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

Hazardous Weather Conditions

Current conditions at

Southern Illinois Airport (KMDH)

Lat: 37.78°NLon: 89.25°WElev: 400ft.

Fair

70°F

21°C

Humidity 41%
Wind Speed NW 15 G 33 mph
Barometer 29.75 in (1007.2 mb)
Dewpoint 45°F (7°C)
Visibility 10.00 mi
Last update 11 Nov 4:52 pm CST
Extended Forecast for

3 Miles SSE Altenburg MO

  • Tonight

    Tonight: Mostly clear, with a low around 42. North northwest wind 7 to 14 mph, with gusts as high as 18 mph.

    Low: 42 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 54. North northwest wind 6 to 15 mph, with gusts as high as 23 mph.

    High: 54 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 32. North northwest wind 8 to 11 mph.

    Low: 32 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 46. North northwest wind 7 to 13 mph, with gusts as high as 18 mph.

    High: 46 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 27. North wind around 5 mph becoming calm in the evening.

    Low: 27 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 49. Calm wind.

    High: 49 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 27. Calm wind.

    Low: 27 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 52. Calm wind.

    High: 52 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 31. Calm wind.

    Low: 31 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 42. North northwest wind 7 to 14 mph, with gusts as high as 18 mph.
Thursday
Mostly sunny, with a high near 54. North northwest wind 6 to 15 mph, with gusts as high as 23 mph.
Thursday Night
Mostly clear, with a low around 32. North northwest wind 8 to 11 mph.
Friday
Sunny, with a high near 46. North northwest wind 7 to 13 mph, with gusts as high as 18 mph.
Friday Night
Mostly clear, with a low around 27. North wind around 5 mph becoming calm in the evening.
Saturday
Sunny, with a high near 49. Calm wind.
Saturday Night
Mostly clear, with a low around 27. Calm wind.
Sunday
Mostly sunny, with a high near 52. Calm wind.
Sunday Night
Partly cloudy, with a low around 31. Calm wind.
Monday
Mostly sunny, with a high near 52. Calm wind becoming east northeast around 5 mph.
Monday Night
Mostly clear, with a low around 30. Calm wind.
Tuesday
Sunny, with a high near 55. Light east northeast wind.
Tuesday Night
Clear, with a low around 31. Calm wind.
Wednesday
Sunny, with a high near 60. Calm wind becoming southeast around 5 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SSE Altenburg MO
 37.6°N 89.57°W
Last Update:
1:21 pm CST Nov 11, 2026
Forecast Valid:
5pm CST Nov 11, 2026-6pm CST Nov 18, 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