Hazardous Weather Conditions

Current conditions at

St. Louis Downtown Airport (KCPS)

Lat: 38.56°NLon: 90.15°WElev: 410ft.

N/A

Humidity NA
Wind Speed NA
Barometer NA
Dewpoint N/A
Visibility NA
Last update *** Not a current observation ***
Extended Forecast for

Granite City IL

  • Today

    Today: A 20 percent chance of rain after 1pm.  Partly sunny, with a high near 64. East wind 5 to 7 mph becoming south in the afternoon.

    High: 64 °F

    Slight Chance
    Rain

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming clear, with a low around 30. North wind 5 to 11 mph, with gusts as high as 21 mph.

    Low: 30 °F

    Decreasing
    Clouds

  • Sunday

    Sunday: Partly sunny, with a high near 47. Northeast wind 9 to 11 mph, with gusts as high as 20 mph.

    High: 47 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Snow likely, possibly mixed with rain, becoming all snow after midnight.  Cloudy, with a low around 34. East wind 7 to 10 mph.  Chance of precipitation is 70%. New snow accumulation of less than one inch possible.

    Low: 34 °F

    Rain/Snow
    Likely then
    Snow Likely

  • Monday

    Monday: A chance of rain and snow before 9am, then a chance of rain.  Cloudy, with a high near 44. East wind around 10 mph.  Chance of precipitation is 40%.

    High: 44 °F

    Chance
    Rain/Snow
    then Slight
    Chance Rain

  • Monday Night

    Monday Night: Rain.  Low around 38. Chance of precipitation is 80%.

    Low: 38 °F

    Rain

  • Tuesday

    Tuesday: Rain and possibly a thunderstorm.  High near 59. Chance of precipitation is 90%.

    High: 59 °F

    Rain

  • Tuesday Night

    Tuesday Night: Rain, with thunderstorms also possible after midnight.  Low around 49. Chance of precipitation is 80%.

    Low: 49 °F

    Rain

  • Wednesday

    Wednesday: Rain likely and possibly a thunderstorm.  Cloudy, with a high near 65. Chance of precipitation is 70%.

    High: 65 °F

    Rain Likely

Detailed Forecast

Today
A 20 percent chance of rain after 1pm. Partly sunny, with a high near 64. East wind 5 to 7 mph becoming south in the afternoon.
Tonight
Mostly cloudy, then gradually becoming clear, with a low around 30. North wind 5 to 11 mph, with gusts as high as 21 mph.
Sunday
Partly sunny, with a high near 47. Northeast wind 9 to 11 mph, with gusts as high as 20 mph.
Sunday Night
Snow likely, possibly mixed with rain, becoming all snow after midnight. Cloudy, with a low around 34. East wind 7 to 10 mph. Chance of precipitation is 70%. New snow accumulation of less than one inch possible.
Monday
A chance of rain and snow before 9am, then a chance of rain. Cloudy, with a high near 44. East wind around 10 mph. Chance of precipitation is 40%.
Monday Night
Rain. Low around 38. Chance of precipitation is 80%.
Tuesday
Rain and possibly a thunderstorm. High near 59. Chance of precipitation is 90%.
Tuesday Night
Rain, with thunderstorms also possible after midnight. Low around 49. Chance of precipitation is 80%.
Wednesday
Rain likely and possibly a thunderstorm. Cloudy, with a high near 65. Chance of precipitation is 70%.
Wednesday Night
Rain likely and possibly a thunderstorm before midnight, then a chance of rain. Mostly cloudy, with a low around 50. Chance of precipitation is 60%.
Thursday
A 50 percent chance of rain. Partly sunny, with a high near 69.
Thursday Night
A 50 percent chance of rain. Mostly cloudy, with a low around 55.
Friday
Rain likely and possibly a thunderstorm. Mostly cloudy, with a high near 72. Chance of precipitation is 70%.
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ABOUT THIS FORECAST

 
Point Forecast:
Granite City IL
 38.73°N 90.11°W (Elev. 417 ft)
11:01 am CST Feb 28, 2026
11am CST Feb 28, 2026-6pm CST Mar 6, 2026
 
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Additional Resources

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