Isolated Severe Thunderstorms and Critical Fire Weather Tuesday

Isolated severe thunderstorms with strong wind gusts and hail will be possible Tuesday from parts of central Plains northeastward into the Midwest. Additional storms capable of damaging winds will be possible across the eastern Florida peninsula. Elevated to critical fire weather including gusty winds and low relative humidity is forecast again Tuesday over much of the northern Great Plains. Read More >

Current conditions at

Marion - Williamson County Regional Airport (KMWA)

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

Fair

53°F

12°C

Humidity 80%
Wind Speed SW 3 mph
Barometer 30.17 in
Dewpoint 47°F (8°C)
Visibility 10.00 mi
Last update 12 May 1:15 am CDT
Detailed forecast for

Williamson County

Tonight
Clear. Lows in the lower 50s. Northwest winds around 5 mph this evening, becoming light and variable.
Tuesday
Sunny. Highs in the lower 80s. Southwest winds 5 to 10 mph.
Tuesday Night
Mostly clear in the evening, then becoming partly cloudy. Lows in the lower 60s. Southwest winds 5 to 10 mph.
Wednesday
Sunny. Highs in the upper 70s. Northwest winds 10 to 15 mph.
Wednesday Night
Clear. Lows around 50. Northwest winds 10 to 15 mph, becoming north around 5 mph after midnight.
Thursday
Sunny. Highs in the mid 70s.
Thursday Night
Partly cloudy. Lows in the lower 50s.
Friday
Mostly sunny. A chance of showers and thunderstorms in the morning. Highs in the lower 80s. Chance of rain 30 percent.
Friday Night
Partly cloudy. A chance of showers in the evening. Lows in the upper 60s. Chance of rain 30 percent.
Saturday And Saturday Night
Partly cloudy. Highs in the upper 80s. Lows in the upper 60s.
Sunday
Mostly sunny. A chance of showers and thunderstorms in the afternoon. Highs around 90. Chance of rain 30 percent.
Sunday Night
Partly cloudy. Lows in the lower 70s.
Monday
Mostly sunny with a chance of showers. A chance of thunderstorms in the afternoon. Highs in the lower 90s. Chance of rain 50 percent.



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1142 PM CDT Mon May 11 2026
 
 

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database