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

24°F

-4°C

Humidity 75%
Wind Speed SW 6 mph
Barometer 30.30 in (1026.5 mb)
Dewpoint 17°F (-8°C)
Visibility 10.00 mi
Wind Chill17°F (-8°C)
Last update 11 Nov 2:52 am CST
Extended Forecast for

5 Miles N Jacob IL

  • Overnight

    Overnight: Mostly clear, with a low around 23. South southwest wind around 6 mph.

    Low: 23 °F

    Mostly Clear

  • Veterans Day

    Veterans Day: Mostly cloudy, then gradually becoming sunny, with a high near 50. South southwest wind 8 to 17 mph, with gusts as high as 28 mph.

    High: 50 °F

    Decreasing
    Clouds

  • Tuesday Night

    Tuesday Night: Clear, with a low around 37. Southwest wind 6 to 14 mph, with gusts as high as 21 mph.

    Low: 37 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 62. West northwest wind 3 to 7 mph.

    High: 62 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 38. Calm wind.

    Low: 38 °F

    Mostly Clear

  • Thursday

    Thursday: Partly sunny, with a high near 63. Calm wind becoming south 5 to 7 mph in the afternoon.

    High: 63 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 48. South wind around 6 mph.

    Low: 48 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 72. South wind 6 to 10 mph.

    High: 72 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 56. South wind around 9 mph.

    Low: 56 °F

    Partly Cloudy

Detailed Forecast

Overnight
Mostly clear, with a low around 23. South southwest wind around 6 mph.
Veterans Day
Mostly cloudy, then gradually becoming sunny, with a high near 50. South southwest wind 8 to 17 mph, with gusts as high as 28 mph.
Tuesday Night
Clear, with a low around 37. Southwest wind 6 to 14 mph, with gusts as high as 21 mph.
Wednesday
Sunny, with a high near 62. West northwest wind 3 to 7 mph.
Wednesday Night
Mostly clear, with a low around 38. Calm wind.
Thursday
Partly sunny, with a high near 63. Calm wind becoming south 5 to 7 mph in the afternoon.
Thursday Night
Partly cloudy, with a low around 48. South wind around 6 mph.
Friday
Mostly sunny, with a high near 72. South wind 6 to 10 mph.
Friday Night
Partly cloudy, with a low around 56. South wind around 9 mph.
Saturday
Mostly sunny, with a high near 73. South southwest wind 9 to 14 mph, with gusts as high as 23 mph.
Saturday Night
A chance of showers. Partly cloudy, with a low around 55. Southwest wind 9 to 11 mph, with gusts as high as 20 mph.
Sunday
A chance of showers. Mostly sunny, with a high near 68. West southwest wind around 10 mph.
Sunday Night
A chance of showers. Partly cloudy, with a low around 47. West wind around 8 mph becoming south after midnight.
Monday
A chance of showers. Partly sunny, with a high near 57. South wind 7 to 10 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles N Jacob IL
 37.82°N 89.56°W
Last Update:
1:36 am CST Nov 11, 2025
Forecast Valid:
3am CST Nov 11, 2025-6pm CST Nov 17, 2025
 
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Additional Resources

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