Hazardous Weather Conditions
Current conditions at
Southern Illinois Airport (KMDH)
Lat: 37.78°NLon: 89.25°WElev: 400ft.
Overcast
33°F
1°C
| Humidity | 70% |
| Wind Speed | W 15 G 31 mph |
| Barometer | NA |
| Dewpoint | 24°F (-4°C) |
| Visibility | 10.00 mi |
| Wind Chill | 23°F (-5°C) |
| Last update | 16 Mar 3:52 am CDT |
Extended Forecast for
Saint Johns IL
Wind Advisory March 16, 04:14am until March 16, 07:00am
NOW until 7:00am Mon
Wind Advisory
Today
High: 33 °F
Breezy.
Slight Chance
Snow Showers
then Mostly
CloudyTonight
Low: 16 °F
Decreasing
CloudsTuesday
High: 37 °F
Sunny
Tuesday Night
Low: 30 °F
Chance
Rain/SnowWednesday
High: 62 °F
Mostly Sunny
Wednesday Night
Low: 42 °F
Partly Cloudy
Thursday
High: 71 °F
Sunny
Thursday Night
Low: 44 °F
Mostly Clear
Detailed Forecast
Today
A slight chance of snow showers between 10am and 11am. Mostly cloudy, with a high near 33. Breezy, with a west northwest wind 21 to 23 mph, with gusts as high as 33 mph. Chance of precipitation is 20%.
Tonight
Mostly cloudy, then gradually becoming mostly clear, with a low around 16. West northwest wind 11 to 18 mph, with gusts as high as 26 mph.
Tuesday
Sunny, with a high near 37. Northwest wind 6 to 9 mph becoming west southwest in the afternoon.
Tuesday Night
A slight chance of snow showers before 10pm, then a chance of rain and snow showers between 10pm and 4am, then a chance of snow showers after 4am. Mostly cloudy, with a low around 30. Light south southeast wind becoming south 8 to 13 mph in the evening. Winds could gust as high as 22 mph. Chance of precipitation is 40%.
Wednesday
Mostly sunny, with a high near 62. South southwest wind 11 to 14 mph, with gusts as high as 22 mph.
Wednesday Night
Partly cloudy, with a low around 42. South southwest wind around 6 mph.
Thursday
Sunny, with a high near 71. South southwest wind 6 to 8 mph.
Thursday Night
Mostly clear, with a low around 44. West wind around 6 mph becoming north northwest after midnight.
Friday
Mostly sunny, with a high near 73. Northeast wind 5 to 7 mph becoming southwest in the afternoon.
Friday Night
Partly cloudy, with a low around 52. Southwest wind around 7 mph.
Saturday
Sunny, with a high near 77. West wind 7 to 9 mph.
Saturday Night
Mostly clear, with a low around 50. West wind 6 to 9 mph becoming south southwest after midnight.
Sunday
Mostly sunny, with a high near 72. South wind 9 to 11 mph becoming north in the afternoon. Winds could gust as high as 18 mph.
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
Saint Johns IL
38.03°N 89.24°W
38.03°N 89.24°W
3:22 am CDT Mar 16, 2026
4am CDT Mar 16, 2026-6pm CDT Mar 22, 2026
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