Current conditions at
Southern Illinois Airport (KMDH)
Lat: 37.78°NLon: 89.25°WElev: 400ft.
Fair
43°F
6°C
| Humidity | 86% |
| Wind Speed | Calm |
| Barometer | 30.30 in (1026.2 mb) |
| Dewpoint | 39°F (4°C) |
| Visibility | 10.00 mi |
| Last update | 7 Apr 1:52 am CDT |
Extended Forecast for
2 Miles N Saint Johns IL
Overnight
Low: 39 °F
Mostly Cloudy
Tuesday
High: 56 °F
Mostly Sunny
Tuesday Night
Low: 38 °F
Partly Cloudy
Wednesday
High: 72 °F
Mostly Sunny
Wednesday Night
Low: 52 °F
Mostly Clear
Thursday
High: 75 °F
Sunny
Thursday Night
Low: 54 °F
Mostly Clear
Friday
High: 76 °F
Mostly Sunny
then Chance
ShowersFriday Night
Low: 57 °F
Slight Chance
T-storms then
Chance
Showers
Detailed Forecast
Overnight
Mostly cloudy, with a low around 39. North northeast wind 5 to 7 mph.
Tuesday
Mostly sunny, with a high near 56. East northeast wind 9 to 11 mph, with gusts as high as 18 mph.
Tuesday Night
Partly cloudy, with a low around 38. East wind 6 to 8 mph.
Wednesday
Mostly sunny, with a high near 72. South wind 6 to 11 mph, with gusts as high as 18 mph.
Wednesday Night
Mostly clear, with a low around 52. South wind around 9 mph.
Thursday
Sunny, with a high near 75. South southwest wind 9 to 11 mph, with gusts as high as 18 mph.
Thursday Night
Mostly clear, with a low around 54. South wind around 7 mph.
Friday
A chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 76. South southwest wind 7 to 10 mph.
Friday Night
A chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 57. North northwest wind around 5 mph becoming light and variable in the evening.
Saturday
A slight chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 78. East wind 5 to 7 mph becoming south southeast in the afternoon.
Saturday Night
Partly cloudy, with a low around 59. East southeast wind around 7 mph.
Sunday
Mostly sunny, with a high near 82. South wind 7 to 16 mph, with gusts as high as 24 mph.
Sunday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 65. South wind around 14 mph, with gusts as high as 24 mph.
Monday
A chance of showers and thunderstorms. Partly sunny, with a high near 82. South southwest wind 14 to 18 mph, with gusts as high as 26 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
1:26 am CDT Apr 7, 2026
2am CDT Apr 7, 2026-6pm CDT Apr 13, 2026
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