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

50°F

10°C

Humidity 50%
Wind Speed N 6 mph
Barometer 30.08 in (1019.0 mb)
Dewpoint 32°F (0°C)
Visibility 10.00 mi
Wind Chill48°F (9°C)
Last update 9 Feb 1:52 pm CST
Extended Forecast for

3 Miles NE Jacob IL

  • This Afternoon

    This Afternoon: Sunny, with a high near 54. Light south southeast wind.

    High: 54 °F

    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 41. South wind 5 to 8 mph.

    Low: 41 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 65. South wind around 8 mph becoming north in the afternoon.

    High: 65 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around 31. North wind 5 to 8 mph.

    Low: 31 °F

    Decreasing
    Clouds

  • Wednesday

    Wednesday: Sunny, with a high near 49. North wind 3 to 6 mph.

    High: 49 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 29. Calm wind.

    Low: 29 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly cloudy, with a high near 47. Calm wind becoming east southeast around 6 mph in the afternoon.

    High: 47 °F

    Mostly Cloudy

  • Thursday Night

    Thursday Night: A slight chance of showers. Mostly cloudy, with a low around 32. East wind around 5 mph becoming calm in the evening.

    Low: 32 °F

    Slight Chance
    Showers

  • Friday

    Friday: A slight chance of showers after noon. Mostly cloudy, with a high near 49. Calm wind becoming east around 6 mph in the morning.

    High: 49 °F

    Partly Sunny
    then Slight
    Chance
    Showers

Detailed Forecast

This Afternoon
Sunny, with a high near 54. Light south southeast wind.
Tonight
Partly cloudy, with a low around 41. South wind 5 to 8 mph.
Tuesday
Mostly sunny, with a high near 65. South wind around 8 mph becoming north in the afternoon.
Tuesday Night
Mostly cloudy, then gradually becoming mostly clear, with a low around 31. North wind 5 to 8 mph.
Wednesday
Sunny, with a high near 49. North wind 3 to 6 mph.
Wednesday Night
Mostly cloudy, with a low around 29. Calm wind.
Thursday
Mostly cloudy, with a high near 47. Calm wind becoming east southeast around 6 mph in the afternoon.
Thursday Night
A slight chance of showers. Mostly cloudy, with a low around 32. East wind around 5 mph becoming calm in the evening.
Friday
A slight chance of showers after noon. Mostly cloudy, with a high near 49. Calm wind becoming east around 6 mph in the morning.
Friday Night
A chance of showers, mainly after midnight. Mostly cloudy, with a low around 36. East wind around 6 mph.
Saturday
Showers likely. Cloudy, with a high near 50. East wind 6 to 11 mph.
Saturday Night
Showers. Mostly cloudy, with a low around 39. East wind around 10 mph becoming north after midnight. Winds could gust as high as 18 mph.
Sunday
A chance of showers. Partly sunny, with a high near 52. North northwest wind 9 to 14 mph, with gusts as high as 21 mph.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NE Jacob IL
 37.78°N 89.51°W
Last Update:
1:17 pm CST Feb 9, 2026
Forecast Valid:
2pm CST Feb 9, 2026-6pm CST Feb 15, 2026
 
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Additional Resources

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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