Current conditions at
Southern Illinois Airport (KMDH)
Lat: 37.78°NLon: 89.25°WElev: 400ft.
Partly Cloudy and Breezy
39°F
4°C
| Humidity | 76% |
| Wind Speed | S 21 G 28 mph |
| Barometer | 30.00 in (1016.4 mb) |
| Dewpoint | 32°F (0°C) |
| Visibility | 8.00 mi |
| Wind Chill | 29°F (-2°C) |
| Last update | 9 Dec 10:52 am CST |
Extended Forecast for
2 Miles N Saint Johns IL
Today
High: 47 °F
Partly Sunny
Tonight
Low: 40 °F⇑
Mostly Cloudy
and Breezy
then CloudyWednesday
High: 48 °F⇓
Mostly Cloudy
and BreezyWednesday Night
Low: 27 °F
Mostly Cloudy
Thursday
High: 41 °F
Mostly Cloudy
Thursday Night
Low: 31 °F
Mostly Cloudy
Friday
High: 46 °F
Partly Sunny
Friday Night
Low: 20 °F
Mostly Cloudy
Saturday
High: 32 °F
Partly Sunny
Detailed Forecast
Today
Partly sunny, with a high near 47. South southwest wind 11 to 17 mph, with gusts as high as 32 mph.
Tonight
Mostly cloudy, with a temperature rising to around 49 by 3am. Breezy, with a southwest wind 15 to 20 mph, with gusts as high as 38 mph.
Wednesday
Mostly cloudy, with a temperature falling to around 37 by 5pm. Breezy, with a northwest wind 19 to 24 mph decreasing to 13 to 18 mph in the afternoon. Winds could gust as high as 38 mph.
Wednesday Night
Mostly cloudy, with a low around 27. Northwest wind 5 to 10 mph becoming light west northwest after midnight.
Thursday
Mostly cloudy, with a high near 41. Light and variable wind becoming west southwest 5 to 7 mph in the morning.
Thursday Night
Mostly cloudy, with a low around 31. East southeast wind 5 to 7 mph.
Friday
Partly sunny, with a high near 46. Southeast wind 7 to 10 mph becoming northwest in the afternoon.
Friday Night
Mostly cloudy, with a low around 20. North northwest wind 7 to 9 mph.
Saturday
Partly sunny, with a high near 32. North wind 6 to 8 mph.
Saturday Night
Mostly cloudy, with a low around 11. North wind around 7 mph.
Sunday
Mostly sunny, with a high near 25. North wind 6 to 8 mph.
Sunday Night
Partly cloudy, with a low around 15. North northeast wind around 6 mph becoming southeast after midnight.
Monday
A chance of rain and snow showers. Partly sunny, with a high near 36. South wind 6 to 9 mph.
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
2 Miles N Saint Johns IL
38.06°N 89.24°W
38.06°N 89.24°W
10:31 am CST Dec 9, 2025
11am CST Dec 9, 2025-6pm CST Dec 15, 2025
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