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

44°F

7°C

Humidity 79%
Wind Speed SW 5 mph
Barometer 30.24 in (1024.2 mb)
Dewpoint 38°F (3°C)
Visibility 10.00 mi
Wind Chill41°F (5°C)
Last update 19 Apr 12:53 am CDT
Extended Forecast for

Thebes IL

  • Overnight

    Overnight: Clear, with a low around 40. Calm wind.

    Low: 40 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 69. Calm wind becoming west 5 to 9 mph in the morning.

    High: 69 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 44. West wind around 5 mph becoming light and variable.

    Low: 44 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 69. Light and variable wind.

    High: 69 °F

    Sunny

  • Monday Night

    Monday Night: 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 23 mph.

    High: 78 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Clear, with a low around 55. Southwest wind 6 to 10 mph.

    Low: 55 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 79. Southwest wind 5 to 10 mph.

    High: 79 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 59. South wind around 6 mph.

    Low: 59 °F

    Mostly Clear

Detailed Forecast

Overnight
Clear, with a low around 40. Calm wind.
Sunday
Sunny, with a high near 69. Calm wind becoming west 5 to 9 mph in the morning.
Sunday Night
Mostly clear, with a low around 44. West wind around 5 mph becoming light and variable.
Monday
Sunny, with a high near 69. Light and variable wind.
Monday Night
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 23 mph.
Tuesday Night
Clear, with a low around 55. Southwest wind 6 to 10 mph.
Wednesday
Sunny, with a high near 79. Southwest wind 5 to 10 mph.
Wednesday Night
Mostly clear, with a low around 59. South wind around 6 mph.
Thursday
Mostly sunny, with a high near 83. South wind 6 to 14 mph, with gusts as high as 23 mph.
Thursday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 65. South wind around 11 mph, with gusts as high as 20 mph.
Friday
Showers and thunderstorms likely. Partly sunny, with a high near 80. South southwest wind 11 to 14 mph, with gusts as high as 23 mph.
Friday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 54. Southwest wind 8 to 10 mph becoming north northwest after midnight.
Saturday
A chance of showers and thunderstorms. Mostly sunny, with a high near 73. North northwest wind 8 to 10 mph, with gusts as high as 18 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Thebes IL
 37.24°N 89.45°W
Last Update:
12:16 am CDT Apr 19, 2026
Forecast Valid:
12am CDT Apr 19, 2026-6pm CDT Apr 25, 2026
 
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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