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

5°F

-15°C

Humidity 60%
Wind Speed W 8 mph
Barometer 30.54 in (1035.2 mb)
Dewpoint -6°F (-21°C)
Visibility 10.00 mi
Wind Chill-8°F (-22°C)
Last update 26 Jan 9:53 am CST
Extended Forecast for

Granite City IL

Cold Weather Advisory January 26, 06:00pm until January 27, 06:00am
Extreme Cold Warning January 26, 10:34am until January 26, 12:00pm
Click here for hazard details and duration
Cold Weather Advisory
Extreme Cold Warning
  •  
    Extreme Cold Warning January 26, 10:34am until January 26, 12:00pm

    NOW until 12:00pm Mon

    Extreme Cold Warning

  • Today

    High: 15 °F

    Cold

  • Tonight

    Tonight: Mostly clear, with a low around 4. Southwest wind 6 to 10 mph, with gusts as high as 20 mph.

    Low: 4 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 30. Southwest wind 7 to 11 mph becoming northwest in the afternoon. Winds could gust as high as 20 mph.

    High: 30 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 0. Northwest wind around 6 mph becoming calm in the evening.

    Low: 0 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 30. Calm wind becoming west 5 to 7 mph in the morning.

    High: 30 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 5.

    Low: 5 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly cloudy and cold, with a high near 20.

    High: 20 °F

    Cold

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 2.

    Low: 2 °F

    Mostly Cloudy

Detailed Forecast

Today
Sunny and cold, with a high near 15. Wind chill values as low as -10. Northwest wind 7 to 9 mph becoming southwest in the afternoon.
Tonight
Mostly clear, with a low around 4. Southwest wind 6 to 10 mph, with gusts as high as 20 mph.
Tuesday
Sunny, with a high near 30. Southwest wind 7 to 11 mph becoming northwest in the afternoon. Winds could gust as high as 20 mph.
Tuesday Night
Mostly clear, with a low around 0. Northwest wind around 6 mph becoming calm in the evening.
Wednesday
Mostly sunny, with a high near 30. Calm wind becoming west 5 to 7 mph in the morning.
Wednesday Night
Mostly cloudy, with a low around 5.
Thursday
Mostly cloudy and cold, with a high near 20.
Thursday Night
Mostly cloudy, with a low around 2.
Friday
Mostly sunny and cold, with a high near 18.
Friday Night
Mostly clear, with a low around -2.
Saturday
Mostly sunny, with a high near 22.
Saturday Night
Partly cloudy, with a low around 7.
Sunday
Partly sunny, with a high near 31.
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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:
8:01 am CST Jan 26, 2026
Forecast Valid:
10am 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