Current conditions at

Southern Illinois Airport (KMDH)

Lat: 37.78° N Lon: 89.25° W Elev: 400 ft.

Mostly Cloudy

56°F

13°C

Humidity 77%
Wind Speed S 16 G 28 mph
Barometer 29.81 in (1009.3 mb)
Dewpoint 49°F (9°C)
Visibility 10.00 mi
Last update 17 Feb 7:52 pm CST
Detailed forecast for

Jackson County

Tonight
Cloudy. A slight chance of showers after midnight. Not as cool with lows in the mid 50s. South winds 15 to 20 mph with gusts up to 40 mph. Chance of rain 20 percent.
Wednesday
Mostly sunny. Not as cool with highs in the lower 70s. Southwest winds 10 to 15 mph. Gusts up to 30 mph in the morning.
Wednesday Night
Mostly clear in the evening, then partly cloudy with a chance of showers after midnight. Lows in the mid 50s. South winds 5 to 10 mph. Chance of rain 40 percent.
Thursday
Partly sunny. A chance of showers in the morning, then showers likely in the afternoon. Highs in the lower 70s. South winds 10 to 15 mph with gusts up to 25 mph. Chance of rain 60 percent.
Thursday Night
Partly cloudy in the evening, then becoming mostly clear. Lows in the lower 40s. West winds 10 to 15 mph.
Friday
Sunny, cooler with highs in the mid 50s.
Friday Night
Partly cloudy. Lows in the mid 30s.
Saturday
Mostly sunny. A chance of rain showers in the afternoon. Highs in the upper 40s. Chance of rain 40 percent.
Saturday Night
Partly cloudy. A chance of rain and snow showers in the evening. Lows in the upper 20s. Chance of precipitation 40 percent.
Sunday
Mostly sunny. Highs around 40.
Sunday Night Through Monday Night
Mostly clear. Lows in the lower 20s. Highs in the upper 30s.
Tuesday
Mostly sunny. Highs in the mid 40s.



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548 PM CST Tue Feb 17 2026
 
 

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database