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

63°F

17°C

Humidity 76%
Wind Speed Vrbl 5 mph
Barometer 30.35 in (1027.6 mb)
Dewpoint 55°F (13°C)
Visibility 7.00 mi
Last update 11 Apr 10:52 am CDT
Extended Forecast for

3 Miles NE Jacob IL

  • Today

    Today: Isolated showers and thunderstorms after 1pm. Mostly sunny, with a high near 76. South southeast wind 3 to 5 mph. Chance of precipitation is 10%.

    High: 76 °F

    Isolated
    T-storms

  • Tonight

    Tonight: Partly cloudy, with a low around 59. Southeast wind 3 to 6 mph.

    Low: 59 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 82. South southwest wind 6 to 11 mph increasing to 13 to 18 mph in the afternoon. Winds could gust as high as 26 mph.

    High: 82 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: A slight chance of showers, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 66. South wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 50%.

    Low: 66 °F

    Slight Chance
    Showers then
    Chance
    T-storms

  • Monday

    Monday: A chance of showers and thunderstorms before 7am, then a chance of showers between 7am and 1pm, then a slight chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 82. South southwest wind 13 to 17 mph, with gusts as high as 25 mph. Chance of precipitation is 30%.

    High: 82 °F

    Chance
    Showers

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 67. South southwest wind 10 to 14 mph, with gusts as high as 23 mph.

    Low: 67 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 86. South southwest wind 10 to 17 mph, with gusts as high as 25 mph.

    High: 86 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 69. South southwest wind 10 to 14 mph, with gusts as high as 22 mph.

    Low: 69 °F

    Chance
    T-storms

  • Wednesday

    Wednesday: A chance of showers and thunderstorms. Partly sunny, with a high near 84. South southwest wind 9 to 14 mph, with gusts as high as 22 mph.

    High: 84 °F

    Chance
    Showers then
    Chance
    T-storms

Detailed Forecast

Today
Isolated showers and thunderstorms after 1pm. Mostly sunny, with a high near 76. South southeast wind 3 to 5 mph. Chance of precipitation is 10%.
Tonight
Partly cloudy, with a low around 59. Southeast wind 3 to 6 mph.
Sunday
Mostly sunny, with a high near 82. South southwest wind 6 to 11 mph increasing to 13 to 18 mph in the afternoon. Winds could gust as high as 26 mph.
Sunday Night
A slight chance of showers, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 66. South wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 50%.
Monday
A chance of showers and thunderstorms before 7am, then a chance of showers between 7am and 1pm, then a slight chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 82. South southwest wind 13 to 17 mph, with gusts as high as 25 mph. Chance of precipitation is 30%.
Monday Night
Mostly cloudy, with a low around 67. South southwest wind 10 to 14 mph, with gusts as high as 23 mph.
Tuesday
Partly sunny, with a high near 86. South southwest wind 10 to 17 mph, with gusts as high as 25 mph.
Tuesday Night
A chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 69. South southwest wind 10 to 14 mph, with gusts as high as 22 mph.
Wednesday
A chance of showers and thunderstorms. Partly sunny, with a high near 84. South southwest wind 9 to 14 mph, with gusts as high as 22 mph.
Wednesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 66. South southwest wind 7 to 10 mph.
Thursday
A chance of showers and thunderstorms. Partly sunny, with a high near 82. South southwest wind 7 to 13 mph, with gusts as high as 20 mph.
Thursday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 62. South southwest wind 5 to 8 mph.
Friday
A chance of showers and thunderstorms. Mostly sunny, with a high near 86. South southwest wind 6 to 10 mph, with gusts as high as 18 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:
10:13 am CDT Apr 11, 2026
Forecast Valid:
11am CDT Apr 11, 2026-6pm CDT Apr 17, 2026
 
Forecast Discussion
 
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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