Hazardous Weather Conditions

Current conditions at

Marion - Williamson County Regional Airport (KMWA)

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

Mostly Cloudy

28°F

-2°C

Humidity 47%
Wind Speed SW 14 mph
Barometer 30.05 in
Dewpoint 10°F (-12°C)
Visibility 10.00 mi
Wind Chill17°F (-8°C)
Last update 18 Jan 2:47 pm CST
Detailed forecast for

Johnson County

This Afternoon
Mostly sunny. Near steady temperature in the upper 20s. Southwest winds around 10 mph.
Tonight
Partly cloudy in the evening, then clearing. Lows around 16. Southwest winds 5 to 10 mph, becoming northwest after midnight.
Martin Luther King Jr Day
Sunny in the morning, then becoming partly sunny. Highs in the mid 20s. Northwest winds 5 to 10 mph.
Monday Night
Mostly clear. Cold with lows around 12. Calm winds, becoming southwest around 5 mph after midnight.
Tuesday
Sunny. Highs in the mid 30s. Southwest winds 5 to 10 mph.
Tuesday Night
Mostly clear in the evening, then becoming partly cloudy. Lows in the mid 20s.
Wednesday
Mostly cloudy with a chance of rain showers in the morning, then partly sunny in the afternoon. Highs in the mid 40s. Chance of rain 30 percent.
Wednesday Night
Partly cloudy. Lows in the mid 20s.
Thursday
Sunny. Highs in the upper 30s.
Thursday Night
Partly cloudy. Lows in the lower 20s.
Friday
Partly sunny. Highs in the lower 40s.
Friday Night
A chance of rain showers in the evening. Mostly cloudy with a chance of snow showers. Lows in the lower 20s. Chance of precipitation 30 percent.
Saturday
Mostly cloudy with a 40 percent chance of snow showers. Highs in the lower 30s.



Basemap Options
Click map to change the forecast location
Loading map...
224 PM CST Sun Jan 18 2026
 
 

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database