Hazardous Weather Conditions
Current conditions at
Southern Illinois Airport (KMDH)
Lat: 37.78°NLon: 89.25°WElev: 400ft.
Fair
36°F
2°C
| Humidity | 79% |
| Wind Speed | NW 7 mph |
| Barometer | 30.30 in (1026.1 mb) |
| Dewpoint | 30°F (-1°C) |
| Visibility | 10.00 mi |
| Wind Chill | 30°F (-1°C) |
| Last update | 12 Mar 3:52 am CDT |
Extended Forecast for
2 Miles N Saint Johns IL
Today
High: 53 °F
Sunny
Tonight
Low: 42 °F
Mostly Clear
then Partly
Cloudy and
BreezyFriday
High: 63 °F
Mostly Sunny
Friday Night
Low: 37 °F
Partly Cloudy
Saturday
High: 65 °F
Mostly Sunny
Saturday Night
Low: 53 °F
Mostly Cloudy
Sunday
High: 70 °F
Breezy.
Chance
Showers then
Showers
LikelySunday Night
Low: 25 °F
Rain/Snow
Likely and
BreezyMonday
High: 36 °F
Mostly Sunny
and Breezy
Detailed Forecast
Today
Sunny, with a high near 53. West northwest wind 3 to 8 mph.
Tonight
Mostly clear, with a low around 42. Breezy, with a south wind 9 to 14 mph increasing to 17 to 22 mph after midnight. Winds could gust as high as 31 mph.
Friday
Mostly sunny, with a high near 63. West wind 14 to 17 mph, with gusts as high as 25 mph.
Friday Night
Partly cloudy, with a low around 37. Northwest wind 5 to 7 mph becoming east northeast after midnight.
Saturday
Mostly sunny, with a high near 65. East northeast wind 8 to 11 mph becoming south southeast in the afternoon.
Saturday Night
Mostly cloudy, with a low around 53. Southeast wind 8 to 11 mph, with gusts as high as 21 mph.
Sunday
A chance of showers, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 70. Breezy, with a south wind 14 to 22 mph, with gusts as high as 33 mph. Chance of precipitation is 70%.
Sunday Night
Rain and snow showers likely, mainly before 1am. Some thunder is also possible. Mostly cloudy, with a low around 25. Breezy, with a west northwest wind 23 to 26 mph, with gusts as high as 36 mph.
Monday
Mostly sunny, with a high near 36. Breezy, with a west northwest wind 18 to 21 mph, with gusts as high as 30 mph.
Monday Night
Mostly clear, with a low around 16. Northwest wind 7 to 15 mph, with gusts as high as 21 mph.
Tuesday
Partly sunny, with a high near 41. North northwest wind 6 to 8 mph becoming southwest in the afternoon.
Tuesday Night
Mostly cloudy, with a low around 30. South southeast wind 5 to 7 mph.
Wednesday
Mostly cloudy, with a high near 57. South wind 8 to 11 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
3:41 am CDT Mar 12, 2026
4am CDT Mar 12, 2026-6pm CDT Mar 18, 2026
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