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.

Fair

6°F

-14°C

Humidity 66%
Wind Speed NW 12 mph
Barometer 30.39 in (1029.8 mb)
Dewpoint -3°F (-19°C)
Visibility 10.00 mi
Wind Chill-10°F (-23°C)
Last update 25 Jan 11:53 pm CST
Extended Forecast for

Granite City IL

Extreme Cold Warning until January 26, 12:00pm
Click here for hazard details and duration
Extreme Cold Warning
  •  
    Extreme Cold Warning until January 26, 12:00pm

    NOW until 12:00pm Mon

    Extreme Cold Warning

  • Overnight

    Low: -6 °F

    Mostly Clear

  • Monday

    Monday: Sunny and cold, with a high near 16. Wind chill values as low as -20. Northwest wind 7 to 9 mph becoming southwest in the afternoon.

    High: 16 °F

    Cold

  • Monday Night

    Monday Night: Clear, with a low around 6. Southwest wind 6 to 10 mph, with gusts as high as 22 mph.

    Low: 6 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 31. Southwest wind 7 to 11 mph becoming northwest in the afternoon. Winds could gust as high as 22 mph.

    High: 31 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around -1. Northwest wind around 6 mph becoming calm in the evening.

    Low: -1 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 27.

    High: 27 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 2.

    Low: 2 °F

    Partly Cloudy

  • Thursday

    Thursday: Partly sunny and cold, with a high near 19.

    High: 19 °F

    Cold

Detailed Forecast

Overnight
Mostly clear, with a low around -6. Wind chill values as low as -20. Northwest wind around 8 mph.
Monday
Sunny and cold, with a high near 16. Wind chill values as low as -20. Northwest wind 7 to 9 mph becoming southwest in the afternoon.
Monday Night
Clear, with a low around 6. Southwest wind 6 to 10 mph, with gusts as high as 22 mph.
Tuesday
Sunny, with a high near 31. Southwest wind 7 to 11 mph becoming northwest in the afternoon. Winds could gust as high as 22 mph.
Tuesday Night
Mostly clear, with a low around -1. Northwest wind around 6 mph becoming calm in the evening.
Wednesday
Mostly sunny, with a high near 27.
Wednesday Night
Partly cloudy, with a low around 2.
Thursday
Partly sunny and cold, with a high near 19.
Thursday Night
Mostly cloudy, with a low around 4.
Friday
Partly sunny and cold, with a high near 19.
Friday Night
Partly cloudy, with a low around -1.
Saturday
Sunny, with a high near 22.
Saturday Night
Partly cloudy, with a low around 6.
Sunday
Partly sunny, with a high near 30.
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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:
10:16 pm CST Jan 25, 2026
Forecast Valid:
12am CST Jan 26, 2026-6pm CST Feb 1, 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