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

50°F

10°C

Humidity 61%
Wind Speed NE 9 mph
Barometer 30.31 in (1026.4 mb)
Dewpoint 37°F (3°C)
Visibility 10.00 mi
Wind Chill46°F (8°C)
Last update 20 Apr 7:53 am CDT
Extended Forecast for

Thebes IL

  • Today

    Today: Sunny, with a high near 70. Light and variable wind.

    High: 70 °F

    Sunny

  • Tonight

    Tonight: Clear, with a low around 50. South southeast wind 3 to 6 mph.

    Low: 50 °F

    Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 78. Southwest wind 6 to 14 mph, with gusts as high as 24 mph.

    High: 78 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 54. Southwest wind 6 to 10 mph, with gusts as high as 18 mph.

    Low: 54 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 77. Southwest wind 5 to 10 mph.

    High: 77 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 57. South wind around 6 mph.

    Low: 57 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 80. South wind 6 to 14 mph, with gusts as high as 24 mph.

    High: 80 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 64. South wind around 11 mph, with gusts as high as 21 mph.

    Low: 64 °F

    Mostly Cloudy
    then Chance
    Showers

  • Friday

    Friday: Showers and possibly a thunderstorm. Mostly cloudy, with a high near 77. South southwest wind around 11 mph, with gusts as high as 21 mph.

    High: 77 °F

    Showers

Detailed Forecast

Today
Sunny, with a high near 70. Light and variable wind.
Tonight
Clear, with a low around 50. South southeast wind 3 to 6 mph.
Tuesday
Mostly sunny, with a high near 78. Southwest wind 6 to 14 mph, with gusts as high as 24 mph.
Tuesday Night
Mostly clear, with a low around 54. Southwest wind 6 to 10 mph, with gusts as high as 18 mph.
Wednesday
Sunny, with a high near 77. Southwest wind 5 to 10 mph.
Wednesday Night
Mostly clear, with a low around 57. South wind around 6 mph.
Thursday
Mostly sunny, with a high near 80. South wind 6 to 14 mph, with gusts as high as 24 mph.
Thursday Night
A chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 64. South wind around 11 mph, with gusts as high as 21 mph.
Friday
Showers and possibly a thunderstorm. Mostly cloudy, with a high near 77. South southwest wind around 11 mph, with gusts as high as 21 mph.
Friday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 57. South southwest wind around 7 mph becoming north after midnight.
Saturday
A chance of showers and thunderstorms. Partly sunny, with a high near 76. North wind around 8 mph.
Saturday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 55. North northeast wind around 7 mph.
Sunday
A chance of showers and thunderstorms. Mostly sunny, with a high near 76. North northeast wind 6 to 8 mph.
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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:
7:36 am CDT Apr 20, 2026
Forecast Valid:
8am CDT Apr 20, 2026-6pm CDT Apr 26, 2026
 
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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