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.

Fair

76°F

24°C

Humidity 91%
Wind Speed Calm
Barometer 29.99 in (1015.1 mb)
Dewpoint 73°F (23°C)
Visibility 9.00 mi
Heat Index76°F (24°C)
Last update 19 Aug 6:53 am CDT
Extended Forecast for

New Baden IL

Heat Advisory August 19, 07:38am until August 19, 08:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory August 19, 07:38am until August 19, 08:00pm

    NOW until 8:00pm Tue

    Heat Advisory

  • Today

    High: 94 °F

    Chance
    T-storms

  • Tonight

    Tonight: A chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 11pm. Partly cloudy, with a low around 71. North wind 5 to 7 mph. Chance of precipitation is 30%.

    Low: 71 °F

    Chance
    T-storms then
    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 86. North wind 6 to 10 mph.

    High: 86 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 65. North wind 5 to 8 mph.

    Low: 65 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 84. Northeast wind 6 to 9 mph.

    High: 84 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 64.

    Low: 64 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 87.

    High: 87 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 65.

    Low: 65 °F

    Mostly Clear

Detailed Forecast

Today
A 30 percent chance of showers and thunderstorms, mainly after 3pm. Sunny, with a high near 94. Heat index values as high as 107. Light and variable wind becoming northwest 5 to 7 mph in the morning.
Tonight
A chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 11pm. Partly cloudy, with a low around 71. North wind 5 to 7 mph. Chance of precipitation is 30%.
Wednesday
Mostly sunny, with a high near 86. North wind 6 to 10 mph.
Wednesday Night
Mostly clear, with a low around 65. North wind 5 to 8 mph.
Thursday
Mostly sunny, with a high near 84. Northeast wind 6 to 9 mph.
Thursday Night
Mostly clear, with a low around 64.
Friday
Sunny, with a high near 87.
Friday Night
Mostly clear, with a low around 65.
Saturday
Mostly sunny, with a high near 87.
Saturday Night
Mostly clear, with a low around 61.
Sunday
Sunny, with a high near 81.
Sunday Night
Mostly clear, with a low around 57.
Monday
Mostly sunny, with a high near 78.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
New Baden IL
 38.56°N 89.7°W (Elev. 476 ft)
Last Update:
5:51 am CDT Aug 19, 2025
Forecast Valid:
7am CDT Aug 19, 2025-6pm CDT Aug 25, 2025
 
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