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.

Partly Cloudy

63°F

17°C

Humidity 93%
Wind Speed Calm
Barometer 29.96 in (1014.3 mb)
Dewpoint 61°F (16°C)
Visibility 10.00 mi
Last update 19 Jun 3:53 am CDT
Extended Forecast for

Thebes IL

  • Juneteenth

    Juneteenth: Mostly sunny, with a high near 84. Light north wind.

    High: 84 °F

    Mostly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 65. Calm wind.

    Low: 65 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 86. Calm wind becoming south around 5 mph in the afternoon.

    High: 86 °F

    Sunny

  • Saturday Night

    Saturday Night: A 20 percent chance of showers after 1am. Partly cloudy, with a low around 69. Southeast wind around 5 mph becoming calm in the evening.

    Low: 69 °F

    Mostly Clear
    then Slight
    Chance
    Showers

  • Sunday

    Sunday: Showers likely, with thunderstorms also possible after 10am. Mostly cloudy, with a high near 87. South wind 6 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 70%.

    High: 87 °F

    Showers
    Likely

  • Sunday Night

    Sunday Night: Showers and possibly a thunderstorm. Low around 72. South southwest wind 13 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 90%.

    Low: 72 °F

    T-storms then
    Showers

  • Monday

    Monday: Showers likely and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 83. West southwest wind 9 to 11 mph becoming northwest in the afternoon. Chance of precipitation is 60%.

    High: 83 °F

    Showers
    Likely

  • Monday Night

    Monday Night: A slight chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 65. North wind 5 to 8 mph becoming calm in the evening.

    Low: 65 °F

    Slight Chance
    T-storms

  • Tuesday

    Tuesday: Mostly sunny, with a high near 82. Light north wind.

    High: 82 °F

    Mostly Sunny

Detailed Forecast

Juneteenth
Mostly sunny, with a high near 84. Light north wind.
Tonight
Partly cloudy, with a low around 65. Calm wind.
Saturday
Sunny, with a high near 86. Calm wind becoming south around 5 mph in the afternoon.
Saturday Night
A 20 percent chance of showers after 1am. Partly cloudy, with a low around 69. Southeast wind around 5 mph becoming calm in the evening.
Sunday
Showers likely, with thunderstorms also possible after 10am. Mostly cloudy, with a high near 87. South wind 6 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 70%.
Sunday Night
Showers and possibly a thunderstorm. Low around 72. South southwest wind 13 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 90%.
Monday
Showers likely and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 83. West southwest wind 9 to 11 mph becoming northwest in the afternoon. Chance of precipitation is 60%.
Monday Night
A slight chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 65. North wind 5 to 8 mph becoming calm in the evening.
Tuesday
Mostly sunny, with a high near 82. Light north wind.
Tuesday Night
Partly cloudy, with a low around 65. Light north wind.
Wednesday
Sunny, with a high near 84. Light west northwest wind.
Wednesday Night
A slight chance of showers. Partly cloudy, with a low around 66. Calm wind.
Thursday
A chance of showers and thunderstorms. Mostly sunny, with a high near 85. Calm wind becoming south around 5 mph in the afternoon.
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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:
1:26 am CDT Jun 19, 2026
Forecast Valid:
4am CDT Jun 19, 2026-6pm CDT Jun 25, 2026
 
Forecast Discussion
 
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Additional Resources

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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