National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Marion - Williamson County Regional Airport (KMWA)

Lat: 37.77°NLon: 89.01°WElev: 486ft.

Fair

37°F

3°C

Humidity 45%
Wind Speed NW 14 mph
Barometer 30.52 in
Dewpoint 18°F (-8°C)
Visibility 10.00 mi
Wind Chill28°F (-2°C)
Last update 11 Jan 12:45 pm CST
Extended Forecast for

3 Miles SE Sesser IL

  • This Afternoon

    This Afternoon: Sunny, with a high near 39. West northwest wind 5 to 7 mph.

    High: 39 °F

    Sunny

  • Tonight

    Tonight: Clear, with a low around 24. Calm wind becoming south southwest 5 to 8 mph after midnight.

    Low: 24 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 50. Southwest wind 8 to 11 mph, with gusts as high as 18 mph.

    High: 50 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 35. South southwest wind 6 to 9 mph.

    Low: 35 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 58. Southwest wind 10 to 14 mph, with gusts as high as 21 mph.

    High: 58 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A 20 percent chance of showers. Mostly cloudy, with a low around 40. West southwest wind 7 to 10 mph.

    Low: 40 °F

    Slight Chance
    Showers

  • Wednesday

    Wednesday: A 20 percent chance of showers. Mostly cloudy, with a high near 45. Northwest wind 9 to 18 mph, with gusts as high as 26 mph.

    High: 45 °F

    Slight Chance
    Showers

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 19. North northwest wind 14 to 18 mph, with gusts as high as 26 mph.

    Low: 19 °F

    Mostly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 33. North northwest wind 6 to 13 mph, with gusts as high as 20 mph.

    High: 33 °F

    Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 39. West northwest wind 5 to 7 mph.
Tonight
Clear, with a low around 24. Calm wind becoming south southwest 5 to 8 mph after midnight.
Monday
Sunny, with a high near 50. Southwest wind 8 to 11 mph, with gusts as high as 18 mph.
Monday Night
Partly cloudy, with a low around 35. South southwest wind 6 to 9 mph.
Tuesday
Mostly sunny, with a high near 58. Southwest wind 10 to 14 mph, with gusts as high as 21 mph.
Tuesday Night
A 20 percent chance of showers. Mostly cloudy, with a low around 40. West southwest wind 7 to 10 mph.
Wednesday
A 20 percent chance of showers. Mostly cloudy, with a high near 45. Northwest wind 9 to 18 mph, with gusts as high as 26 mph.
Wednesday Night
Mostly cloudy, with a low around 19. North northwest wind 14 to 18 mph, with gusts as high as 26 mph.
Thursday
Sunny, with a high near 33. North northwest wind 6 to 13 mph, with gusts as high as 20 mph.
Thursday Night
Mostly cloudy, with a low around 26. Southwest wind 5 to 10 mph.
Friday
Partly sunny, with a high near 43. South southwest wind 9 to 14 mph, with gusts as high as 20 mph.
Friday Night
Mostly cloudy, with a low around 25. West wind 7 to 10 mph.
Saturday
Partly sunny, with a high near 34. West northwest wind 10 to 14 mph, with gusts as high as 20 mph.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SE Sesser IL
 38.07°N 89.01°W
Last Update:
1:17 pm CST Jan 11, 2026
Forecast Valid:
1pm CST Jan 11, 2026-6pm CST Jan 17, 2026
 
Forecast Discussion
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation