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

72°F

22°C

Humidity 94%
Wind Speed NE 3 mph
Barometer 30.01 in (1015.7 mb)
Dewpoint 70°F (21°C)
Visibility 9.00 mi
Last update 6 Jul 6:53 am CDT
Extended Forecast for

Sauget IL

  • Today

    Today: A 20 percent chance of showers and thunderstorms after 9am. Increasing clouds, with a high near 88. Calm wind becoming north 5 to 7 mph in the morning.

    High: 88 °F

    Slight Chance
    T-storms

  • Tonight

    Tonight: A 20 percent chance of showers and thunderstorms before 9pm. Increasing clouds, with a low around 71. North wind 5 to 8 mph becoming calm in the evening.

    Low: 71 °F

    Slight Chance
    T-storms then
    Mostly Cloudy

  • Tuesday

    Tuesday: A 30 percent chance of showers and thunderstorms, mainly after 3pm. Increasing clouds, with a high near 89. Northeast wind 3 to 7 mph.

    High: 89 °F

    Mostly Sunny
    then Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A 30 percent chance of showers and thunderstorms, mainly before 7pm. Mostly clear, with a low around 71. Northeast wind around 5 mph becoming calm in the evening.

    Low: 71 °F

    Chance
    T-storms then
    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 92. Light and variable wind.

    High: 92 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 73.

    Low: 73 °F

    Mostly Clear

  • Thursday

    Thursday: A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 95.

    High: 95 °F

    Sunny then
    Slight Chance
    T-storms

  • Thursday Night

    Thursday Night: Showers and thunderstorms likely, mainly after 1am. Partly cloudy, with a low around 76. Chance of precipitation is 60%.

    Low: 76 °F

    Slight Chance
    T-storms then
    T-storms
    Likely

  • Friday

    Friday: A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 92.

    High: 92 °F

    Chance
    T-storms

Detailed Forecast

Today
A 20 percent chance of showers and thunderstorms after 9am. Increasing clouds, with a high near 88. Calm wind becoming north 5 to 7 mph in the morning.
Tonight
A 20 percent chance of showers and thunderstorms before 9pm. Increasing clouds, with a low around 71. North wind 5 to 8 mph becoming calm in the evening.
Tuesday
A 30 percent chance of showers and thunderstorms, mainly after 3pm. Increasing clouds, with a high near 89. Northeast wind 3 to 7 mph.
Tuesday Night
A 30 percent chance of showers and thunderstorms, mainly before 7pm. Mostly clear, with a low around 71. Northeast wind around 5 mph becoming calm in the evening.
Wednesday
Sunny, with a high near 92. Light and variable wind.
Wednesday Night
Mostly clear, with a low around 73.
Thursday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 95.
Thursday Night
Showers and thunderstorms likely, mainly after 1am. Partly cloudy, with a low around 76. Chance of precipitation is 60%.
Friday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 92.
Friday Night
Showers and thunderstorms likely, mainly before 1am. Mostly cloudy, with a low around 73. Chance of precipitation is 60%.
Saturday
A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 90.
Saturday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 72.
Sunday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 91.
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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:
5:52 am CDT Jul 6, 2026
Forecast Valid:
6am CDT Jul 6, 2026-6pm CDT Jul 12, 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