Sunday Night
Mostly cloudy, then gradually becoming mostly clear, with a low around 1. Wind chill values as low as -15. Northwest wind 9 to 11 mph, with gusts as high as 20 mph.
Monday
Sunny and cold, with a high near 17. West wind 7 to 10 mph.
Monday Night
Mostly clear, with a low around 5.
Tuesday
Sunny, with a high near 34.
Tuesday Night
Partly cloudy, with a low around 7.
Wednesday
Mostly sunny, with a high near 27.
Wednesday Night
Partly cloudy, with a low around 7.
Thursday
Mostly sunny, with a high near 22.
Thursday Night
Partly cloudy, with a low around 3.
Friday
Mostly sunny, with a high near 22.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Granite City IL
 38.73°N 90.11°W (Elev. 417 ft)
Last Update:
8:41 am CST Jan 24, 2026
Forecast Valid:
10am CST Jan 24, 2026-6pm CST Jan 30, 2026
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation