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

-7°C

19°F

Humidity 53%
Wind Speed N 28 km/h
Barometer 30.55 in
Dewpoint -15°C (5°F)
Visibility 16 km
Wind Chill-16°C (4°F)
Last update 23 Jan 8:47 am CST
Extended Forecast for

Energy IL

Cold Weather Advisory January 23, 06:00pm until January 24, 01:00pm
Winter Storm Warning January 24, 12:00am until January 25, 06:00pm
Click here for hazard details and duration
Cold Weather Advisory
Winter Storm Warning

  • Today

    Today: Partly sunny, with a temperature falling to around -11 by 4pm. Wind chill values as low as -19. North wind 23 to 27 km/h, with gusts as high as 40 km/h.

    High: -7 °C⇓

    Partly Sunny

  • Tonight

    Tonight: A 30 percent chance of snow, mainly after 5am. Mostly cloudy, with a low around -14. Wind chill values as low as -23. Northeast wind 21 to 23 km/h, with gusts as high as 35 km/h.

    Low: -14 °C

    Mostly Cloudy
    then Chance
    Snow

  • Saturday

    Saturday: Snow showers. High near -10. Wind chill values as low as -23. Northeast wind 21 to 23 km/h, with gusts as high as 34 km/h. Chance of precipitation is 100%. New snow accumulation of 7 to 11 centimeters possible.

    High: -10 °C

    Snow Showers
    Likely then
    Snow Showers

  • Saturday Night

    Saturday Night: Snow showers before 9pm, then snow showers, possibly mixed with sleet. Low around -12. Northeast wind 14 to 21 km/h, with gusts as high as 32 km/h. Chance of precipitation is 100%.

    Low: -12 °C

    Snow/Sleet

  • Sunday

    Sunday: Snow showers, possibly mixed with sleet, becoming all snow after 9am. High near -9. North wind 16 to 23 km/h, with gusts as high as 35 km/h. Chance of precipitation is 90%.

    High: -9 °C

    Snow/Sleet
    then Chance
    Snow Showers

  • Sunday Night

    Sunday Night: A 20 percent chance of snow showers before midnight. Mostly cloudy, with a low around -18. Northwest wind 14 to 21 km/h, with gusts as high as 32 km/h.

    Low: -18 °C

    Slight Chance
    Snow Showers
    then Partly
    Cloudy

  • Monday

    Monday: Mostly sunny, with a high near -11. Northwest wind 10 to 16 km/h.

    High: -11 °C

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around -16. South southwest wind 8 to 13 km/h.

    Low: -16 °C

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near -3. Southwest wind 10 to 16 km/h.

    High: -3 °C

    Mostly Sunny

Detailed Forecast

Today
Partly sunny, with a temperature falling to around -11 by 4pm. Wind chill values as low as -19. North wind 23 to 27 km/h, with gusts as high as 40 km/h.
Tonight
A 30 percent chance of snow, mainly after 5am. Mostly cloudy, with a low around -14. Wind chill values as low as -23. Northeast wind 21 to 23 km/h, with gusts as high as 35 km/h.
Saturday
Snow showers. High near -10. Wind chill values as low as -23. Northeast wind 21 to 23 km/h, with gusts as high as 34 km/h. Chance of precipitation is 100%. New snow accumulation of 7 to 11 centimeters possible.
Saturday Night
Snow showers before 9pm, then snow showers, possibly mixed with sleet. Low around -12. Northeast wind 14 to 21 km/h, with gusts as high as 32 km/h. Chance of precipitation is 100%.
Sunday
Snow showers, possibly mixed with sleet, becoming all snow after 9am. High near -9. North wind 16 to 23 km/h, with gusts as high as 35 km/h. Chance of precipitation is 90%.
Sunday Night
A 20 percent chance of snow showers before midnight. Mostly cloudy, with a low around -18. Northwest wind 14 to 21 km/h, with gusts as high as 32 km/h.
Monday
Mostly sunny, with a high near -11. Northwest wind 10 to 16 km/h.
Monday Night
Mostly clear, with a low around -16. South southwest wind 8 to 13 km/h.
Tuesday
Mostly sunny, with a high near -3. Southwest wind 10 to 16 km/h.
Tuesday Night
Mostly cloudy, with a low around -13. South southwest wind 5 to 8 km/h becoming calm.
Wednesday
Partly sunny, with a high near -6. Northwest wind 5 to 13 km/h.
Wednesday Night
Partly cloudy, with a low around -16. West northwest wind 8 to 10 km/h.
Thursday
Mostly sunny, with a high near -8. Northwest wind 10 to 16 km/h.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Energy IL
 37.76°N 89°W
Last Update:
7:27 am CST Jan 23, 2026
Forecast Valid:
9am CST Jan 23, 2026-6pm CST Jan 29, 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