Current conditions at

Southern Illinois Airport (KMDH)

Lat: 37.78°NLon: 89.25°WElev: 400ft.

Fair

39°F

4°C

Humidity 67%
Wind Speed S 10 mph
Barometer 30.10 in (1019.4 mb)
Dewpoint 29°F (-2°C)
Visibility 10.00 mi
Wind Chill32°F (0°C)
Last update 13 Jan 2:52 am CST
Extended Forecast for

3 Miles NE Jacob IL

  • Overnight

    Overnight: Mostly clear, with a low around 39. South southwest wind 7 to 9 mph.

    Low: 39 °F

    Mostly Clear

  • Tuesday

    Tuesday: Increasing clouds, with a high near 62. Southwest wind 9 to 15 mph, with gusts as high as 25 mph.

    High: 62 °F

    Increasing
    Clouds

  • Tuesday Night

    Tuesday Night: A 40 percent chance of showers, mainly before 1am.  Cloudy, with a low around 40. Southwest wind 5 to 8 mph becoming northwest after midnight.

    Low: 40 °F

    Chance
    Showers

  • Wednesday

    Wednesday: Partly sunny, with a high near 46. North northwest wind 7 to 12 mph increasing to 13 to 18 mph in the afternoon. Winds could gust as high as 28 mph.

    High: 46 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 18. North northwest wind 7 to 16 mph, with gusts as high as 25 mph.

    Low: 18 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 33. North northwest wind around 6 mph becoming south southwest in the afternoon.

    High: 33 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 25. South wind 6 to 11 mph, with gusts as high as 20 mph.

    Low: 25 °F

    Mostly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 46. West wind 10 to 17 mph, with gusts as high as 25 mph.

    High: 46 °F

    Partly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 23. West wind around 10 mph, with gusts as high as 18 mph.

    Low: 23 °F

    Partly Cloudy

Detailed Forecast

Overnight
Mostly clear, with a low around 39. South southwest wind 7 to 9 mph.
Tuesday
Increasing clouds, with a high near 62. Southwest wind 9 to 15 mph, with gusts as high as 25 mph.
Tuesday Night
A 40 percent chance of showers, mainly before 1am. Cloudy, with a low around 40. Southwest wind 5 to 8 mph becoming northwest after midnight.
Wednesday
Partly sunny, with a high near 46. North northwest wind 7 to 12 mph increasing to 13 to 18 mph in the afternoon. Winds could gust as high as 28 mph.
Wednesday Night
Mostly clear, with a low around 18. North northwest wind 7 to 16 mph, with gusts as high as 25 mph.
Thursday
Sunny, with a high near 33. North northwest wind around 6 mph becoming south southwest in the afternoon.
Thursday Night
Mostly cloudy, with a low around 25. South wind 6 to 11 mph, with gusts as high as 20 mph.
Friday
Partly sunny, with a high near 46. West wind 10 to 17 mph, with gusts as high as 25 mph.
Friday Night
Partly cloudy, with a low around 23. West wind around 10 mph, with gusts as high as 18 mph.
Saturday
Partly sunny, with a high near 34. West northwest wind 9 to 14 mph, with gusts as high as 22 mph.
Saturday Night
Partly cloudy, with a low around 11. West northwest wind around 9 mph.
Sunday
Sunny, with a high near 28. West northwest wind 8 to 11 mph, with gusts as high as 18 mph.
Sunday Night
Mostly clear, with a low around 13. West wind around 7 mph.
M.L.King Day
Sunny, with a high near 36. West wind 6 to 10 mph.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NE Jacob IL
 37.78°N 89.51°W
3:16 am CST Jan 13, 2026
3am CST Jan 13, 2026-6pm CST Jan 19, 2026
 
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Additional Resources

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