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

57°F

14°C

Humidity 42%
Wind Speed NW 12 mph
Barometer 30.29 in (1025.8 mb)
Dewpoint 34°F (1°C)
Visibility 10.00 mi
Last update 5 Apr 1:52 pm CDT
Extended Forecast for

3 Miles NE Jacob IL

  • This Afternoon

    This Afternoon: Sunny, with a high near 60. North northwest wind 8 to 10 mph.

    High: 60 °F

    Sunny

  • Tonight

    Tonight: Clear, with a low around 39. North northwest wind around 6 mph becoming calm in the evening.

    Low: 39 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 66. Calm wind becoming north northwest 5 to 8 mph in the morning.

    High: 66 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 40. North northeast wind around 6 mph.

    Low: 40 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 58. East northeast wind around 8 mph.

    High: 58 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 40. East wind 5 to 7 mph.

    Low: 40 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 74. South wind 5 to 11 mph, with gusts as high as 18 mph.

    High: 74 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 54. South wind around 8 mph.

    Low: 54 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 72. South wind 8 to 11 mph, with gusts as high as 20 mph.

    High: 72 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 60. North northwest wind 8 to 10 mph.
Tonight
Clear, with a low around 39. North northwest wind around 6 mph becoming calm in the evening.
Monday
Sunny, with a high near 66. Calm wind becoming north northwest 5 to 8 mph in the morning.
Monday Night
Partly cloudy, with a low around 40. North northeast wind around 6 mph.
Tuesday
Partly sunny, with a high near 58. East northeast wind around 8 mph.
Tuesday Night
Partly cloudy, with a low around 40. East wind 5 to 7 mph.
Wednesday
Mostly sunny, with a high near 74. South wind 5 to 11 mph, with gusts as high as 18 mph.
Wednesday Night
Partly cloudy, with a low around 54. South wind around 8 mph.
Thursday
Mostly sunny, with a high near 72. South wind 8 to 11 mph, with gusts as high as 20 mph.
Thursday Night
A slight chance of showers after 1am. Partly cloudy, with a low around 57. South wind around 7 mph.
Friday
A slight chance of showers and thunderstorms. Partly sunny, with a high near 78. South southwest wind 5 to 9 mph.
Friday Night
A slight chance of showers and thunderstorms. Mostly cloudy, with a low around 58. Southeast wind around 6 mph.
Saturday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 81. South wind 5 to 8 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:
1:22 pm CDT Apr 5, 2026
Forecast Valid:
2pm CDT Apr 5, 2026-6pm CDT Apr 11, 2026
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation