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.

Overcast

18°F

-8°C

Humidity 71%
Wind Speed N 9 mph
Barometer 30.36 in (1028.6 mb)
Dewpoint 10°F (-12°C)
Visibility 10.00 mi
Wind Chill7°F (-14°C)
Last update 29 Jan 9:53 pm CST
Extended Forecast for

Granite City IL

  • Tonight

    Tonight: A chance of snow before midnight, then a chance of flurries between midnight and 1am. Mostly cloudy, with a low around 3. North wind 5 to 7 mph. Chance of precipitation is 30%.

    Low: 3 °F

    Chance Snow
    then Mostly
    Cloudy

  • Friday

    Friday: A chance of flurries after 1pm. Partly sunny and cold, with a high near 19. North wind 5 to 10 mph.

    High: 19 °F

    Chance
    Flurries

  • Friday Night

    Friday Night: A chance of flurries before midnight. Mostly cloudy, with a low around 5. North wind around 10 mph, with gusts as high as 20 mph.

    Low: 5 °F

    Chance
    Flurries

  • Saturday

    Saturday: Mostly sunny and cold, with a high near 19. Wind chill values as low as -10. Northwest wind 8 to 13 mph, with gusts as high as 22 mph.

    High: 19 °F

    Cold

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 3. Northwest wind 5 to 7 mph becoming calm in the evening.

    Low: 3 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 29.

    High: 29 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 19.

    Low: 19 °F

    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 34.

    High: 34 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 19.

    Low: 19 °F

    Mostly Cloudy

Detailed Forecast

Tonight
A chance of snow before midnight, then a chance of flurries between midnight and 1am. Mostly cloudy, with a low around 3. North wind 5 to 7 mph. Chance of precipitation is 30%.
Friday
A chance of flurries after 1pm. Partly sunny and cold, with a high near 19. North wind 5 to 10 mph.
Friday Night
A chance of flurries before midnight. Mostly cloudy, with a low around 5. North wind around 10 mph, with gusts as high as 20 mph.
Saturday
Mostly sunny and cold, with a high near 19. Wind chill values as low as -10. Northwest wind 8 to 13 mph, with gusts as high as 22 mph.
Saturday Night
Mostly clear, with a low around 3. Northwest wind 5 to 7 mph becoming calm in the evening.
Sunday
Mostly sunny, with a high near 29.
Sunday Night
Mostly cloudy, with a low around 19.
Monday
Partly sunny, with a high near 34.
Monday Night
Mostly cloudy, with a low around 19.
Tuesday
A slight chance of rain and snow after noon. Mostly cloudy, with a high near 35. Chance of precipitation is 20%.
Tuesday Night
A 40 percent chance of snow. Mostly cloudy, with a low around 24.
Wednesday
A 20 percent chance of snow. Mostly cloudy, with a high near 34.
Wednesday Night
Mostly cloudy, with a low around 21.
Thursday
Partly sunny, with a high near 35.
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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:
10:01 pm CST Jan 29, 2026
Forecast Valid:
10pm CST Jan 29, 2026-6pm CST Feb 5, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation