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Hazardous Weather Conditions

Current conditions at

Southern Illinois Airport (KMDH)

Lat: 37.78°NLon: 89.25°WElev: 400ft.

N/A

Humidity NA
Wind Speed NA
Barometer NA
Dewpoint N/A
Visibility NA
Last update *** Not a current observation ***
Extended Forecast for

5 Miles NNE Jacob IL

  • Today

    Today: A slight chance of showers before 9am, then a slight chance of showers and thunderstorms after 2pm. Cloudy, then gradually becoming mostly sunny, with a high near 79. North wind 11 to 13 mph, with gusts as high as 22 mph. Chance of precipitation is 20%.

    High: 79 °F

    Slight Chance
    Showers then
    Slight Chance
    T-storms

  • Tonight

    Tonight: Mostly clear, with a low around 65. North wind 3 to 8 mph.

    Low: 65 °F

    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 83. North wind 3 to 5 mph.

    High: 83 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Clear, with a low around 64. Calm wind.

    Low: 64 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 86. Calm wind.

    High: 86 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Clear, with a low around 65. Calm wind.

    Low: 65 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 89. Calm wind.

    High: 89 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 69. Light south southeast wind.

    Low: 69 °F

    Mostly Clear

  • Thursday

    Thursday: A slight chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 88. South southwest wind 3 to 5 mph.

    High: 88 °F

    Slight Chance
    T-storms

Detailed Forecast

Today
A slight chance of showers before 9am, then a slight chance of showers and thunderstorms after 2pm. Cloudy, then gradually becoming mostly sunny, with a high near 79. North wind 11 to 13 mph, with gusts as high as 22 mph. Chance of precipitation is 20%.
Tonight
Mostly clear, with a low around 65. North wind 3 to 8 mph.
Monday
Mostly sunny, with a high near 83. North wind 3 to 5 mph.
Monday Night
Clear, with a low around 64. Calm wind.
Tuesday
Sunny, with a high near 86. Calm wind.
Tuesday Night
Clear, with a low around 65. Calm wind.
Wednesday
Sunny, with a high near 89. Calm wind.
Wednesday Night
Mostly clear, with a low around 69. Light south southeast wind.
Thursday
A slight chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 88. South southwest wind 3 to 5 mph.
Thursday Night
A chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 71. South wind 3 to 5 mph.
Friday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 88. Light south southwest wind.
Friday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 70. Calm wind.
Saturday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 90. Calm wind becoming south southwest around 5 mph in the afternoon.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles NNE Jacob IL
 37.82°N 89.51°W
Last Update:
3:46 am CDT Aug 2, 2026
Forecast Valid:
6am CDT Aug 2, 2026-6pm CDT Aug 8, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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