Hazardous Weather Conditions
Current conditions at
Southern Illinois Airport (KMDH)
Lat: 37.78°NLon: 89.25°WElev: 400ft.
Fair
25°F
-4°C
| Humidity | 48% |
| Wind Speed | N 8 mph |
| Barometer | 30.11 in (1020.2 mb) |
| Dewpoint | 8°F (-13°C) |
| Visibility | 10.00 mi |
| Wind Chill | 16°F (-9°C) |
| Last update | 15 Jan 10:52 am CST |
Extended Forecast for
2 Miles N Saint Johns IL
Today

High: 33 °F
Sunny
Tonight

Low: 27 °F⇑
Chance Snow
ShowersFriday

High: 45 °F
Mostly Cloudy
Friday Night

Low: 23 °F
Chance Snow
ShowersSaturday

High: 28 °F
Partly Sunny
Saturday Night

Low: 11 °F
Mostly Clear
Sunday

High: 27 °F
Sunny
Sunday Night

Low: 16 °F
Mostly Clear
M.L.King Day

High: 26 °F
Mostly Sunny
Detailed Forecast
Today
Sunny, with a high near 33. Northwest wind 5 to 8 mph becoming south southwest in the afternoon.
Tonight
A 40 percent chance of snow showers, mainly before 1am. Mostly cloudy, with a temperature falling to near 27 by 11pm, then rising to around 33 during the remainder of the night. Light south wind becoming southwest 8 to 13 mph in the evening. Winds could gust as high as 22 mph.
Friday
Mostly cloudy, with a high near 45. West wind 9 to 14 mph, with gusts as high as 20 mph.
Friday Night
A 30 percent chance of snow showers, mainly after midnight. Mostly cloudy, with a low around 23. West wind 8 to 11 mph, with gusts as high as 18 mph.
Saturday
Partly sunny, with a high near 28. West northwest wind 10 to 15 mph, with gusts as high as 22 mph.
Saturday Night
Mostly clear, with a low around 11. Northwest wind 6 to 9 mph.
Sunday
Sunny, with a high near 27. West northwest wind 7 to 10 mph becoming southwest in the afternoon.
Sunday Night
Mostly clear, with a low around 16. South southwest wind 7 to 10 mph becoming west northwest after midnight. Winds could gust as high as 18 mph.
M.L.King Day
Mostly sunny, with a high near 26. Northwest wind 9 to 14 mph, with gusts as high as 21 mph.
Monday Night
Mostly clear, with a low around 11. Northwest wind 3 to 7 mph.
Tuesday
Sunny, with a high near 30. West wind 5 to 10 mph.
Tuesday Night
Mostly clear, with a low around 19. South wind 8 to 10 mph.
Wednesday
Mostly sunny, with a high near 43. Southwest wind 8 to 10 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
6:41 am CST Jan 15, 2026
11am CST Jan 15, 2026-6pm CST Jan 21, 2026



