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.

Fair

-6°C

22°F

Humidity 55%
Wind Speed N 24 km/h
Barometer 1020.2 mb (30.12 in)
Dewpoint -13°C (8°F)
Visibility 16 km
Wind Chill-13°C (9°F)
Last update 15 Jan 1:53 am CST
Extended Forecast for

Scott Air Force Base / Belleville IL

  • Overnight

    Overnight: Clear, with a low around -9. Northwest wind around 14 km/h.

    Low: -9 °C

    Clear

  • Thursday

    Thursday: Sunny, with a high near 1. Northwest wind 10 to 13 km/h becoming south in the afternoon.

    High: 1 °C

    Sunny

  • Thursday Night

    Thursday Night: A slight chance of snow between 9pm and 1am. Mostly cloudy, with a low around -3. South wind 8 to 16 km/h. Chance of precipitation is 20%.

    Low: -3 °C

    Slight Chance
    Snow

  • Friday

    Friday: Partly sunny, with a high near 8. West wind 16 to 21 km/h increasing to 22 to 27 km/h in the afternoon. Winds could gust as high as 40 km/h.

    High: 8 °C

    Partly Sunny

  • Friday Night

    Friday Night: A chance of sprinkles before 9pm, then a chance of flurries between 9pm and midnight, then a slight chance of snow showers after midnight. Mostly cloudy, with a low around -6. West wind 16 to 23 km/h, with gusts as high as 35 km/h. Chance of precipitation is 20%.

    Low: -6 °C

    Chance
    Sprinkles/Flurries
    then Slight
    Chance Snow
    Showers

  • Saturday

    Saturday: Partly sunny, with a high near -2.

    High: -2 °C

    Partly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around -13.

    Low: -13 °C

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near -2.

    High: -2 °C

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around -9.

    Low: -9 °C

    Partly Cloudy

Detailed Forecast

Overnight
Clear, with a low around -9. Northwest wind around 14 km/h.
Thursday
Sunny, with a high near 1. Northwest wind 10 to 13 km/h becoming south in the afternoon.
Thursday Night
A slight chance of snow between 9pm and 1am. Mostly cloudy, with a low around -3. South wind 8 to 16 km/h. Chance of precipitation is 20%.
Friday
Partly sunny, with a high near 8. West wind 16 to 21 km/h increasing to 22 to 27 km/h in the afternoon. Winds could gust as high as 40 km/h.
Friday Night
A chance of sprinkles before 9pm, then a chance of flurries between 9pm and midnight, then a slight chance of snow showers after midnight. Mostly cloudy, with a low around -6. West wind 16 to 23 km/h, with gusts as high as 35 km/h. Chance of precipitation is 20%.
Saturday
Partly sunny, with a high near -2.
Saturday Night
Partly cloudy, with a low around -13.
Sunday
Mostly sunny, with a high near -2.
Sunday Night
Partly cloudy, with a low around -9.
M.L.King Day
Mostly sunny, with a high near -2.
Monday Night
Mostly clear, with a low around -13.
Tuesday
Sunny, with a high near 1.
Tuesday Night
Mostly clear, with a low around -7.
Wednesday
Mostly sunny, with a high near 6.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Scott Air Force Base / Belleville IL
 38.54°N 89.84°W (Elev. 417 m)
Last Update:
12:21 am CST Jan 15, 2026
Forecast Valid:
2am CST Jan 15, 2026-6pm CST Jan 21, 2026
 
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Additional Resources

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Chance of Precipitation