National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Southern Illinois Airport (KMDH)

Lat: 37.78°NLon: 89.25°WElev: 400ft.

A Few Clouds

64°F

18°C

Humidity 32%
Wind Speed Calm
Barometer 30.04 in
Dewpoint 34°F (1°C)
Visibility 10.00 mi
Last update 28 Feb 11:49 am CST
Extended Forecast for

3 Miles NE Jacob IL

  • This Afternoon

    This Afternoon: A 20 percent chance of showers after 3pm. Partly sunny, with a high near 67. Southeast wind around 6 mph becoming south southwest.

    High: 67 °F

    Slight Chance
    Showers

  • Tonight

    Tonight: A 20 percent chance of showers before 10pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 34. South wind 5 to 10 mph becoming north after midnight.

    Low: 34 °F

    Slight Chance
    Showers then
    Mostly Clear

  • Sunday

    Sunday: Increasing clouds, with a high near 48. Northeast wind 9 to 11 mph, with gusts as high as 18 mph.

    High: 48 °F

    Increasing
    Clouds

  • Sunday Night

    Sunday Night: A chance of rain showers before midnight, then rain and snow showers likely between midnight and 3am, then rain showers likely after 3am. Cloudy, with a low around 33. East northeast wind around 9 mph. Chance of precipitation is 70%.

    Low: 33 °F

    Chance
    Showers then
    Rain/Snow
    Likely

  • Monday

    Monday: A 50 percent chance of showers, mainly before noon. Cloudy, with a high near 44. East wind 7 to 9 mph.

    High: 44 °F

    Chance
    Showers then
    Slight Chance
    Showers

  • Monday Night

    Monday Night: A 50 percent chance of showers. Mostly cloudy, with a low around 39. East wind 6 to 9 mph becoming south after midnight.

    Low: 39 °F

    Chance
    Showers

  • Tuesday

    Tuesday: Showers likely and possibly a thunderstorm before noon, then a chance of showers and thunderstorms after noon. Cloudy, with a high near 65. South southwest wind 10 to 15 mph, with gusts as high as 23 mph. Chance of precipitation is 60%.

    High: 65 °F

    Showers
    Likely

  • Tuesday Night

    Tuesday Night: Showers likely, with thunderstorms also possible after midnight. Cloudy, with a low around 53. South southwest wind 7 to 10 mph.

    Low: 53 °F

    Showers
    Likely

  • Wednesday

    Wednesday: Showers likely and possibly a thunderstorm before noon, then a chance of showers and thunderstorms after noon. Cloudy, with a high near 67. South wind 7 to 10 mph, with gusts as high as 18 mph.

    High: 67 °F

    Showers
    Likely then
    Chance
    T-storms

Detailed Forecast

This Afternoon
A 20 percent chance of showers after 3pm. Partly sunny, with a high near 67. Southeast wind around 6 mph becoming south southwest.
Tonight
A 20 percent chance of showers before 10pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 34. South wind 5 to 10 mph becoming north after midnight.
Sunday
Increasing clouds, with a high near 48. Northeast wind 9 to 11 mph, with gusts as high as 18 mph.
Sunday Night
A chance of rain showers before midnight, then rain and snow showers likely between midnight and 3am, then rain showers likely after 3am. Cloudy, with a low around 33. East northeast wind around 9 mph. Chance of precipitation is 70%.
Monday
A 50 percent chance of showers, mainly before noon. Cloudy, with a high near 44. East wind 7 to 9 mph.
Monday Night
A 50 percent chance of showers. Mostly cloudy, with a low around 39. East wind 6 to 9 mph becoming south after midnight.
Tuesday
Showers likely and possibly a thunderstorm before noon, then a chance of showers and thunderstorms after noon. Cloudy, with a high near 65. South southwest wind 10 to 15 mph, with gusts as high as 23 mph. Chance of precipitation is 60%.
Tuesday Night
Showers likely, with thunderstorms also possible after midnight. Cloudy, with a low around 53. South southwest wind 7 to 10 mph.
Wednesday
Showers likely and possibly a thunderstorm before noon, then a chance of showers and thunderstorms after noon. Cloudy, with a high near 67. South wind 7 to 10 mph, with gusts as high as 18 mph.
Wednesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 53. South southwest wind around 8 mph.
Thursday
A chance of showers. Mostly sunny, with a high near 70. South southwest wind 8 to 10 mph, with gusts as high as 18 mph.
Thursday Night
A chance of showers. Mostly cloudy, with a low around 57. South wind around 7 mph.
Friday
Showers and thunderstorms likely. Mostly cloudy, with a high near 74. South southwest wind 7 to 13 mph, with gusts as high as 20 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:
10:51 am CST Feb 28, 2026
Forecast Valid:
12pm CST Feb 28, 2026-6pm CST Mar 6, 2026
 
Forecast Discussion
 
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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