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Hazardous Weather Conditions
Current conditions at
Southern Illinois Airport (KMDH)
Lat: 37.78°NLon: 89.25°WElev: 400ft.
Fair
71°F
22°C
| Humidity | 32% |
| Wind Speed | N 12 mph |
| Barometer | 30.01 in (1015.9 mb) |
| Dewpoint | 40°F (4°C) |
| Visibility | 10.00 mi |
| Last update | 13 May 6:52 pm CDT |
Extended Forecast for
3 Miles WSW Saint Johns IL
Tonight
Low: 45 °F
Clear
Thursday
High: 74 °F
Sunny
Thursday Night
Low: 53 °F
Increasing
CloudsFriday
High: 82 °F
Chance
T-storms then
Chance
ShowersFriday Night
Low: 67 °F
Mostly Cloudy
then Chance
ShowersSaturday
High: 86 °F
Chance
T-stormsSaturday Night
Low: 65 °F
Mostly Cloudy
Sunday
High: 86 °F
Mostly Sunny
Sunday Night
Low: 69 °F
Mostly Clear
Detailed Forecast
Tonight
Clear, with a low around 45. North northwest wind 5 to 9 mph becoming calm in the evening.
Thursday
Sunny, with a high near 74. Light and variable wind.
Thursday Night
Increasing clouds, with a low around 53. Southeast wind 3 to 7 mph.
Friday
A 40 percent chance of showers and thunderstorms before 1pm. Partly sunny, with a high near 82. South wind 9 to 14 mph, with gusts as high as 23 mph.
Friday Night
A 30 percent chance of showers after 1am. Mostly cloudy, with a low around 67. South wind around 9 mph, with gusts as high as 18 mph.
Saturday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 86. South southwest wind 9 to 11 mph, with gusts as high as 18 mph.
Saturday Night
Mostly cloudy, with a low around 65. South wind 6 to 9 mph.
Sunday
Mostly sunny, with a high near 86. South wind 6 to 16 mph, with gusts as high as 23 mph.
Sunday Night
Mostly clear, with a low around 69. South wind 10 to 13 mph, with gusts as high as 22 mph.
Monday
A chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 88. Breezy, with a south wind 13 to 20 mph, with gusts as high as 26 mph.
Monday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 71. South wind 11 to 15 mph, with gusts as high as 23 mph.
Tuesday
Showers and thunderstorms likely. Partly sunny, with a high near 83. South southwest wind 11 to 14 mph, with gusts as high as 23 mph.
Tuesday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 64. West southwest wind 8 to 13 mph becoming light. Winds could gust as high as 20 mph.
Wednesday
A chance of showers. Partly sunny, with a high near 79. Northwest wind 5 to 8 mph becoming south southwest in the morning.
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
3 Miles WSW Saint Johns IL
38.01°N 89.27°W
38.01°N 89.27°W
4:16 pm CDT May 13, 2026
7pm CDT May 13, 2026-6pm CDT May 20, 2026
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