Current conditions at

Marion - Williamson County Regional Airport (KMWA)

Lat: 37.77°NLon: 89.01°WElev: 486ft.

Light Snow

12°F

-11°C

Humidity 79%
Wind Speed N 18 G 25 mph
Barometer 30.05 in
Dewpoint 7°F (-14°C)
Visibility 1.25 mi
Wind Chill-5°F (-21°C)
Last update 25 Jan 1:45 pm CST
Extended Forecast for

2 Miles N Johnston City IL

Cold Weather Advisory January 25, 02:08pm until January 26, 12:00am
Extreme Cold Warning January 26, 12:00am until January 27, 10:00am
Winter Storm Warning January 25, 02:08pm until January 25, 06:00pm
Click here for hazard details and duration
Cold Weather Advisory
Extreme Cold Warning
Winter Storm Warning
  •  
    Cold Weather Advisory January 25, 02:08pm until January 26, 12:00am
    Winter Storm Warning January 25, 02:08pm until January 25, 06:00pm

    NOW: Multiple hazards in effect

    Click HERE for Details

  • This Afternoon

    High: 14 °F

    Snow Likely

  • Tonight

    Tonight: Cloudy during the early evening, then gradual clearing, with a low around -6. Wind chill values as low as -19. West northwest wind 8 to 14 mph, with gusts as high as 22 mph.

    Low: -6 °F

    Gradual
    Clearing

  • Monday

    Monday: Sunny, with a high near 14. Wind chill values as low as -21. West northwest wind 5 to 9 mph becoming light west southwest  in the afternoon.

    High: 14 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 3. Wind chill values as low as -9. Light south southwest wind increasing to 8 to 13 mph in the evening. Winds could gust as high as 22 mph.

    Low: 3 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 29. Southwest wind 6 to 11 mph becoming northwest in the afternoon. Winds could gust as high as 21 mph.

    High: 29 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around -3. Northwest wind around 5 mph becoming calm  in the evening.

    Low: -3 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 25. Calm wind becoming west southwest around 6 mph in the afternoon.

    High: 25 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 2. Light and variable wind becoming north northwest around 5 mph after midnight.

    Low: 2 °F

    Partly Cloudy

Detailed Forecast

This Afternoon
Snow likely, mainly before 3pm. Mostly cloudy, with a high near 14. Wind chill values as low as -4. North northwest wind around 16 mph, with gusts as high as 25 mph. Chance of precipitation is 70%. Total daytime snow accumulation of 3 to 5 inches possible.
Tonight
Cloudy during the early evening, then gradual clearing, with a low around -6. Wind chill values as low as -19. West northwest wind 8 to 14 mph, with gusts as high as 22 mph.
Monday
Sunny, with a high near 14. Wind chill values as low as -21. West northwest wind 5 to 9 mph becoming light west southwest in the afternoon.
Monday Night
Mostly clear, with a low around 3. Wind chill values as low as -9. Light south southwest wind increasing to 8 to 13 mph in the evening. Winds could gust as high as 22 mph.
Tuesday
Sunny, with a high near 29. Southwest wind 6 to 11 mph becoming northwest in the afternoon. Winds could gust as high as 21 mph.
Tuesday Night
Partly cloudy, with a low around -3. Northwest wind around 5 mph becoming calm in the evening.
Wednesday
Mostly sunny, with a high near 25. Calm wind becoming west southwest around 6 mph in the afternoon.
Wednesday Night
Partly cloudy, with a low around 2. Light and variable wind becoming north northwest around 5 mph after midnight.
Thursday
Partly sunny, with a high near 19. North wind 3 to 6 mph.
Thursday Night
Mostly cloudy, with a low around 3. Light north wind.
Friday
Partly sunny, with a high near 19. North wind 3 to 7 mph.
Friday Night
Partly cloudy, with a low around -1. North wind 3 to 5 mph.
Saturday
Mostly sunny, with a high near 20. Northwest wind 5 to 7 mph.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles N Johnston City IL
 37.85°N 88.94°W
1:46 pm CST Jan 25, 2026
2pm CST Jan 25, 2026-6pm CST Jan 31, 2026
 
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Additional Resources

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