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.

Fair

41°F

5°C

Humidity 41%
Wind Speed S 12 mph
Barometer 29.97 in (1015.1 mb)
Dewpoint 19°F (-7°C)
Visibility 10.00 mi
Wind Chill34°F (1°C)
Last update 5 Dec 2:52 pm CST
Extended Forecast for

4 Miles SE Pinckneyville IL

  • This Afternoon

    This Afternoon: Sunny, with a high near 42. South wind around 8 mph.

    High: 42 °F

    Sunny

  • Tonight

    Tonight: Increasing clouds, with a steady temperature around 31. South southwest wind 3 to 7 mph.

    Low: 31 °F

    Increasing
    Clouds

  • Saturday

    Saturday: Partly sunny, with a high near 43. Light and variable wind.

    High: 43 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Cloudy, with a low around 33. Calm wind becoming south around 5 mph after midnight.

    Low: 33 °F

    Cloudy

  • Sunday

    Sunday: A slight chance of rain showers before 5pm, then a slight chance of snow showers. Mostly cloudy, with a high near 45. South wind 5 to 11 mph becoming north in the afternoon. Chance of precipitation is 20%.

    High: 45 °F

    Slight Chance
    Showers then
    Slight Chance
    Rain/Snow

  • Sunday Night

    Sunday Night: A 20 percent chance of snow showers. Mostly cloudy, with a low around 21. North wind 7 to 11 mph.

    Low: 21 °F

    Slight Chance
    Snow Showers

  • Monday

    Monday: Mostly sunny, with a high near 35. North wind 3 to 6 mph.

    High: 35 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 23. Calm wind becoming south southwest 5 to 9 mph after midnight.

    Low: 23 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 48. South southwest wind 10 to 14 mph, with gusts as high as 20 mph.

    High: 48 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 42. South wind around 8 mph.
Tonight
Increasing clouds, with a steady temperature around 31. South southwest wind 3 to 7 mph.
Saturday
Partly sunny, with a high near 43. Light and variable wind.
Saturday Night
Cloudy, with a low around 33. Calm wind becoming south around 5 mph after midnight.
Sunday
A slight chance of rain showers before 5pm, then a slight chance of snow showers. Mostly cloudy, with a high near 45. South wind 5 to 11 mph becoming north in the afternoon. Chance of precipitation is 20%.
Sunday Night
A 20 percent chance of snow showers. Mostly cloudy, with a low around 21. North wind 7 to 11 mph.
Monday
Mostly sunny, with a high near 35. North wind 3 to 6 mph.
Monday Night
Partly cloudy, with a low around 23. Calm wind becoming south southwest 5 to 9 mph after midnight.
Tuesday
Mostly sunny, with a high near 48. South southwest wind 10 to 14 mph, with gusts as high as 20 mph.
Tuesday Night
Mostly cloudy, with a low around 38. South southwest wind 11 to 14 mph, with gusts as high as 20 mph.
Wednesday
A chance of showers. Partly sunny, with a high near 47. West wind 10 to 14 mph, with gusts as high as 20 mph.
Wednesday Night
Mostly cloudy, with a low around 27. West northwest wind 7 to 9 mph.
Thursday
Mostly cloudy, with a high near 41. North wind 7 to 9 mph becoming south southwest in the afternoon.
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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:
3:07 pm CST Dec 5, 2025
Forecast Valid:
3pm CST Dec 5, 2025-6pm CST Dec 11, 2025
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation