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

Hazardous Weather Conditions

Current conditions at

Marion - Williamson County Regional Airport (KMWA)

Lat: 37.77°NLon: 89.01°WElev: 486ft.

Fair

18°F

-8°C

Humidity 73%
Wind Speed NW 9 mph
Barometer 30.42 in
Dewpoint 10°F (-12°C)
Visibility 10.00 mi
Wind Chill7°F (-14°C)
Last update 30 Dec 7:45 am CST
Extended Forecast for

Benton IL

  • Today

    Today: Increasing clouds, with a high near 35. West northwest wind 7 to 9 mph becoming southwest in the afternoon.

    High: 35 °F

    Increasing
    Clouds

  • Tonight

    Tonight: Mostly clear, with a low around 27. Southwest wind 5 to 7 mph.

    Low: 27 °F

    Mostly Clear

  • Wednesday

    Wednesday: Partly sunny, with a high near 43. West wind 5 to 10 mph.

    High: 43 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 27. Light and variable wind.

    Low: 27 °F

    Partly Cloudy

  • New Year's Day

    New Year's Day: Mostly sunny, with a high near 41. Light and variable wind becoming north northeast around 6 mph.

    High: 41 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 31. Calm wind.

    Low: 31 °F

    Mostly Cloudy

  • Friday

    Friday: Cloudy, with a high near 47. Calm wind becoming east northeast around 6 mph in the morning.

    High: 47 °F

    Cloudy

  • Friday Night

    Friday Night: A slight chance of showers before midnight. Mostly cloudy, with a low around 29. North northeast wind 3 to 6 mph.

    Low: 29 °F

    Slight Chance
    Showers then
    Mostly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 43. North northeast wind 3 to 7 mph.

    High: 43 °F

    Mostly Sunny

Detailed Forecast

Today
Increasing clouds, with a high near 35. West northwest wind 7 to 9 mph becoming southwest in the afternoon.
Tonight
Mostly clear, with a low around 27. Southwest wind 5 to 7 mph.
Wednesday
Partly sunny, with a high near 43. West wind 5 to 10 mph.
Wednesday Night
Partly cloudy, with a low around 27. Light and variable wind.
New Year's Day
Mostly sunny, with a high near 41. Light and variable wind becoming north northeast around 6 mph.
Thursday Night
Mostly cloudy, with a low around 31. Calm wind.
Friday
Cloudy, with a high near 47. Calm wind becoming east northeast around 6 mph in the morning.
Friday Night
A slight chance of showers before midnight. Mostly cloudy, with a low around 29. North northeast wind 3 to 6 mph.
Saturday
Mostly sunny, with a high near 43. North northeast wind 3 to 7 mph.
Saturday Night
Partly cloudy, with a low around 28. Calm wind.
Sunday
Mostly sunny, with a high near 50. Calm wind becoming south 5 to 7 mph in the morning.
Sunday Night
Partly cloudy, with a low around 35. South wind around 6 mph becoming west southwest after midnight.
Monday
Sunny, with a high near 51. West northwest wind 6 to 8 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Benton IL
 38°N 88.93°W
Last Update:
5:41 am CST Dec 30, 2025
Forecast Valid:
8am CST Dec 30, 2025-6pm CST Jan 5, 2026
 
Forecast Discussion
 
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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