Current conditions at

St. Louis Downtown Airport (KCPS)

Lat: 38.56°NLon: 90.15°WElev: 410ft.

Fair

54°F

12°C

Humidity 47%
Wind Speed N 15 G 24 mph
Barometer 30.44 in (1031.0 mb)
Dewpoint 34°F (1°C)
Visibility 10.00 mi
Wind Chill50°F (10°C)
Last update 27 Mar 3:53 pm CDT
Extended Forecast for

2 Miles WNW Belleville IL

Freeze Warning March 28, 01:00am until March 28, 09:00am
Click here for hazard details and duration
Freeze Warning
  • Tonight

    Tonight: Widespread frost after 4am.  Otherwise, mostly clear, with a low around 29. North wind 5 to 14 mph, with gusts as high as 23 mph.

    Low: 29 °F

    Mostly Clear
    then Frost

  • Saturday

    Saturday: Widespread frost before 8am.  Otherwise, sunny, with a high near 55. Light and variable wind becoming south 5 to 7 mph in the morning.

    High: 55 °F

    Frost then
    Sunny

  • Saturday Night

    Saturday Night: Increasing clouds, with a low around 40. South wind around 7 mph.

    Low: 40 °F

    Increasing
    Clouds

  • Sunday

    Sunday: Partly sunny, with a high near 68. South wind 7 to 14 mph, with gusts as high as 23 mph.

    High: 68 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 57. South wind around 10 mph, with gusts as high as 20 mph.

    Low: 57 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 81.

    High: 81 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 65.

    Low: 65 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A 30 percent chance of rain and thunderstorms after 1pm.  Partly sunny, with a high near 83.

    High: 83 °F

    Mostly Sunny
    then Chance
    Rain

  • Tuesday Night

    Tuesday Night: A chance of rain, then rain likely and possibly a thunderstorm after 1am.  Mostly cloudy, with a low around 50. Chance of precipitation is 70%.

    Low: 50 °F

    Rain Likely

Detailed Forecast

Tonight
Widespread frost after 4am. Otherwise, mostly clear, with a low around 29. North wind 5 to 14 mph, with gusts as high as 23 mph.
Saturday
Widespread frost before 8am. Otherwise, sunny, with a high near 55. Light and variable wind becoming south 5 to 7 mph in the morning.
Saturday Night
Increasing clouds, with a low around 40. South wind around 7 mph.
Sunday
Partly sunny, with a high near 68. South wind 7 to 14 mph, with gusts as high as 23 mph.
Sunday Night
Partly cloudy, with a low around 57. South wind around 10 mph, with gusts as high as 20 mph.
Monday
Mostly sunny, with a high near 81.
Monday Night
Partly cloudy, with a low around 65.
Tuesday
A 30 percent chance of rain and thunderstorms after 1pm. Partly sunny, with a high near 83.
Tuesday Night
A chance of rain, then rain likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 50. Chance of precipitation is 70%.
Wednesday
Rain likely and possibly a thunderstorm before 1pm, then a chance of rain and thunderstorms after 1pm. Mostly cloudy, with a high near 61. Chance of precipitation is 60%.
Wednesday Night
Rain and thunderstorms likely. Mostly cloudy, with a low around 44. Chance of precipitation is 60%.
Thursday
Rain and thunderstorms likely. Mostly cloudy, with a high near 57. Chance of precipitation is 60%.
Thursday Night
A 40 percent chance of rain. Mostly cloudy, with a low around 47.
Friday
A 40 percent chance of rain and thunderstorms. Partly sunny, with a high near 69.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles WNW Belleville IL
 38.55°N 90.04°W (Elev. 538 ft)
1:56 pm CDT Mar 27, 2026
4pm CDT Mar 27, 2026-6pm CDT Apr 3, 2026
 
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Additional Resources

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