Hazardous Weather Conditions
Current conditions at
Southern Illinois Airport (KMDH)
Lat: 37.78°NLon: 89.25°WElev: 400ft.
A Few Clouds
70°F
21°C
| Humidity | 76% |
| Wind Speed | S 20 G 35 mph |
| Barometer | 30.00 in (1015.5 mb) |
| Dewpoint | 62°F (17°C) |
| Visibility | 10.00 mi |
| Last update | 31 Mar 8:52 am CDT |
Extended Forecast for
2 Miles N Saint Johns IL
Today

High: 82 °F
Mostly Sunny
and BreezyTonight
Low: 63 °F
Slight Chance
T-storms then
Chance
ShowersWednesday

High: 79 °F
Chance
ShowersWednesday Night

Low: 64 °F
Slight Chance
ShowersThursday
High: 79 °F
Breezy.
Chance
Showers then
Showers
LikelyThursday Night

Low: 63 °F
Showers
Friday

High: 80 °F
Showers
LikelyFriday Night
Low: 61 °F
Chance
T-storms then
Showers
LikelySaturday

High: 72 °F
Showers
Likely
Detailed Forecast
Today
Mostly sunny, with a high near 82. Breezy, with a south southwest wind 15 to 23 mph, with gusts as high as 34 mph.
Tonight
A slight chance of showers and thunderstorms, then a chance of showers after 1am. Partly cloudy, with a low around 63. South southwest wind 10 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 40%.
Wednesday
A 50 percent chance of showers. Mostly cloudy, with a high near 79. South southwest wind 8 to 11 mph.
Wednesday Night
A 20 percent chance of showers. Mostly cloudy, with a low around 64. South southeast wind 9 to 14 mph, with gusts as high as 23 mph.
Thursday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 79. Breezy, with a south wind 15 to 21 mph, with gusts as high as 29 mph. Chance of precipitation is 70%.
Thursday Night
Showers and possibly a thunderstorm. Low around 63. South wind 10 to 17 mph, with gusts as high as 28 mph. Chance of precipitation is 80%.
Friday
A chance of showers, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 80. South wind 8 to 13 mph, with gusts as high as 20 mph. Chance of precipitation is 60%.
Friday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 61. South wind 11 to 13 mph, with gusts as high as 21 mph.
Saturday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 72. South wind 13 to 18 mph, with gusts as high as 25 mph.
Saturday Night
A chance of showers. Mostly cloudy, with a low around 42. West northwest wind 11 to 15 mph, with gusts as high as 22 mph.
Sunday
A chance of showers. Mostly sunny, with a high near 58. Northwest wind 13 to 15 mph, with gusts as high as 21 mph.
Sunday Night
Mostly clear, with a low around 35. North wind 6 to 10 mph.
Monday
Sunny, with a high near 61. North wind 6 to 8 mph.
Basemap Options
Click map to change the forecast location
Loading map...
ABOUT THIS FORECAST
Point Forecast:
2 Miles N Saint Johns IL
38.06°N 89.24°W
38.06°N 89.24°W
8:06 am CDT Mar 31, 2026
9am CDT Mar 31, 2026-6pm CDT Apr 6, 2026



