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

31°F

-1°C

Humidity 73%
Wind Speed Calm
Barometer 30.29 in
Dewpoint 24°F (-4°C)
Visibility 10.00 mi
Last update 26 Nov 5:15 am CST
Extended Forecast for

Johnston City IL

  • Today

    Today: Sunny, with a high near 51. Northwest wind around 5 mph becoming calm in the afternoon.

    High: 51 °F

    Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 34. Light southeast wind.

    Low: 34 °F

    Increasing
    Clouds

  • Wednesday

    Wednesday: Showers likely after noon. Cloudy, with a high near 52. Light and variable wind becoming south 5 to 7 mph. Chance of precipitation is 60%.

    High: 52 °F

    Cloudy then
    Showers
    Likely

  • Wednesday Night

    Wednesday Night: Showers likely, mainly before midnight. Cloudy, with a low around 36. Northeast wind 5 to 10 mph becoming north northwest after midnight. Chance of precipitation is 70%.

    Low: 36 °F

    Showers
    Likely then
    Slight Chance
    Showers

  • Thanksgiving Day

    Thanksgiving Day: Partly sunny, with a high near 45. North northwest wind 8 to 11 mph, with gusts as high as 18 mph.

    High: 45 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 22. Northwest wind around 6 mph.

    Low: 22 °F

    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 39. West northwest wind 6 to 11 mph, with gusts as high as 20 mph.

    High: 39 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 20. Light northwest wind.

    Low: 20 °F

    Partly Cloudy

  • Saturday

    Saturday: A chance of snow showers after noon. Mostly cloudy, with a high near 37. Calm wind becoming west southwest 5 to 8 mph in the morning.

    High: 37 °F

    Mostly Cloudy
    then Chance
    Snow Showers

Detailed Forecast

Today
Sunny, with a high near 51. Northwest wind around 5 mph becoming calm in the afternoon.
Tonight
Increasing clouds, with a low around 34. Light southeast wind.
Wednesday
Showers likely after noon. Cloudy, with a high near 52. Light and variable wind becoming south 5 to 7 mph. Chance of precipitation is 60%.
Wednesday Night
Showers likely, mainly before midnight. Cloudy, with a low around 36. Northeast wind 5 to 10 mph becoming north northwest after midnight. Chance of precipitation is 70%.
Thanksgiving Day
Partly sunny, with a high near 45. North northwest wind 8 to 11 mph, with gusts as high as 18 mph.
Thursday Night
Partly cloudy, with a low around 22. Northwest wind around 6 mph.
Friday
Sunny, with a high near 39. West northwest wind 6 to 11 mph, with gusts as high as 20 mph.
Friday Night
Partly cloudy, with a low around 20. Light northwest wind.
Saturday
A chance of snow showers after noon. Mostly cloudy, with a high near 37. Calm wind becoming west southwest 5 to 8 mph in the morning.
Saturday Night
A chance of snow showers before midnight. Mostly cloudy, with a low around 18. Northwest wind 6 to 8 mph.
Sunday
Sunny, with a high near 32. West northwest wind 8 to 11 mph, with gusts as high as 20 mph.
Sunday Night
Mostly clear, with a low around 14. West northwest wind 3 to 6 mph.
Monday
Sunny, with a high near 35. West northwest wind 5 to 9 mph.
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Map Legend

ABOUT THIS FORECAST

 
Point Forecast:
Johnston City IL
 37.82°N 88.91°W
Last Update:
5:01 am CST Nov 26, 2024
Forecast Valid:
5am CST Nov 26, 2024-6pm CST Dec 2, 2024
 
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