Current conditions at

Southern Illinois Airport (KMDH)

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

NA

Humidity NA
Wind Speed NA
Barometer NA
Dewpoint NA
Visibility NA
Last update *** Not a current observation ***
Detailed forecast for

Jackson County

Overnight
Mostly cloudy. Not as cool with lows in the upper 30s. Southwest winds 5 to 10 mph with gusts up to 25 mph.
Wednesday
Mostly cloudy. Highs in the mid 50s. Northwest winds around 5 mph, becoming northeast in the afternoon.
Wednesday Night
Mostly cloudy. A chance of showers after midnight. Lows in the mid 30s. Northeast winds around 5 mph. Chance of rain 50 percent.
Thursday
Mostly sunny. Highs in the mid 50s. Northeast winds around 5 mph.
Thursday Night
Mostly clear. Lows in the mid 30s. Northeast winds around 5 mph, becoming southwest after midnight.
Friday And Friday Night
Clear. Highs in the mid 60s. Lows in the lower 40s.
Saturday
Sunny. Highs in the upper 60s.
Saturday Night
Partly cloudy in the evening, then becoming mostly cloudy. Lows in the mid 30s.
Sunday
Mostly cloudy. A chance of rain showers in the afternoon. Cooler with highs in the lower 50s. Chance of rain 30 percent.
Sunday Night
Mostly cloudy with a 50 percent chance of showers. Lows in the upper 30s.
Monday
Mostly cloudy with a 40 percent chance of showers. Highs in the upper 40s.
Monday Night
Mostly cloudy with a chance of rain showers. Lows in the mid 30s. Chance of rain 40 percent.
Tuesday
Mostly cloudy with a 40 percent chance of rain showers. Highs in the lower 50s.



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1248 AM CST Wed Feb 25 2026
 
 

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database