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

27°F

-3°C

Humidity 96%
Wind Speed Calm
Barometer 29.99 in (1015.9 mb)
Dewpoint 26°F (-3°C)
Visibility 7.00 mi
Last update 1 Jan 6:52 am CST
Extended Forecast for

4 Miles SE Pinckneyville IL

  • New Year's Day

    New Year's Day: Mostly sunny, with a high near 40. Calm wind becoming northeast around 6 mph.

    High: 40 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 30. Light north northeast wind.

    Low: 30 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly cloudy, with a high near 42. Calm wind becoming east northeast around 6 mph in the morning.

    High: 42 °F

    Mostly Cloudy

  • Friday Night

    Friday Night: Cloudy, with a low around 29. Northeast wind around 6 mph.

    Low: 29 °F

    Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 41. North northeast wind 5 to 7 mph.

    High: 41 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 25. Light north northwest wind.

    Low: 25 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 43. Calm wind becoming southeast around 5 mph.

    High: 43 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 32. South wind 3 to 8 mph.

    Low: 32 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 55. South southwest wind 7 to 10 mph, with gusts as high as 18 mph.

    High: 55 °F

    Sunny

Detailed Forecast

New Year's Day
Mostly sunny, with a high near 40. Calm wind becoming northeast around 6 mph.
Tonight
Mostly cloudy, with a low around 30. Light north northeast wind.
Friday
Mostly cloudy, with a high near 42. Calm wind becoming east northeast around 6 mph in the morning.
Friday Night
Cloudy, with a low around 29. Northeast wind around 6 mph.
Saturday
Partly sunny, with a high near 41. North northeast wind 5 to 7 mph.
Saturday Night
Mostly clear, with a low around 25. Light north northwest wind.
Sunday
Mostly sunny, with a high near 43. Calm wind becoming southeast around 5 mph.
Sunday Night
Partly cloudy, with a low around 32. South wind 3 to 8 mph.
Monday
Sunny, with a high near 55. South southwest wind 7 to 10 mph, with gusts as high as 18 mph.
Monday Night
Mostly cloudy, with a low around 41. South wind around 6 mph.
Tuesday
Mostly cloudy, with a high near 61. South southwest wind 6 to 9 mph.
Tuesday Night
Mostly cloudy, with a low around 44. West southwest wind around 6 mph.
Wednesday
Partly sunny, with a high near 58. West southwest wind 5 to 7 mph becoming south southeast in the afternoon.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles SE Pinckneyville IL
 38.04°N 89.33°W
Last Update:
5:41 am CST Jan 1, 2026
Forecast Valid:
7am CST Jan 1, 2026-6pm CST Jan 7, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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