Current conditions at

Marion - Williamson County Regional Airport (KMWA)

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

Mostly Cloudy

45°F

7°C

Humidity 81%
Wind Speed Calm
Barometer 30.11 in
Dewpoint 39°F (4°C)
Visibility 10.00 mi
Last update 1 Nov 6:45 am CDT
Detailed forecast for

Johnson County

Today
Cloudy. A slight chance of showers this morning, then showers this afternoon. Highs in the lower 50s. Northwest winds around 5 mph. Chance of rain 80 percent.
Tonight
Mostly cloudy with a chance of rain showers in the evening, then partly cloudy with a slight chance of rain showers after midnight. Patchy frost after midnight. Lows in the mid 30s. Calm winds, becoming north around 5 mph after midnight. Chance of rain 50 percent.
Sunday
Patchy frost in the morning. Sunny. Highs in the mid 50s. North winds around 5 mph.
Sunday Night
Clear. Lows in the mid 30s. Calm winds, becoming southwest around 5 mph after midnight.
Monday
Sunny. Highs in the lower 60s. Southwest winds around 5 mph.
Monday Night And Tuesday
Mostly clear. Lows in the upper 30s. Highs in the mid 60s.
Tuesday Night And Wednesday
Mostly clear. Lows in the upper 40s. Highs in the upper 60s.
Wednesday Night
Clear. Lows in the lower 40s.
Thursday
Sunny. Highs in the upper 60s.
Thursday Night
Mostly clear in the evening, then becoming partly cloudy. Lows in the lower 50s.
Friday
Partly sunny with a 30 percent chance of showers. Highs in the upper 60s.



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417 AM CDT Sat Nov 1 2025
 
 

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database