Current conditions at

Marion - Williamson County Regional Airport (KMWA)

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

Overcast and Breezy

66°F

19°C

Humidity 77%
Wind Speed S 22 G 31 mph
Barometer 29.68 in
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Last update 8 Jan 9:55 pm CST
Detailed forecast for

Johnson County

Tonight
Showers with a chance of thunderstorms. Lows in the lower 50s. Southwest winds 15 to 20 mph with gusts up to 40 mph. Chance of rain 90 percent.
Friday
Partly sunny in the morning, then becoming mostly cloudy. Less humid with highs in the mid 50s. Northwest winds around 10 mph with gusts up to 25 mph, becoming north in the afternoon.
Friday Night
Mostly cloudy. A chance of showers after midnight. Lows in the mid 40s. North winds around 5 mph. Chance of rain 50 percent.
Saturday
Mostly cloudy in the morning, then becoming mostly sunny. Highs in the upper 40s. Northwest winds 5 to 10 mph.
Saturday Night
Mostly clear. Cooler with lows in the upper 20s. West winds 5 to 10 mph.
Sunday And Sunday Night
Mostly clear. Highs in the mid 30s. Lows in the lower 20s.
Monday And Monday Night
Mostly clear. Highs in the mid 40s. Lows in the lower 30s.
Tuesday
Mostly sunny. Highs in the lower 50s.
Tuesday Night And Wednesday
Mostly cloudy. Lows in the mid 30s. Highs in the mid 40s.
Wednesday Night
Mostly cloudy. Lows in the mid 20s.
Thursday
Mostly sunny. Highs in the upper 30s.



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834 PM CST Thu Jan 8 2026
 
 

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database