Current conditions at

Southern Illinois Airport (KMDH)

Lat: 37.78°NLon: 89.25°WElev: 400ft.

Overcast

38°F

3°C

Humidity 57%
Wind Speed S 10 mph
Barometer 30.25 in (1024.8 mb)
Dewpoint 24°F (-4°C)
Visibility 10.00 mi
Wind Chill31°F (-1°C)
Last update 29 Nov 8:52 am CST
Extended Forecast for

2 Miles N Saint Johns IL

  • Today

    Today: Snow showers, possibly mixed with sleet before 11am, then rain and snow showers between 11am and noon, then rain showers after noon.  High near 40. Breezy, with a south wind 8 to 13 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 32 mph.  Chance of precipitation is 100%. Total daytime snow and sleet accumulation of less than one inch possible.

    High: 40 °F

    Wintry Mix
    then Showers
    and Breezy

  • Tonight

    Tonight: A 50 percent chance of showers, mainly before 11pm.  Cloudy, with a low around 25. South wind 14 to 16 mph becoming west northwest after midnight. Winds could gust as high as 30 mph.

    Low: 25 °F

    Chance
    Showers then
    Mostly Cloudy

  • Sunday

    Sunday: Mostly cloudy, with a high near 31. West northwest wind 10 to 17 mph, with gusts as high as 25 mph.

    High: 31 °F

    Mostly Cloudy

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 22. North northwest wind 5 to 9 mph becoming light and variable  after midnight.

    Low: 22 °F

    Mostly Cloudy

  • Monday

    Monday: A 20 percent chance of snow showers after noon.  Mostly cloudy, with a high near 34. East northeast wind 3 to 6 mph.

    High: 34 °F

    Mostly Cloudy
    then Slight
    Chance Snow
    Showers

  • Monday Night

    Monday Night: Snow showers.  Low around 24. Calm wind becoming north northwest around 5 mph after midnight.  Chance of precipitation is 80%.

    Low: 24 °F

    Snow Showers

  • Tuesday

    Tuesday: Partly sunny, with a high near 31. North northwest wind 3 to 8 mph.

    High: 31 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 17. Light and variable wind.

    Low: 17 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 39. Light south wind becoming south southwest 5 to 9 mph in the morning.

    High: 39 °F

    Mostly Sunny

Detailed Forecast

Today
Snow showers, possibly mixed with sleet before 11am, then rain and snow showers between 11am and noon, then rain showers after noon. High near 40. Breezy, with a south wind 8 to 13 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 32 mph. Chance of precipitation is 100%. Total daytime snow and sleet accumulation of less than one inch possible.
Tonight
A 50 percent chance of showers, mainly before 11pm. Cloudy, with a low around 25. South wind 14 to 16 mph becoming west northwest after midnight. Winds could gust as high as 30 mph.
Sunday
Mostly cloudy, with a high near 31. West northwest wind 10 to 17 mph, with gusts as high as 25 mph.
Sunday Night
Mostly cloudy, with a low around 22. North northwest wind 5 to 9 mph becoming light and variable after midnight.
Monday
A 20 percent chance of snow showers after noon. Mostly cloudy, with a high near 34. East northeast wind 3 to 6 mph.
Monday Night
Snow showers. Low around 24. Calm wind becoming north northwest around 5 mph after midnight. Chance of precipitation is 80%.
Tuesday
Partly sunny, with a high near 31. North northwest wind 3 to 8 mph.
Tuesday Night
Partly cloudy, with a low around 17. Light and variable wind.
Wednesday
Mostly sunny, with a high near 39. Light south wind becoming south southwest 5 to 9 mph in the morning.
Wednesday Night
Mostly cloudy, with a low around 19. Southwest wind around 7 mph becoming north northwest after midnight.
Thursday
Partly sunny, with a high near 29. North northwest wind 5 to 7 mph becoming east northeast in the afternoon.
Thursday Night
Mostly cloudy, with a low around 20. Light and variable wind becoming southwest around 6 mph after midnight.
Friday
A slight chance of showers. Partly sunny, with a high near 39. West southwest wind 6 to 8 mph.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles N Saint Johns IL
 38.06°N 89.24°W
7:26 am CST Nov 29, 2025
8am CST Nov 29, 2025-6pm CST Dec 5, 2025
 
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