Hazardous Weather Conditions
Current conditions at
Southern Illinois Airport (KMDH)
Lat: 37.78°NLon: 89.25°WElev: 400ft.
Partly Cloudy
81°F
27°C
| Humidity | 61% |
| Wind Speed | S 14 G 24 mph |
| Barometer | 29.99 in (1015.2 mb) |
| Dewpoint | 66°F (19°C) |
| Visibility | 10.00 mi |
| Heat Index | 83°F (28°C) |
| Last update | 17 May 10:52 am CDT |
Extended Forecast for
2 Miles N Saint Johns IL
Today
High: 88 °F
Sunny
Tonight
Low: 70 °F
Mostly Clear
Monday
High: 88 °F
Slight Chance
T-storms then
Chance
T-stormsMonday Night
Low: 71 °F
Slight Chance
T-stormsTuesday
High: 87 °F
Showers
Likely then
ShowersTuesday Night
Low: 62 °F
Showers
Wednesday
High: 73 °F
Slight Chance
ShowersWednesday Night
Low: 54 °F
Slight Chance
ShowersThursday
High: 73 °F
Slight Chance
Showers
Detailed Forecast
Today
Sunny, with a high near 88. South wind 13 to 16 mph, with gusts as high as 24 mph.
Tonight
Mostly clear, with a low around 70. South wind 11 to 14 mph, with gusts as high as 23 mph.
Monday
A 50 percent chance of showers and thunderstorms, mainly after noon. Partly sunny, with a high near 88. South wind 14 to 18 mph, with gusts as high as 26 mph.
Monday Night
A 20 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 71. South wind around 14 mph, with gusts as high as 22 mph.
Tuesday
Showers and possibly a thunderstorm. High near 87. South wind 14 to 17 mph, with gusts as high as 25 mph. Chance of precipitation is 90%.
Tuesday Night
Showers and possibly a thunderstorm. Low around 62. West southwest wind 5 to 8 mph becoming north northwest after midnight. Chance of precipitation is 90%.
Wednesday
A 20 percent chance of showers. Mostly cloudy, with a high near 73. North wind around 9 mph.
Wednesday Night
A slight chance of showers. Mostly cloudy, with a low around 54. North northeast wind 6 to 9 mph.
Thursday
A slight chance of showers before 1pm. Partly sunny, with a high near 73. Northeast wind around 9 mph.
Thursday Night
A slight chance of showers after 1am. Mostly cloudy, with a low around 56. East northeast wind 5 to 8 mph.
Friday
A chance of showers and thunderstorms. Mostly cloudy, with a high near 77. East northeast wind around 6 mph.
Friday Night
A chance of showers. Mostly cloudy, with a low around 60. Northeast wind 3 to 6 mph.
Saturday
A chance of showers and thunderstorms. Partly sunny, with a high near 81. Light and variable wind becoming east around 6 mph in the morning.
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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
11:31 am CDT May 17, 2026
11am CDT May 17, 2026-6pm CDT May 23, 2026
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