Hazardous Weather Conditions
Current conditions at
Southern Illinois Airport (KMDH)
Lat: 37.78°NLon: 89.25°WElev: 400ft.
Partly Cloudy
30°F
-1°C
| Humidity | 96% |
| Wind Speed | S 3 mph |
| Barometer | 30.08 in (1018.7 mb) |
| Dewpoint | 29°F (-2°C) |
| Visibility | 10.00 mi |
| Last update | 16 Feb 5:52 am CST |
Extended Forecast for
2 Miles N Saint Johns IL
Dense Fog Advisory February 16, 06:30am until February 16, 09:00am
NOW until 9:00am Mon
Dense Fog Advisory
Washington's Birthday
High: 62 °F
Areas Dense
Fog then
Mostly SunnyTonight
Low: 42 °F
Partly Cloudy
Tuesday
High: 63 °F
Mostly Cloudy
Tuesday Night
Low: 57 °F
Decreasing
Clouds and
BreezyWednesday
High: 72 °F
Mostly Sunny
Wednesday Night
Low: 48 °F
Mostly Clear
then Slight
Chance
ShowersThursday
High: 71 °F
Chance
Showers then
Chance
T-stormsThursday Night
Low: 40 °F
Slight Chance
T-storms then
Partly Cloudy
Detailed Forecast
Washington's Birthday
Areas of dense fog before 9am. Otherwise, mostly sunny, with a high near 62. Light south wind becoming south southwest 5 to 10 mph in the morning.
Tonight
Partly cloudy, with a low around 42. South wind around 7 mph.
Tuesday
Mostly cloudy, with a high near 63. South wind 7 to 12 mph increasing to 13 to 18 mph in the afternoon. Winds could gust as high as 28 mph.
Tuesday Night
Cloudy, then gradually becoming partly cloudy, with a low around 57. Breezy, with a south southwest wind 18 to 22 mph, with gusts as high as 33 mph.
Wednesday
Mostly sunny, with a high near 72. Southwest wind 8 to 17 mph, with gusts as high as 28 mph.
Wednesday Night
A 20 percent chance of showers after midnight. Mostly clear, with a low around 48. South southwest wind around 7 mph.
Thursday
A chance of showers, with thunderstorms also possible after noon. Mostly sunny, with a high near 71. South wind 7 to 15 mph, with gusts as high as 22 mph. Chance of precipitation is 50%.
Thursday Night
A slight chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 40. South southwest wind around 11 mph becoming west after midnight. Winds could gust as high as 21 mph.
Friday
A slight chance of showers after noon. Mostly sunny, with a high near 54. West wind 7 to 11 mph, with gusts as high as 20 mph.
Friday Night
A slight chance of showers. Partly cloudy, with a low around 33. North northwest wind around 6 mph.
Saturday
A slight chance of showers. Mostly sunny, with a high near 50. North northwest wind 6 to 9 mph.
Saturday Night
A chance of showers. Mostly cloudy, with a low around 30. North northwest wind 7 to 9 mph.
Sunday
A slight chance of showers. Mostly sunny, with a high near 43. Northwest wind 9 to 13 mph, with gusts as high as 20 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
4:32 am CST Feb 16, 2026
6am CST Feb 16, 2026-6pm CST Feb 22, 2026
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