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

Southern Illinois Airport (KMDH)

Lat: 37.78°NLon: 89.25°WElev: 400ft.

N/A

Humidity NA
Wind Speed NA
Barometer NA
Dewpoint N/A
Visibility NA
Last update *** Not a current observation ***
Extended Forecast for

3 Miles WNW Makanda IL

  • Overnight

    Overnight: Patchy fog after 5am. Otherwise, clear, with a low around 64. Calm wind.

    Low: 64 °F

    Patchy Fog

  • Sunday

    Sunday: Patchy fog before 8am. Otherwise, mostly sunny, with a high near 82. Calm wind becoming north northwest around 5 mph in the afternoon.

    High: 82 °F

    Patchy Fog
    then Mostly
    Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around 61. Calm wind.

    Low: 61 °F

    Decreasing
    Clouds

  • Monday

    Monday: Mostly sunny, with a high near 82. Calm wind.

    High: 82 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 64. Calm wind.

    Low: 64 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 85. Light east wind.

    High: 85 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 66. Calm wind.

    Low: 66 °F

    Mostly Clear

  • Wednesday

    Wednesday: A slight chance of showers after 1pm. Mostly sunny, with a high near 87. Calm wind.

    High: 87 °F

    Mostly Sunny
    then Slight
    Chance
    Showers

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 68. Calm wind.

    Low: 68 °F

    Mostly Clear

Detailed Forecast

Overnight
Patchy fog after 5am. Otherwise, clear, with a low around 64. Calm wind.
Sunday
Patchy fog before 8am. Otherwise, mostly sunny, with a high near 82. Calm wind becoming north northwest around 5 mph in the afternoon.
Sunday Night
Mostly cloudy, then gradually becoming mostly clear, with a low around 61. Calm wind.
Monday
Mostly sunny, with a high near 82. Calm wind.
Monday Night
Partly cloudy, with a low around 64. Calm wind.
Tuesday
Mostly sunny, with a high near 85. Light east wind.
Tuesday Night
Mostly clear, with a low around 66. Calm wind.
Wednesday
A slight chance of showers after 1pm. Mostly sunny, with a high near 87. Calm wind.
Wednesday Night
Mostly clear, with a low around 68. Calm wind.
Thursday
Sunny, with a high near 87. Calm wind becoming northwest 5 to 7 mph in the afternoon.
Thursday Night
Mostly clear, with a low around 66. Calm wind.
Friday
Sunny, with a high near 86. Calm wind becoming north northwest around 5 mph in the afternoon.
Friday Night
Mostly clear, with a low around 66. Calm wind.
Saturday
Sunny, with a high near 87. Light and variable wind.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles WNW Makanda IL
 37.63°N 89.29°W
Last Update:
3:01 am CDT Aug 23, 2026
Forecast Valid:
3am CDT Aug 23, 2026-6pm CDT Aug 29, 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