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

64°F

18°C

Humidity 22%
Wind Speed SE 5 mph
Barometer 30.20 in (1022.7 mb)
Dewpoint 24°F (-4°C)
Visibility 10.00 mi
Last update 24 Mar 3:52 pm CDT
Extended Forecast for

3 Miles NE Jacob IL

  • This Afternoon

    This Afternoon: Sunny, with a high near 67. Calm wind.

    High: 67 °F

    Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 44. East wind around 6 mph becoming calm in the evening.

    Low: 44 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 75. Light south southeast wind becoming south southwest 6 to 11 mph in the morning. Winds could gust as high as 18 mph.

    High: 75 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 61. South wind around 10 mph, with gusts as high as 20 mph.

    Low: 61 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 86. South southwest wind 10 to 16 mph, with gusts as high as 25 mph.

    High: 86 °F

    Sunny

  • Thursday Night

    Thursday Night: A 50 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 45. South southwest wind 10 to 14 mph becoming north after midnight. Winds could gust as high as 23 mph.

    Low: 45 °F

    Partly Cloudy
    then Chance
    T-storms

  • Friday

    Friday: Showers likely, mainly before 1pm. Mostly cloudy, with a high near 53. North wind around 14 mph, with gusts as high as 23 mph. Chance of precipitation is 60%.

    High: 53 °F

    Showers
    Likely

  • Friday Night

    Friday Night: Mostly clear, with a low around 32. North wind 5 to 10 mph, with gusts as high as 18 mph.

    Low: 32 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 58. Light and variable wind becoming east around 6 mph in the morning.

    High: 58 °F

    Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 67. Calm wind.
Tonight
Mostly cloudy, with a low around 44. East wind around 6 mph becoming calm in the evening.
Wednesday
Mostly sunny, with a high near 75. Light south southeast wind becoming south southwest 6 to 11 mph in the morning. Winds could gust as high as 18 mph.
Wednesday Night
Mostly clear, with a low around 61. South wind around 10 mph, with gusts as high as 20 mph.
Thursday
Sunny, with a high near 86. South southwest wind 10 to 16 mph, with gusts as high as 25 mph.
Thursday Night
A 50 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 45. South southwest wind 10 to 14 mph becoming north after midnight. Winds could gust as high as 23 mph.
Friday
Showers likely, mainly before 1pm. Mostly cloudy, with a high near 53. North wind around 14 mph, with gusts as high as 23 mph. Chance of precipitation is 60%.
Friday Night
Mostly clear, with a low around 32. North wind 5 to 10 mph, with gusts as high as 18 mph.
Saturday
Sunny, with a high near 58. Light and variable wind becoming east around 6 mph in the morning.
Saturday Night
Partly cloudy, with a low around 38. Light southeast wind.
Sunday
Partly sunny, with a high near 64. South wind 3 to 8 mph.
Sunday Night
Mostly cloudy, with a low around 50. South wind around 8 mph.
Monday
Mostly sunny, with a high near 78. South southwest wind 8 to 13 mph, with gusts as high as 20 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:
4:31 pm CDT Mar 24, 2026
Forecast Valid:
4pm CDT Mar 24, 2026-6pm CDT Mar 30, 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