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

2 Miles WNW Belleville IL

  • Overnight

    Overnight: Mostly clear, with a low around 29. North wind 10 to 13 mph, with gusts as high as 22 mph.

    Low: 29 °F

    Mostly Clear

  • Sunday

    Sunday: Increasing clouds, with a high near 48. Northeast wind 10 to 13 mph, with gusts as high as 20 mph.

    High: 48 °F

    Increasing
    Clouds

  • Sunday Night

    Sunday Night: Rain, snow, and sleet, becoming all rain after 3am. Low around 34. East wind around 10 mph, with gusts as high as 21 mph. Chance of precipitation is 100%. Little or no snow and sleet accumulation expected.

    Low: 34 °F

    Rain/Sleet
    Likely then
    Rain/Snow

  • Monday

    Monday: Rain likely, mainly before noon. Cloudy, with a high near 46. East wind 6 to 10 mph. Chance of precipitation is 60%.

    High: 46 °F

    Rain Likely
    then Slight
    Chance Rain

  • Monday Night

    Monday Night: Rain likely. Cloudy, with a low around 43. East wind around 7 mph. Chance of precipitation is 70%.

    Low: 43 °F

    Rain Likely

  • Tuesday

    Tuesday: Rain likely, mainly before noon. Cloudy, with a high near 66. Chance of precipitation is 70%.

    High: 66 °F

    Rain Likely
    then Chance
    Rain

  • Tuesday Night

    Tuesday Night: Rain likely, mainly after midnight. Mostly cloudy, with a low around 57. Chance of precipitation is 70%.

    Low: 57 °F

    Rain Likely

  • Wednesday

    Wednesday: Rain and possibly a thunderstorm. High near 69. Chance of precipitation is 80%.

    High: 69 °F

    Rain

  • Wednesday Night

    Wednesday Night: Rain likely and possibly a thunderstorm. Mostly cloudy, with a low around 53. Chance of precipitation is 70%.

    Low: 53 °F

    Rain Likely

Detailed Forecast

Overnight
Mostly clear, with a low around 29. North wind 10 to 13 mph, with gusts as high as 22 mph.
Sunday
Increasing clouds, with a high near 48. Northeast wind 10 to 13 mph, with gusts as high as 20 mph.
Sunday Night
Rain, snow, and sleet, becoming all rain after 3am. Low around 34. East wind around 10 mph, with gusts as high as 21 mph. Chance of precipitation is 100%. Little or no snow and sleet accumulation expected.
Monday
Rain likely, mainly before noon. Cloudy, with a high near 46. East wind 6 to 10 mph. Chance of precipitation is 60%.
Monday Night
Rain likely. Cloudy, with a low around 43. East wind around 7 mph. Chance of precipitation is 70%.
Tuesday
Rain likely, mainly before noon. Cloudy, with a high near 66. Chance of precipitation is 70%.
Tuesday Night
Rain likely, mainly after midnight. Mostly cloudy, with a low around 57. Chance of precipitation is 70%.
Wednesday
Rain and possibly a thunderstorm. High near 69. Chance of precipitation is 80%.
Wednesday Night
Rain likely and possibly a thunderstorm. Mostly cloudy, with a low around 53. Chance of precipitation is 70%.
Thursday
Rain likely, mainly before noon. Mostly cloudy, with a high near 70. Chance of precipitation is 60%.
Thursday Night
A 50 percent chance of rain and thunderstorms. Mostly cloudy, with a low around 58.
Friday
Rain and thunderstorms likely. Mostly cloudy, with a high near 74. Chance of precipitation is 60%.
Friday Night
Rain and thunderstorms likely. Mostly cloudy, with a low around 54. Chance of precipitation is 70%.
Saturday
Rain likely. Cloudy, with a high near 65. Chance of precipitation is 60%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles WNW Belleville IL
 38.55°N 90.04°W (Elev. 538 ft)
Last Update:
12:26 am CST Mar 1, 2026
Forecast Valid:
12am CST Mar 1, 2026-6pm CST Mar 7, 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