Hazardous Weather Conditions
Current conditions at
Southern Illinois Airport (KMDH)
Lat: 37.78°NLon: 89.25°WElev: 400ft.
A Few Clouds
49°F
9°C
| Humidity | 77% |
| Wind Speed | S 7 mph |
| Barometer | 29.90 in (1012.3 mb) |
| Dewpoint | 42°F (6°C) |
| Visibility | 10.00 mi |
| Wind Chill | 46°F (8°C) |
| Last update | 8 Jan 3:52 am CST |
Extended Forecast for
2 Miles N Saint Johns IL
Today
High: 66 °F
Chance
Showers and
Areas FogTonight
Low: 56 °F
Showers and
Breezy then
Chance
ShowersFriday
High: 59 °F⇓
Increasing
CloudsFriday Night
Low: 42 °F
Chance
ShowersSaturday
High: 47 °F
Slight Chance
Showers then
Mostly SunnySaturday Night
Low: 26 °F
Partly Cloudy
Sunday
High: 34 °F
Mostly Sunny
Sunday Night
Low: 22 °F
Mostly Clear
Monday
High: 45 °F
Sunny
Detailed Forecast
Today
A chance of showers before 1pm, then a chance of showers after 3pm. Areas of fog before 9am. Otherwise, cloudy, with a high near 66. Breezy, with a south wind 8 to 13 mph increasing to 16 to 21 mph in the afternoon. Winds could gust as high as 33 mph. Chance of precipitation is 30%.
Tonight
Showers and thunderstorms before 3am, then a slight chance of showers between 3am and 4am. Low around 56. Breezy, with a south southwest wind 14 to 22 mph, with gusts as high as 36 mph. Chance of precipitation is 90%.
Friday
Increasing clouds, with a temperature falling to around 51 by 5pm. Southwest wind 6 to 10 mph becoming north in the afternoon. Winds could gust as high as 20 mph.
Friday Night
A 40 percent chance of showers, mainly after midnight. Mostly cloudy, with a low around 42. North northeast wind 3 to 7 mph.
Saturday
A 20 percent chance of showers before noon. Partly sunny, with a high near 47. West northwest wind 8 to 14 mph, with gusts as high as 22 mph.
Saturday Night
Partly cloudy, with a low around 26. West wind 9 to 13 mph, with gusts as high as 21 mph.
Sunday
Mostly sunny, with a high near 34. West northwest wind 7 to 14 mph, with gusts as high as 22 mph.
Sunday Night
Mostly clear, with a low around 22. West northwest wind around 6 mph becoming calm.
Monday
Sunny, with a high near 45. South southwest wind 6 to 11 mph, with gusts as high as 18 mph.
Monday Night
Mostly clear, with a low around 32. Southwest wind 7 to 9 mph.
Tuesday
Mostly sunny, with a high near 54. South southwest wind 7 to 11 mph.
Tuesday Night
Mostly cloudy, with a low around 37. South southwest wind 6 to 8 mph becoming west after midnight.
Wednesday
A slight chance of showers. Mostly cloudy, with a high near 45. Northwest wind 6 to 10 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
3:16 am CST Jan 8, 2026
4am CST Jan 8, 2026-6pm CST Jan 14, 2026
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