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

51°F

11°C

Humidity 100%
Wind Speed Calm
Barometer 30.03 in (1016.6 mb)
Dewpoint 51°F (11°C)
Visibility 10.00 mi
Last update 29 Sep 1:53 am CDT
Extended Forecast for

New Baden IL

  • Overnight

    Overnight: Clear, with a low around 50. Calm wind.

    Low: 50 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 84. Calm wind becoming south around 6 mph in the morning.

    High: 84 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 63. Southeast wind around 5 mph becoming calm in the evening.

    Low: 63 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 89. South wind 5 to 13 mph.

    High: 89 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 69. South wind 7 to 9 mph.

    Low: 69 °F

    Mostly Cloudy

  • Thursday

    Thursday: A 30 percent chance of showers after 1pm. Mostly cloudy, with a high near 89.

    High: 89 °F

    Partly Sunny
    then Chance
    Showers

  • Thursday Night

    Thursday Night: A chance of showers, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 67. Chance of precipitation is 60%.

    Low: 67 °F

    Showers
    Likely

  • Friday

    Friday: Showers likely. Mostly cloudy, with a high near 76. Chance of precipitation is 70%.

    High: 76 °F

    Showers
    Likely

  • Friday Night

    Friday Night: A 40 percent chance of showers, mainly after 1am. Mostly cloudy, with a low around 58.

    Low: 58 °F

    Chance
    Showers

Detailed Forecast

Overnight
Clear, with a low around 50. Calm wind.
Tuesday
Sunny, with a high near 84. Calm wind becoming south around 6 mph in the morning.
Tuesday Night
Partly cloudy, with a low around 63. Southeast wind around 5 mph becoming calm in the evening.
Wednesday
Partly sunny, with a high near 89. South wind 5 to 13 mph.
Wednesday Night
Mostly cloudy, with a low around 69. South wind 7 to 9 mph.
Thursday
A 30 percent chance of showers after 1pm. Mostly cloudy, with a high near 89.
Thursday Night
A chance of showers, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 67. Chance of precipitation is 60%.
Friday
Showers likely. Mostly cloudy, with a high near 76. Chance of precipitation is 70%.
Friday Night
A 40 percent chance of showers, mainly after 1am. Mostly cloudy, with a low around 58.
Saturday
A 40 percent chance of showers. Mostly cloudy, with a high near 70.
Saturday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 58.
Sunday
Partly sunny, with a high near 71.
Sunday Night
Mostly clear, with a low around 52.
Monday
Sunny, with a high near 70.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
New Baden IL
 38.54°N 89.7°W (Elev. 453 ft)
Last Update:
1:26 am CDT Sep 29, 2026
Forecast Valid:
2am CDT Sep 29, 2026-6pm CDT Oct 5, 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