Hazardous Weather Conditions
Current conditions at
Southern Illinois Airport (KMDH)
Lat: 37.78°NLon: 89.25°WElev: 400ft.
Rain Fog/Mist
60°F
16°C
| Humidity | 96% |
| Wind Speed | S 3 mph |
| Barometer | 29.93 in (1013.2 mb) |
| Dewpoint | 59°F (15°C) |
| Visibility | 2.50 mi |
| Last update | 7 Mar 8:52 am CST |
Extended Forecast for
3 Miles NNW Vergennes IL
Today

High: 70 °F⇓
Showers
Tonight

Low: 38 °F
Decreasing
CloudsSunday

High: 66 °F
Sunny
Sunday Night

Low: 45 °F
Clear
Monday

High: 75 °F
Sunny
Monday Night
Low: 61 °F
Mostly Clear
then Slight
Chance
ShowersTuesday
High: 79 °F
Slight Chance
Showers then
Chance
T-stormsTuesday Night

Low: 63 °F
Showers
Wednesday

High: 72 °F
Showers
Detailed Forecast
Today
Showers and thunderstorms before 4pm, then a slight chance of showers between 4pm and 5pm. Temperature rising to near 70 by noon, then falling to around 59 during the remainder of the day. South southwest wind 6 to 15 mph becoming west northwest in the afternoon. Winds could gust as high as 23 mph. Chance of precipitation is 80%.
Tonight
Mostly cloudy, then gradually becoming mostly clear, with a low around 38. Northwest wind 6 to 11 mph becoming light west northwest after midnight.
Sunday
Sunny, with a high near 66. Calm wind becoming southwest 5 to 7 mph in the morning.
Sunday Night
Clear, with a low around 45. South wind around 7 mph.
Monday
Sunny, with a high near 75. South southwest wind 7 to 17 mph, with gusts as high as 24 mph.
Monday Night
A 20 percent chance of showers after midnight. Partly cloudy, with a low around 61. South southwest wind 9 to 14 mph, with gusts as high as 22 mph.
Tuesday
A slight chance of showers, then a chance of showers and thunderstorms after noon. Mostly cloudy, with a high near 79. South southwest wind 9 to 18 mph, with gusts as high as 25 mph. Chance of precipitation is 40%.
Tuesday Night
Showers and possibly a thunderstorm. Cloudy, with a low around 63. South southwest wind around 17 mph, with gusts as high as 28 mph.
Wednesday
Showers and possibly a thunderstorm. Cloudy, with a high near 72. South southwest wind around 18 mph becoming northwest in the afternoon. Winds could gust as high as 28 mph.
Wednesday Night
A chance of showers before midnight. Partly cloudy, with a low around 34. Northwest wind 10 to 18 mph, with gusts as high as 25 mph.
Thursday
Sunny, with a high near 52. Northwest wind 7 to 11 mph.
Thursday Night
Mostly cloudy, with a low around 37. South wind 6 to 13 mph, with gusts as high as 22 mph.
Friday
Partly sunny, with a high near 64. Breezy, with a southwest wind 14 to 20 mph, with gusts as high as 26 mph.
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ABOUT THIS FORECAST
Point Forecast:
3 Miles NNW Vergennes IL
37.93°N 89.36°W
37.93°N 89.36°W
9:21 am CST Mar 7, 2026
9am CST Mar 7, 2026-6pm CDT Mar 13, 2026



