National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

St. Louis Downtown Airport (KCPS)

Lat: 38.56°NLon: 90.15°WElev: 410ft.

Mostly Cloudy

64°F

18°C

Humidity 52%
Wind Speed SE 10 mph
Barometer 29.95 in (1013.9 mb)
Dewpoint 46°F (8°C)
Visibility 10.00 mi
Last update 15 May 8:53 am CDT
Extended Forecast for

New Baden IL

  • Today

    Today: A 20 percent chance of showers and thunderstorms before 10am. Partly sunny, with a high near 83. South wind 9 to 15 mph, with gusts as high as 23 mph.

    High: 83 °F

    Slight Chance
    T-storms then
    Mostly Sunny

  • Tonight

    Tonight: A 20 percent chance of showers and thunderstorms after 4am. Mostly cloudy, with a low around 67. South wind 9 to 11 mph.

    Low: 67 °F

    Mostly Cloudy
    then Slight
    Chance
    T-storms

  • Saturday

    Saturday: Showers and thunderstorms likely, mainly before 2pm. Cloudy, then gradually becoming mostly sunny, with a high near 83. South wind 8 to 10 mph. Chance of precipitation is 70%.

    High: 83 °F

    Chance
    T-storms then
    Showers
    Likely

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 65. South wind 7 to 9 mph.

    Low: 65 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 89. Breezy, with a south wind 11 to 21 mph.

    High: 89 °F

    Sunny then
    Sunny and
    Breezy

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 70.

    Low: 70 °F

    Mostly Clear

  • Monday

    Monday: A 40 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 89. Breezy.

    High: 89 °F

    Breezy.
    Mostly Sunny
    then Chance
    T-storms

  • Monday Night

    Monday Night: A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 72.

    Low: 72 °F

    Chance
    Showers then
    Chance
    T-storms

  • Tuesday

    Tuesday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 86. Breezy. Chance of precipitation is 70%.

    High: 86 °F

    Breezy.
    Chance
    T-storms then
    Showers
    Likely

Detailed Forecast

Today
A 20 percent chance of showers and thunderstorms before 10am. Partly sunny, with a high near 83. South wind 9 to 15 mph, with gusts as high as 23 mph.
Tonight
A 20 percent chance of showers and thunderstorms after 4am. Mostly cloudy, with a low around 67. South wind 9 to 11 mph.
Saturday
Showers and thunderstorms likely, mainly before 2pm. Cloudy, then gradually becoming mostly sunny, with a high near 83. South wind 8 to 10 mph. Chance of precipitation is 70%.
Saturday Night
Partly cloudy, with a low around 65. South wind 7 to 9 mph.
Sunday
Sunny, with a high near 89. Breezy, with a south wind 11 to 21 mph.
Sunday Night
Mostly clear, with a low around 70.
Monday
A 40 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 89. Breezy.
Monday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 72.
Tuesday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 86. Breezy. Chance of precipitation is 70%.
Tuesday Night
Showers likely, mainly before 1am. Mostly cloudy, with a low around 62. Chance of precipitation is 60%.
Wednesday
A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 76.
Wednesday Night
A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 57.
Thursday
A 20 percent chance of showers and thunderstorms. Partly sunny, with a high near 75.
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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:
8:26 am CDT May 15, 2026
Forecast Valid:
9am CDT May 15, 2026-6pm CDT May 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