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.

Fog/Mist

48°F

9°C

Humidity 93%
Wind Speed Calm
Barometer 30.21 in (1023.2 mb)
Dewpoint 46°F (8°C)
Visibility 4.00 mi
Last update 19 Nov 10:53 am CST
Extended Forecast for

Sauget IL

  • Today

    Today: Cloudy, with a high near 54. Light north wind.

    High: 54 °F

    Cloudy

  • Tonight

    Tonight: A 30 percent chance of showers after 5am. Cloudy, with a low around 47. Calm wind becoming southeast around 5 mph.

    Low: 47 °F

    Cloudy then
    Chance
    Showers

  • Thursday

    Thursday: A chance of showers, with thunderstorms also possible after 3pm. Cloudy, with a high near 60. Southeast wind 5 to 8 mph. Chance of precipitation is 50%.

    High: 60 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: Showers likely and possibly a thunderstorm before 9pm, then showers likely between 9pm and midnight, then rain after midnight. Low around 54. East wind around 5 mph becoming calm in the evening. Chance of precipitation is 80%.

    Low: 54 °F

    Showers

  • Friday

    Friday: Rain, with thunderstorms also possible after 3pm. High near 63. East wind 3 to 8 mph. Chance of precipitation is 90%.

    High: 63 °F

    Rain

  • Friday Night

    Friday Night: Rain likely, mainly before midnight. Mostly cloudy, with a low around 49. Chance of precipitation is 60%.

    Low: 49 °F

    Rain Likely
    then Slight
    Chance Rain

  • Saturday

    Saturday: Mostly sunny, with a high near 62.

    High: 62 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 45.

    Low: 45 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 65.

    High: 65 °F

    Mostly Sunny

Detailed Forecast

Today
Cloudy, with a high near 54. Light north wind.
Tonight
A 30 percent chance of showers after 5am. Cloudy, with a low around 47. Calm wind becoming southeast around 5 mph.
Thursday
A chance of showers, with thunderstorms also possible after 3pm. Cloudy, with a high near 60. Southeast wind 5 to 8 mph. Chance of precipitation is 50%.
Thursday Night
Showers likely and possibly a thunderstorm before 9pm, then showers likely between 9pm and midnight, then rain after midnight. Low around 54. East wind around 5 mph becoming calm in the evening. Chance of precipitation is 80%.
Friday
Rain, with thunderstorms also possible after 3pm. High near 63. East wind 3 to 8 mph. Chance of precipitation is 90%.
Friday Night
Rain likely, mainly before midnight. Mostly cloudy, with a low around 49. Chance of precipitation is 60%.
Saturday
Mostly sunny, with a high near 62.
Saturday Night
Partly cloudy, with a low around 45.
Sunday
Mostly sunny, with a high near 65.
Sunday Night
Partly cloudy, with a low around 44.
Monday
A 20 percent chance of rain. Partly sunny, with a high near 62.
Monday Night
A 30 percent chance of rain. Mostly cloudy, with a low around 46.
Tuesday
A 40 percent chance of rain. Mostly cloudy, with a high near 57.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Sauget IL
 38.6°N 90.18°W (Elev. 404 ft)
Last Update:
11:06 am CST Nov 19, 2025
Forecast Valid:
11am CST Nov 19, 2025-6pm CST Nov 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