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

81°F

27°C

Humidity 69%
Wind Speed Vrbl 5 mph
Barometer 29.92 in (1012.6 mb)
Dewpoint 70°F (21°C)
Visibility 10.00 mi
Heat Index84°F (29°C)
Last update 13 Oct 10:53 pm CDT
Extended Forecast for

New Baden IL

  • Tonight

    Tonight: A 30 percent chance of showers and thunderstorms, mainly after 3am. Increasing clouds, with a low around 72. Southwest wind 5 to 8 mph.

    Low: 72 °F

    Chance
    T-storms

  • Wednesday

    Wednesday: Showers and thunderstorms before 11am, then showers likely and possibly a thunderstorm between 11am and 1pm, then a chance of showers and thunderstorms after 1pm. High near 79. Northwest wind around 5 mph becoming east in the morning. Chance of precipitation is 90%.

    High: 79 °F

    T-storms then
    Showers
    Likely

  • Wednesday Night

    Wednesday Night: A 30 percent chance of showers and thunderstorms, mainly after 11pm. Cloudy, then gradually becoming partly cloudy, with a low around 66. Light and variable wind becoming northeast around 6 mph in the evening.

    Low: 66 °F

    Chance
    Showers then
    Chance
    T-storms

  • Thursday

    Thursday: Showers likely and possibly a thunderstorm before noon, then a chance of showers and thunderstorms after noon. Cloudy through mid morning, then gradual clearing, with a high near 84. East wind 6 to 10 mph becoming southwest in the afternoon. Chance of precipitation is 60%.

    High: 84 °F

    Showers
    Likely then
    Chance
    T-storms

  • Thursday Night

    Thursday Night: Showers likely and possibly a thunderstorm before 7pm, then a chance of showers and thunderstorms between 7pm and 1am, then a slight chance of showers after 1am. Mostly cloudy, with a low around 50. West wind 7 to 12 mph becoming northwest 13 to 18 mph after midnight. Winds could gust as high as 28 mph. Chance of precipitation is 60%.

    Low: 50 °F

    Showers
    Likely

  • Friday

    Friday: Mostly sunny, with a high near 61. Breezy.

    High: 61 °F

    Mostly Sunny
    and Breezy

  • Friday Night

    Friday Night: Mostly clear, with a low around 37.

    Low: 37 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 63.

    High: 63 °F

    Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 37.

    Low: 37 °F

    Clear

Detailed Forecast

Tonight
A 30 percent chance of showers and thunderstorms, mainly after 3am. Increasing clouds, with a low around 72. Southwest wind 5 to 8 mph.
Wednesday
Showers and thunderstorms before 11am, then showers likely and possibly a thunderstorm between 11am and 1pm, then a chance of showers and thunderstorms after 1pm. High near 79. Northwest wind around 5 mph becoming east in the morning. Chance of precipitation is 90%.
Wednesday Night
A 30 percent chance of showers and thunderstorms, mainly after 11pm. Cloudy, then gradually becoming partly cloudy, with a low around 66. Light and variable wind becoming northeast around 6 mph in the evening.
Thursday
Showers likely and possibly a thunderstorm before noon, then a chance of showers and thunderstorms after noon. Cloudy through mid morning, then gradual clearing, with a high near 84. East wind 6 to 10 mph becoming southwest in the afternoon. Chance of precipitation is 60%.
Thursday Night
Showers likely and possibly a thunderstorm before 7pm, then a chance of showers and thunderstorms between 7pm and 1am, then a slight chance of showers after 1am. Mostly cloudy, with a low around 50. West wind 7 to 12 mph becoming northwest 13 to 18 mph after midnight. Winds could gust as high as 28 mph. Chance of precipitation is 60%.
Friday
Mostly sunny, with a high near 61. Breezy.
Friday Night
Mostly clear, with a low around 37.
Saturday
Sunny, with a high near 63.
Saturday Night
Clear, with a low around 37.
Sunday
Sunny, with a high near 71.
Sunday Night
Partly cloudy, with a low around 46.
Monday
Mostly sunny, with a high near 74.
Monday Night
Partly cloudy, with a low around 49.
Tuesday
Mostly sunny, with a high near 79.
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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:
11:11 pm CDT Oct 13, 2026
Forecast Valid:
11pm CDT Oct 13, 2026-6pm CDT Oct 20, 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