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Hazardous Weather Conditions

Current conditions at

Southern Illinois Airport (KMDH)

Lat: 37.78°NLon: 89.25°WElev: 400ft.

Overcast

72°F

22°C

Humidity 82%
Wind Speed S 16 G 31 mph
Barometer 29.78 in (1008.0 mb)
Dewpoint 66°F (19°C)
Visibility 10.00 mi
Last update 11 Mar 1:52 am CDT
Extended Forecast for

3 Miles S Jacob IL

  • Overnight

    Overnight: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 5am. Mostly cloudy, with a steady temperature around 72. Breezy, with a south southwest wind 18 to 20 mph, with gusts as high as 33 mph. Chance of precipitation is 60%.

    Low: 72 °F

    Showers
    Likely and
    Breezy

  • Wednesday

    Wednesday: Showers and thunderstorms before 4pm, then a chance of showers. Some of the storms could produce heavy rainfall. Temperature falling to around 51 by 5pm. Breezy, with a southwest wind 11 to 21 mph becoming north northwest in the afternoon. Winds could gust as high as 30 mph. Chance of precipitation is 90%.

    High: 69 °F⇓

    Heavy Rain
    and Breezy

  • Wednesday Night

    Wednesday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around 32. North northwest wind 9 to 17 mph, with gusts as high as 30 mph.

    Low: 32 °F

    Decreasing
    Clouds

  • Thursday

    Thursday: Sunny, with a high near 55. Northwest wind 5 to 7 mph becoming west southwest in the afternoon.

    High: 55 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 41. South wind 8 to 18 mph, with gusts as high as 24 mph.

    Low: 41 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 64. South southwest wind 10 to 14 mph, with gusts as high as 22 mph.

    High: 64 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 40. North wind 5 to 7 mph becoming east after midnight.

    Low: 40 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 69. East wind 6 to 11 mph becoming south in the afternoon. Winds could gust as high as 20 mph.

    High: 69 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 54. South wind 10 to 14 mph, with gusts as high as 24 mph.

    Low: 54 °F

    Partly Cloudy

Detailed Forecast

Overnight
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 5am. Mostly cloudy, with a steady temperature around 72. Breezy, with a south southwest wind 18 to 20 mph, with gusts as high as 33 mph. Chance of precipitation is 60%.
Wednesday
Showers and thunderstorms before 4pm, then a chance of showers. Some of the storms could produce heavy rainfall. Temperature falling to around 51 by 5pm. Breezy, with a southwest wind 11 to 21 mph becoming north northwest in the afternoon. Winds could gust as high as 30 mph. Chance of precipitation is 90%.
Wednesday Night
Mostly cloudy, then gradually becoming mostly clear, with a low around 32. North northwest wind 9 to 17 mph, with gusts as high as 30 mph.
Thursday
Sunny, with a high near 55. Northwest wind 5 to 7 mph becoming west southwest in the afternoon.
Thursday Night
Partly cloudy, with a low around 41. South wind 8 to 18 mph, with gusts as high as 24 mph.
Friday
Mostly sunny, with a high near 64. South southwest wind 10 to 14 mph, with gusts as high as 22 mph.
Friday Night
Partly cloudy, with a low around 40. North wind 5 to 7 mph becoming east after midnight.
Saturday
Sunny, with a high near 69. East wind 6 to 11 mph becoming south in the afternoon. Winds could gust as high as 20 mph.
Saturday Night
Partly cloudy, with a low around 54. South wind 10 to 14 mph, with gusts as high as 24 mph.
Sunday
A chance of showers and thunderstorms, then showers likely after 1pm. Partly sunny, with a high near 68. Breezy, with a south wind 16 to 22 mph becoming west in the afternoon. Winds could gust as high as 31 mph.
Sunday Night
A chance of rain and snow showers. Mostly cloudy, with a low around 24. Blustery, with a north northwest wind 16 to 20 mph, with gusts as high as 30 mph.
Monday
Sunny, with a high near 40. Northwest wind 13 to 15 mph, with gusts as high as 22 mph.
Monday Night
Partly cloudy, with a low around 19. North northwest wind 5 to 9 mph.
Tuesday
Partly sunny, with a high near 45. North wind 5 to 8 mph becoming south southwest in the afternoon.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles S Jacob IL
 37.71°N 89.54°W
Last Update:
1:21 am CDT Mar 11, 2026
Forecast Valid:
2am CDT Mar 11, 2026-6pm CDT Mar 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