Hazardous Weather Conditions
Current conditions at
Southern Illinois Airport (KMDH)
Lat: 37.78°NLon: 89.25°WElev: 400ft.
Fair
26°F
-3°C
| Humidity | 55% |
| Wind Speed | Calm |
| Barometer | 30.35 in (1028.0 mb) |
| Dewpoint | 12°F (-11°C) |
| Visibility | 10.00 mi |
| Last update | 22 Jan 6:52 am CST |
Extended Forecast for
2 Miles N Saint Johns IL
Winter Storm Watch January 24, 12:00am until January 25, 12:00pm
Today
High: 39 °F
Mostly Sunny
Tonight
Low: 14 °F
Partly Cloudy
Friday
High: 19 °F⇓
Mostly Cloudy
Friday Night
Low: 7 °F
Mostly Cloudy
then Slight
Chance Snow
ShowersSaturday
High: 15 °F
Snow Showers
Saturday Night
Low: 11 °F
Snow Showers
Sunday
High: 17 °F
Chance Snow
ShowersSunday Night
Low: 2 °F
Partly Cloudy
Monday
High: 19 °F
Sunny
Detailed Forecast
Today
Mostly sunny, with a high near 39. North northwest wind 3 to 5 mph.
Tonight
Partly cloudy, with a low around 14. Light north wind increasing to 9 to 14 mph after midnight. Winds could gust as high as 24 mph.
Friday
Mostly cloudy, with a temperature falling to around 14 by 8am. Wind chill values as low as -1. North wind around 15 mph, with gusts as high as 23 mph.
Friday Night
A 20 percent chance of snow showers after midnight. Mostly cloudy, with a low around 7. Wind chill values as low as -8. North northeast wind 11 to 14 mph, with gusts as high as 21 mph.
Saturday
Snow showers. High near 15. Northeast wind 10 to 13 mph, with gusts as high as 20 mph. Chance of precipitation is 80%.
Saturday Night
Snow showers. Low around 11. Northeast wind 8 to 10 mph. Chance of precipitation is 90%.
Sunday
A 40 percent chance of snow showers, mainly before noon. Mostly cloudy, with a high near 17. North northwest wind 9 to 11 mph, with gusts as high as 18 mph.
Sunday Night
Partly cloudy, with a low around 2. Northwest wind 6 to 8 mph.
Monday
Sunny, with a high near 19. West northwest wind 6 to 8 mph becoming south southwest in the afternoon.
Monday Night
Mostly clear, with a low around 7. South southwest wind around 6 mph.
Tuesday
Mostly sunny, with a high near 32. South southwest wind around 7 mph.
Tuesday Night
Mostly cloudy, with a low around 18. South wind around 6 mph becoming west after midnight.
Wednesday
Partly sunny, with a high near 32. West wind 6 to 8 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
6:17 am CST Jan 22, 2026
7am CST Jan 22, 2026-6pm CST Jan 28, 2026
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