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.

Partly Cloudy

24°F

-4°C

Humidity 68%
Wind Speed N 9 mph
Barometer 30.22 in (1023.8 mb)
Dewpoint 15°F (-9°C)
Visibility 10.00 mi
Wind Chill14°F (-10°C)
Last update 19 Jan 5:52 am CST
Extended Forecast for

3 Miles NE Jacob IL

  • M.L.King Day

    M.L.King Day: Mostly sunny, with a high near 23. Northwest wind 5 to 15 mph, with gusts as high as 25 mph.

    High: 23 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 12. Calm wind.

    Low: 12 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 38. Light south southwest wind increasing to 5 to 10 mph in the morning.

    High: 38 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Increasing clouds, with a low around 28. South wind 9 to 14 mph, with gusts as high as 23 mph.

    Low: 28 °F

    Increasing
    Clouds

  • Wednesday

    Wednesday: Mostly sunny, with a high near 48. South southwest wind 6 to 13 mph, with gusts as high as 22 mph.

    High: 48 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 25. West southwest wind around 6 mph becoming northwest after midnight.

    Low: 25 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 38. North northwest wind 3 to 6 mph.

    High: 38 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 21. Calm wind becoming north around 6 mph after midnight.

    Low: 21 °F

    Partly Cloudy

  • Friday

    Friday: Mostly cloudy, with a high near 30. North wind 6 to 11 mph, with gusts as high as 18 mph.

    High: 30 °F

    Mostly Cloudy

Detailed Forecast

M.L.King Day
Mostly sunny, with a high near 23. Northwest wind 5 to 15 mph, with gusts as high as 25 mph.
Tonight
Mostly clear, with a low around 12. Calm wind.
Tuesday
Sunny, with a high near 38. Light south southwest wind increasing to 5 to 10 mph in the morning.
Tuesday Night
Increasing clouds, with a low around 28. South wind 9 to 14 mph, with gusts as high as 23 mph.
Wednesday
Mostly sunny, with a high near 48. South southwest wind 6 to 13 mph, with gusts as high as 22 mph.
Wednesday Night
Partly cloudy, with a low around 25. West southwest wind around 6 mph becoming northwest after midnight.
Thursday
Mostly sunny, with a high near 38. North northwest wind 3 to 6 mph.
Thursday Night
Partly cloudy, with a low around 21. Calm wind becoming north around 6 mph after midnight.
Friday
Mostly cloudy, with a high near 30. North wind 6 to 11 mph, with gusts as high as 18 mph.
Friday Night
A slight chance of snow showers. Mostly cloudy, with a low around 5. North wind around 10 mph, with gusts as high as 18 mph.
Saturday
A chance of snow showers. Mostly cloudy, with a high near 17. North northeast wind 9 to 11 mph.
Saturday Night
A chance of snow showers. Mostly cloudy, with a low around 8. North northeast wind 6 to 8 mph.
Sunday
Mostly sunny, with a high near 25. North wind around 7 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NE Jacob IL
 37.78°N 89.51°W
Last Update:
5:41 am CST Jan 19, 2026
Forecast Valid:
6am CST Jan 19, 2026-6pm CST Jan 25, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation