Hazardous Weather Conditions
Current conditions at
Southern Illinois Airport (KMDH)
Lat: 37.78°NLon: 89.25°WElev: 400ft.
Fair
24°F
-4°C
| Humidity | 71% |
| Wind Speed | S 7 mph |
| Barometer | 30.18 in (1022.4 mb) |
| Dewpoint | 16°F (-9°C) |
| Visibility | 10.00 mi |
| Wind Chill | 16°F (-9°C) |
| Last update | 24 Feb 6:52 am CST |
Extended Forecast for
2 Miles N Saint Johns IL
Today

High: 49 °F
Partly Sunny
and BreezyTonight

Low: 37 °F
Mostly Cloudy
Wednesday

High: 54 °F
Mostly Cloudy
Wednesday Night
Low: 38 °F
Slight Chance
Showers then
Chance
ShowersThursday
High: 52 °F
Chance
Showers then
Mostly SunnyThursday Night

Low: 31 °F
Mostly Clear
Friday

High: 61 °F
Sunny
Friday Night

Low: 40 °F
Mostly Clear
Saturday

High: 67 °F
Sunny
Detailed Forecast
Today
Partly sunny, with a high near 49. Breezy, with a south wind 10 to 15 mph increasing to 16 to 21 mph in the afternoon. Winds could gust as high as 33 mph.
Tonight
Mostly cloudy, with a low around 37. South southwest wind 12 to 17 mph decreasing to 5 to 10 mph after midnight. Winds could gust as high as 29 mph.
Wednesday
Mostly cloudy, with a high near 54. Light and variable wind becoming north northwest around 5 mph.
Wednesday Night
A 50 percent chance of showers, mainly after midnight. Mostly cloudy, with a low around 38. East wind 3 to 8 mph.
Thursday
A 30 percent chance of showers before noon. Partly sunny, with a high near 52. East northeast wind 6 to 9 mph becoming north in the afternoon.
Thursday Night
Mostly clear, with a low around 31. North wind around 5 mph becoming calm in the evening.
Friday
Sunny, with a high near 61. Calm wind becoming south southwest 5 to 9 mph in the morning.
Friday Night
Mostly clear, with a low around 40. South southwest wind 6 to 8 mph.
Saturday
Sunny, with a high near 67. South southwest wind 6 to 10 mph.
Saturday Night
Partly cloudy, with a low around 33. South wind around 10 mph becoming north after midnight.
Sunday
A slight chance of showers. Partly sunny, with a high near 48. Northeast wind around 11 mph, with gusts as high as 18 mph.
Sunday Night
A chance of rain and snow showers. Mostly cloudy, with a low around 33. East northeast wind around 10 mph.
Monday
A chance of showers. Partly sunny, with a high near 52. East southeast wind around 10 mph, with gusts as high as 18 mph.
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ABOUT THIS FORECAST
Point Forecast:
2 Miles N Saint Johns IL
38.06°N 89.24°W
38.06°N 89.24°W
5:26 am CST Feb 24, 2026
7am CST Feb 24, 2026-6pm CST Mar 2, 2026



