Hazardous Weather Conditions
Current conditions at
Southern Illinois Airport (KMDH)
Lat: 37.78°NLon: 89.25°WElev: 400ft.
Fog/Mist
60°F
16°C
| Humidity | 93% |
| Wind Speed | S 12 mph |
| Barometer | 29.62 in (1002.6 mb) |
| Dewpoint | 58°F (14°C) |
| Visibility | 6.00 mi |
| Last update | 19 Feb 4:52 am CST |
Extended Forecast for
2 Miles N Saint Johns IL
Today
High: 70 °F
Showers
LikelyTonight
Low: 37 °F
Slight Chance
Showers then
Mostly ClearFriday
High: 51 °F
Sunny
Friday Night
Low: 32 °F
Partly Cloudy
Saturday
High: 47 °F
Mostly Sunny
then Slight
Chance
ShowersSaturday Night
Low: 25 °F
Mostly Clear
Sunday
High: 40 °F
Sunny
Sunday Night
Low: 20 °F
Mostly Clear
Monday
High: 36 °F
Sunny
Detailed Forecast
Today
Showers and thunderstorms likely, mainly before 3pm. Mostly cloudy, with a high near 70. South wind 7 to 17 mph, with gusts as high as 21 mph. Chance of precipitation is 70%.
Tonight
A 20 percent chance of showers before 9pm. Mostly clear, with a low around 37. West wind 10 to 14 mph, with gusts as high as 23 mph.
Friday
Sunny, with a high near 51. West wind 5 to 14 mph, with gusts as high as 23 mph.
Friday Night
Partly cloudy, with a low around 32. Calm wind becoming north around 6 mph after midnight.
Saturday
A 20 percent chance of showers after noon. Mostly sunny, with a high near 47. North northwest wind 6 to 9 mph.
Saturday Night
Mostly clear, with a low around 25. Northwest wind 8 to 10 mph, with gusts as high as 20 mph.
Sunday
Sunny, with a high near 40. Northwest wind 11 to 18 mph, with gusts as high as 26 mph.
Sunday Night
Mostly clear, with a low around 20. North northwest wind 10 to 13 mph, with gusts as high as 21 mph.
Monday
Sunny, with a high near 36. North northwest wind 7 to 14 mph, with gusts as high as 21 mph.
Monday Night
Mostly clear, with a low around 19. North northwest wind around 5 mph becoming calm in the evening.
Tuesday
Mostly sunny, with a high near 47. Light south southwest wind increasing to 8 to 13 mph in the morning. Winds could gust as high as 21 mph.
Tuesday Night
Mostly cloudy, with a low around 37. South southwest wind 11 to 14 mph, with gusts as high as 25 mph.
Wednesday
Mostly cloudy, with a high near 58. South southwest wind 13 to 17 mph, with gusts as high as 25 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
4:06 am CST Feb 19, 2026
5am CST Feb 19, 2026-6pm CST Feb 25, 2026
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