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.

Light Rain

44°F

7°C

Humidity 96%
Wind Speed NE 7 mph
Barometer 29.85 in (1011.0 mb)
Dewpoint 43°F (6°C)
Visibility 10.00 mi
Wind Chill40°F (4°C)
Last update 15 Feb 2:53 am CST
Extended Forecast for

2 Miles WNW Belleville IL

  • Overnight

    Overnight: Rain, mainly before 5am. Low around 45. Northeast wind around 8 mph. Chance of precipitation is 90%.

    Low: 45 °F

    Rain

  • Sunday

    Sunday: Cloudy through mid morning, then gradual clearing, with a high near 56. North wind 5 to 10 mph becoming light northwest in the afternoon.

    High: 56 °F

    Gradual
    Clearing

  • Sunday Night

    Sunday Night: Patchy fog after 11pm. Otherwise, mostly clear, with a low around 36. Light and variable wind.

    Low: 36 °F

    Patchy Fog

  • Washington's Birthday

    Washington's Birthday: Patchy fog before 10am. Otherwise, mostly sunny, with a high near 63. Light south wind increasing to 5 to 10 mph in the morning.

    High: 63 °F

    Patchy Fog
    then Mostly
    Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 42. South wind 6 to 8 mph.

    Low: 42 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 65.

    High: 65 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 58. Breezy.

    Low: 58 °F

    Mostly Cloudy
    and Breezy
    then Partly
    Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 70.

    High: 70 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 45.

    Low: 45 °F

    Mostly Clear

Detailed Forecast

Overnight
Rain, mainly before 5am. Low around 45. Northeast wind around 8 mph. Chance of precipitation is 90%.
Sunday
Cloudy through mid morning, then gradual clearing, with a high near 56. North wind 5 to 10 mph becoming light northwest in the afternoon.
Sunday Night
Patchy fog after 11pm. Otherwise, mostly clear, with a low around 36. Light and variable wind.
Washington's Birthday
Patchy fog before 10am. Otherwise, mostly sunny, with a high near 63. Light south wind increasing to 5 to 10 mph in the morning.
Monday Night
Mostly cloudy, with a low around 42. South wind 6 to 8 mph.
Tuesday
Mostly cloudy, with a high near 65.
Tuesday Night
Mostly cloudy, with a low around 58. Breezy.
Wednesday
Mostly sunny, with a high near 70.
Wednesday Night
Mostly clear, with a low around 45.
Thursday
A 30 percent chance of showers after noon. Sunny, with a high near 71.
Thursday Night
A 20 percent chance of showers. Partly cloudy, with a low around 40.
Friday
Mostly sunny, with a high near 52.
Friday Night
A 20 percent chance of showers. Partly cloudy, with a low around 31.
Saturday
Mostly sunny, with a high near 50.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles WNW Belleville IL
 38.55°N 90.04°W (Elev. 538 ft)
Last Update:
2:41 am CST Feb 15, 2026
Forecast Valid:
3am CST Feb 15, 2026-6pm CST Feb 21, 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