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.

Mostly Cloudy

30°F

-1°C

Humidity 75%
Wind Speed SE 12 mph
Barometer 30.35 in
Dewpoint 23°F (-5°C)
Visibility 10.00 mi
Wind Chill20°F (-7°C)
Last update 1 Dec 9:47 am CST
Extended Forecast for

Pittsburg IL

  • Today

    Today: A 30 percent chance of snow showers, mainly after 5pm. Mostly cloudy, with a high near 36. East wind around 6 mph becoming light and variable in the afternoon.

    High: 36 °F

    Mostly Cloudy
    then Chance
    Snow Showers

  • Tonight

    Tonight: Snow showers and sleet before 1am, then a chance of snow showers between 1am and 3am. Low around 24. Calm wind becoming northwest 5 to 7 mph after midnight. Chance of precipitation is 90%. New snow and sleet accumulation of around an inch possible.

    Low: 24 °F

    Snow/Sleet
    then Snow
    Showers
    Likely

  • Tuesday

    Tuesday: Mostly cloudy, then gradually becoming sunny, with a high near 33. North northwest wind 5 to 8 mph becoming calm in the afternoon.

    High: 33 °F

    Decreasing
    Clouds

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 21. Light and variable wind.

    Low: 21 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 42. South southwest wind 5 to 10 mph.

    High: 42 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 23. Calm wind becoming north northwest 5 to 9 mph after midnight.

    Low: 23 °F

    Mostly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 30. North northwest wind 5 to 9 mph becoming light north northeast in the afternoon.

    High: 30 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: A chance of snow showers after midnight. Mostly cloudy, with a low around 21. Calm wind.

    Low: 21 °F

    Mostly Cloudy
    then Chance
    Snow Showers

  • Friday

    Friday: A chance of snow showers before noon, then a chance of rain showers. Mostly cloudy, with a high near 37. Calm wind becoming south southeast around 5 mph.

    High: 37 °F

    Chance Snow
    Showers then
    Chance
    Showers

Detailed Forecast

Today
A 30 percent chance of snow showers, mainly after 5pm. Mostly cloudy, with a high near 36. East wind around 6 mph becoming light and variable in the afternoon.
Tonight
Snow showers and sleet before 1am, then a chance of snow showers between 1am and 3am. Low around 24. Calm wind becoming northwest 5 to 7 mph after midnight. Chance of precipitation is 90%. New snow and sleet accumulation of around an inch possible.
Tuesday
Mostly cloudy, then gradually becoming sunny, with a high near 33. North northwest wind 5 to 8 mph becoming calm in the afternoon.
Tuesday Night
Mostly clear, with a low around 21. Light and variable wind.
Wednesday
Mostly sunny, with a high near 42. South southwest wind 5 to 10 mph.
Wednesday Night
Mostly cloudy, with a low around 23. Calm wind becoming north northwest 5 to 9 mph after midnight.
Thursday
Partly sunny, with a high near 30. North northwest wind 5 to 9 mph becoming light north northeast in the afternoon.
Thursday Night
A chance of snow showers after midnight. Mostly cloudy, with a low around 21. Calm wind.
Friday
A chance of snow showers before noon, then a chance of rain showers. Mostly cloudy, with a high near 37. Calm wind becoming south southeast around 5 mph.
Friday Night
A chance of showers before midnight. Mostly cloudy, with a low around 28. Light southwest wind.
Saturday
Partly sunny, with a high near 43. Southwest wind 3 to 7 mph.
Saturday Night
Mostly cloudy, with a low around 30. Light and variable wind becoming west around 5 mph after midnight.
Sunday
Partly sunny, with a high near 41. Northwest wind 5 to 8 mph.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Pittsburg IL
 37.78°N 88.86°W
Last Update:
9:06 am CST Dec 1, 2025
Forecast Valid:
9am CST Dec 1, 2025-6pm CST Dec 7, 2025
 
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Additional Resources

Radar & Satellite Image

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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