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

Cape Girardeau, Cape Girardeau Regional Airport (KCGI)

Lat: 37.23°NLon: 89.58°WElev: 341ft.

Fair

53°F

12°C

Humidity 96%
Wind Speed Calm
Barometer 30.13 in (1020.0 mb)
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Last update 1 Sep 5:53 am CDT
Extended Forecast for

Thebes IL

  • Labor Day

    Labor Day: Mostly sunny, with a high near 86. Northeast wind 3 to 6 mph.

    High: 86 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 63. Light north northeast wind.

    Low: 63 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A 20 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 83. Light northeast wind.

    High: 83 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A slight chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 1am. Partly cloudy, with a low around 60. Calm wind. Chance of precipitation is 20%.

    Low: 60 °F

    Slight Chance
    T-storms then
    Slight Chance
    Showers

  • Wednesday

    Wednesday: Sunny, with a high near 86. Calm wind becoming west southwest around 5 mph in the afternoon.

    High: 86 °F

    Sunny

  • Wednesday Night

    Wednesday Night: A slight chance of showers, then a chance of showers and thunderstorms after 10pm. Partly cloudy, with a low around 60. Light and variable wind becoming west northwest around 6 mph after midnight. Chance of precipitation is 40%.

    Low: 60 °F

    Slight Chance
    T-storms then
    Chance
    Showers

  • Thursday

    Thursday: A 20 percent chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 78. Northwest wind around 7 mph.

    High: 78 °F

    Slight Chance
    T-storms

  • Thursday Night

    Thursday Night: Clear, with a low around 53. Light and variable wind.

    Low: 53 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 86. Calm wind becoming west southwest 5 to 8 mph in the morning.

    High: 86 °F

    Sunny

Detailed Forecast

Labor Day
Mostly sunny, with a high near 86. Northeast wind 3 to 6 mph.
Tonight
Mostly cloudy, with a low around 63. Light north northeast wind.
Tuesday
A 20 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 83. Light northeast wind.
Tuesday Night
A slight chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 1am. Partly cloudy, with a low around 60. Calm wind. Chance of precipitation is 20%.
Wednesday
Sunny, with a high near 86. Calm wind becoming west southwest around 5 mph in the afternoon.
Wednesday Night
A slight chance of showers, then a chance of showers and thunderstorms after 10pm. Partly cloudy, with a low around 60. Light and variable wind becoming west northwest around 6 mph after midnight. Chance of precipitation is 40%.
Thursday
A 20 percent chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 78. Northwest wind around 7 mph.
Thursday Night
Clear, with a low around 53. Light and variable wind.
Friday
Sunny, with a high near 86. Calm wind becoming west southwest 5 to 8 mph in the morning.
Friday Night
Mostly clear, with a low around 53. West wind around 6 mph becoming light and variable after midnight.
Saturday
Sunny, with a high near 81. Calm wind becoming north around 6 mph in the morning.
Saturday Night
Mostly clear, with a low around 53. North wind around 5 mph becoming calm in the evening.
Sunday
Sunny, with a high near 83. Calm wind becoming north northeast around 5 mph in the afternoon.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Thebes IL
 37.22°N 89.45°W
Last Update:
4:31 am CDT Sep 1, 2025
Forecast Valid:
6am CDT Sep 1, 2025-6pm CDT Sep 7, 2025
 
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Additional Resources

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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