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.

Fog/Mist

54°F

12°C

Humidity 100%
Wind Speed Calm
Barometer 29.96 in (1014.4 mb)
Dewpoint 54°F (12°C)
Visibility 4.00 mi
Last update 13 Oct 12:52 am CDT
Extended Forecast for

4 Miles SE Pinckneyville IL

  • Overnight

    Overnight: Mostly clear, with a low around 52. Calm wind.

    Low: 52 °F

    Mostly Clear

  • Columbus Day

    Columbus Day: Sunny, with a high near 82. Light southeast wind.

    High: 82 °F

    Sunny

  • Monday Night

    Monday Night: Patchy fog after 5am. Otherwise, mostly clear, with a low around 56. Light east wind.

    Low: 56 °F

    Mostly Clear
    then Patchy
    Fog

  • Tuesday

    Tuesday: Patchy fog before 7am. Otherwise, sunny, with a high near 83. Calm wind becoming east northeast around 6 mph in the afternoon.

    High: 83 °F

    Patchy Fog
    then Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 55. Light east wind.

    Low: 55 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 82. Calm wind becoming east northeast around 6 mph in the afternoon.

    High: 82 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 56. East northeast wind around 5 mph becoming calm in the evening.

    Low: 56 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 81. Light east wind becoming east southeast 5 to 9 mph in the morning.

    High: 81 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 56. East southeast wind 5 to 7 mph.

    Low: 56 °F

    Partly Cloudy

Detailed Forecast

Overnight
Mostly clear, with a low around 52. Calm wind.
Columbus Day
Sunny, with a high near 82. Light southeast wind.
Monday Night
Patchy fog after 5am. Otherwise, mostly clear, with a low around 56. Light east wind.
Tuesday
Patchy fog before 7am. Otherwise, sunny, with a high near 83. Calm wind becoming east northeast around 6 mph in the afternoon.
Tuesday Night
Mostly clear, with a low around 55. Light east wind.
Wednesday
Sunny, with a high near 82. Calm wind becoming east northeast around 6 mph in the afternoon.
Wednesday Night
Mostly clear, with a low around 56. East northeast wind around 5 mph becoming calm in the evening.
Thursday
Sunny, with a high near 81. Light east wind becoming east southeast 5 to 9 mph in the morning.
Thursday Night
Partly cloudy, with a low around 56. East southeast wind 5 to 7 mph.
Friday
Mostly sunny, with a high near 84. South wind 5 to 11 mph.
Friday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 62. South wind 7 to 9 mph.
Saturday
A chance of showers and thunderstorms. Partly sunny, with a high near 80. Southwest wind 9 to 14 mph, with gusts as high as 18 mph.
Saturday Night
A chance of showers and thunderstorms. Some of the storms could produce heavy rainfall. Partly cloudy, with a low around 52. South southwest wind 7 to 9 mph.
Sunday
A chance of showers. Mostly sunny, with a high near 72. West northwest wind 8 to 13 mph, with gusts as high as 18 mph.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles SE Pinckneyville IL
 38.04°N 89.33°W
Last Update:
1:31 am CDT Oct 13, 2025
Forecast Valid:
1am CDT Oct 13, 2025-6pm CDT Oct 19, 2025
 
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Additional Resources

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