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Hazardous Weather Conditions

Current conditions at

Southern Illinois Airport (KMDH)

Lat: 37.78°NLon: 89.25°WElev: 400ft.

Mostly Cloudy

41°F

5°C

Humidity 82%
Wind Speed SW 15 G 31 mph
Barometer 29.70 in (1006.0 mb)
Dewpoint 36°F (2°C)
Visibility 10.00 mi
Wind Chill33°F (1°C)
Last update 10 Dec 12:52 am CST
Extended Forecast for

2 Miles N Saint Johns IL

  • Overnight

    Overnight: A 20 percent chance of showers before 3am. Cloudy, with a low around 40. Southwest wind 15 to 17 mph, with gusts as high as 30 mph.

    Low: 40 °F

    Slight Chance
    Showers

  • Wednesday

    Wednesday: Mostly cloudy, with a temperature falling to around 37 by 5pm. Breezy, with a northwest wind 13 to 21 mph, with gusts as high as 40 mph.

    High: 45 °F⇓

    Mostly Cloudy
    and Breezy

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 25. Northwest wind 5 to 10 mph becoming light after midnight.

    Low: 25 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly cloudy, with a high near 39. Light and variable wind becoming west southwest around 6 mph in the morning.

    High: 39 °F

    Mostly Cloudy

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 34. South southeast wind around 7 mph.

    Low: 34 °F

    Mostly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 47. Southwest wind 7 to 10 mph becoming north northwest in the afternoon.

    High: 47 °F

    Partly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 23. North northwest wind 6 to 8 mph.

    Low: 23 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly cloudy, with a high near 37. North wind around 7 mph.

    High: 37 °F

    Mostly Cloudy

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 12. North wind 7 to 9 mph.

    Low: 12 °F

    Mostly Cloudy

Detailed Forecast

Overnight
A 20 percent chance of showers before 3am. Cloudy, with a low around 40. Southwest wind 15 to 17 mph, with gusts as high as 30 mph.
Wednesday
Mostly cloudy, with a temperature falling to around 37 by 5pm. Breezy, with a northwest wind 13 to 21 mph, with gusts as high as 40 mph.
Wednesday Night
Mostly cloudy, with a low around 25. Northwest wind 5 to 10 mph becoming light after midnight.
Thursday
Mostly cloudy, with a high near 39. Light and variable wind becoming west southwest around 6 mph in the morning.
Thursday Night
Mostly cloudy, with a low around 34. South southeast wind around 7 mph.
Friday
Partly sunny, with a high near 47. Southwest wind 7 to 10 mph becoming north northwest in the afternoon.
Friday Night
Mostly cloudy, with a low around 23. North northwest wind 6 to 8 mph.
Saturday
Mostly cloudy, with a high near 37. North wind around 7 mph.
Saturday Night
Mostly cloudy, with a low around 12. North wind 7 to 9 mph.
Sunday
Sunny, with a high near 26. North wind 6 to 9 mph.
Sunday Night
Partly cloudy, with a low around 14. North northeast wind around 5 mph becoming calm.
Monday
A slight chance of showers. Mostly sunny, with a high near 37. South wind 5 to 8 mph.
Monday Night
A slight chance of rain or freezing rain. Mostly cloudy, with a low around 25. South wind around 6 mph.
Tuesday
A slight chance of showers. Partly sunny, with a high near 41. South wind 5 to 7 mph.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles N Saint Johns IL
 38.06°N 89.24°W
Last Update:
7:52 pm CST Dec 9, 2025
Forecast Valid:
1am CST Dec 10, 2025-6pm CST Dec 16, 2025
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation