Current conditions at
Southern Illinois Airport (KMDH)
Lat: 37.78°NLon: 89.25°WElev: 400ft.
Fair
59°F
15°C
| Humidity | 93% |
| Wind Speed | Calm |
| Barometer | 30.10 in (1018.8 mb) |
| Dewpoint | 57°F (14°C) |
| Visibility | 10.00 mi |
| Last update | 4 Oct 10:52 pm CDT |
Extended Forecast for
5 Miles WSW Saint Johns IL
Tonight
Low: 56 °F
Clear
Sunday
High: 86 °F
Sunny
Sunday Night
Low: 64 °F
Clear
Monday
High: 84 °F
Slight Chance
T-storms then
Chance
ShowersMonday Night
Low: 65 °F
Chance
ShowersTuesday
High: 79 °F
Showers
LikelyTuesday Night
Low: 57 °F
Slight Chance
T-stormsWednesday
High: 75 °F
Mostly Sunny
Wednesday Night
Low: 51 °F
Mostly Clear
Detailed Forecast
Tonight
Clear, with a low around 56. Light south southeast wind.
Sunday
Sunny, with a high near 86. South wind 5 to 11 mph.
Sunday Night
Clear, with a low around 64. South southeast wind around 6 mph.
Monday
A slight chance of showers, then a chance of showers and thunderstorms after 10am. Mostly sunny, with a high near 84. South southeast wind 3 to 8 mph. Chance of precipitation is 50%.
Monday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 65. Southeast wind around 6 mph becoming calm in the evening.
Tuesday
Showers likely and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 79. Calm wind becoming north 5 to 9 mph in the morning. Chance of precipitation is 60%.
Tuesday Night
A 20 percent chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 57. North wind 6 to 8 mph.
Wednesday
Mostly sunny, with a high near 75. Northeast wind 7 to 10 mph.
Wednesday Night
Mostly clear, with a low around 51. East northeast wind around 6 mph.
Thursday
Sunny, with a high near 76. East wind 5 to 7 mph.
Thursday Night
Mostly clear, with a low around 52. East wind around 5 mph becoming calm in the evening.
Friday
Sunny, with a high near 80. Calm wind becoming south southwest 5 to 7 mph in the morning.
Friday Night
Mostly clear, with a low around 54. South wind around 6 mph becoming northwest after midnight.
Saturday
Sunny, with a high near 77. North wind 5 to 9 mph.
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
5 Miles WSW Saint Johns IL
38.01°N 89.33°W
38.01°N 89.33°W
9:17 pm CDT Oct 4, 2025
11pm CDT Oct 4, 2025-6pm CDT Oct 11, 2025
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