Current conditions at

Marion - Williamson County Regional Airport (KMWA)

Lat: 37.77° N Lon: 89.01° W Elev: 486 ft.

Fair

72°F

22°C

Humidity 44%
Wind Speed S 5 mph
Barometer 30.24 in
Dewpoint 48°F (9°C)
Visibility 10.00 mi
Last update 27 Oct 1:47 pm CDT
Detailed forecast for

Johnson County

This Afternoon
Mostly cloudy. Near steady temperature in the lower 70s. South winds around 5 mph.
Tonight
Mostly cloudy in the evening, then clearing. Patchy fog after midnight. Lows in the upper 40s. Calm winds.
Wednesday
Patchy fog in the morning. Sunny. Highs in the upper 70s. South winds around 5 mph.
Wednesday Night
Clear. Lows in the upper 40s. Calm winds, becoming south around 5 mph after midnight.
Thursday
Sunny. Highs in the upper 70s. South winds 5 to 10 mph.
Thursday Night
Mostly clear in the evening, then becoming partly cloudy. Lows in the lower 50s.
Friday And Friday Night
Mostly cloudy. Highs in the upper 70s. Lows in the mid 50s.
Saturday
Mostly cloudy. A chance of showers in the afternoon. Highs in the lower 70s. Chance of rain 30 percent.
Saturday Night
Mostly cloudy. A chance of showers in the evening, then showers likely after midnight. Lows in the mid 50s. Chance of rain 60 percent.
Sunday
Mostly cloudy. A chance of showers in the morning. Highs in the upper 60s. Chance of rain 50 percent.
Sunday Night
Mostly cloudy. Lows in the mid 50s.
Monday
Mostly cloudy. A chance of showers in the afternoon. Highs in the lower 70s. Chance of rain 30 percent.



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128 PM CDT Tue Oct 27 2026
 
 

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database