Cold Temperatures for the Eastern U.S.; Lake Effect Snow in the Great Lakes; Heavy Rain in the Pacific Northwest

Cold temperatures will continue across much of the eastern U.S. into today. Heavy lake effect snow continues into today east of Lakes Erie and Ontario. Two Pacific cold fronts will cross the Pacific Northwest early this week followed by another atmospheric river. Heavy rain and gusty winds are expected through midweek, with the potential for renewed urban and river flooding. Read More >

Current conditions at

Marion - Williamson County Regional Airport (KMWA)

Lat: 37.77°NLon: 89.01°WElev: 486ft.

Fair

34°F

1°C

Humidity 32%
Wind Speed S 12 mph
Barometer 30.18 in
Dewpoint 7°F (-14°C)
Visibility 10.00 mi
Wind Chill25°F (-4°C)
Last update 15 Dec 4:45 pm CST
Extended Forecast for

Vienna IL

  • This Afternoon

    This Afternoon: Sunny, with a high near 36. South southwest wind 7 to 9 mph, with gusts as high as 21 mph.

    High: 36 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 25. South southwest wind 5 to 7 mph becoming calm  in the evening.

    Low: 25 °F

    Mostly Clear

  • Tuesday

    Tuesday: Partly sunny, with a high near 46. Light south southwest wind increasing to 6 to 11 mph in the morning. Winds could gust as high as 22 mph.

    High: 46 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 34. Southwest wind 5 to 8 mph.

    Low: 34 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 53. Southwest wind 3 to 6 mph.

    High: 53 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: A 40 percent chance of rain after midnight.  Mostly cloudy, with a low around 42. Light south wind increasing to 5 to 10 mph in the evening. Winds could gust as high as 22 mph.

    Low: 42 °F

    Mostly Cloudy
    then Chance
    Rain

  • Thursday

    Thursday: Rain and possibly a thunderstorm before 3pm, then rain likely.  High near 56. South wind 10 to 14 mph becoming west northwest in the afternoon. Winds could gust as high as 24 mph.  Chance of precipitation is 90%.

    High: 56 °F

    Rain

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 22. West wind 5 to 9 mph becoming calm  after midnight.

    Low: 22 °F

    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 39. Calm wind becoming southwest around 5 mph.

    High: 39 °F

    Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 36. South southwest wind 7 to 9 mph, with gusts as high as 21 mph.
Tonight
Mostly clear, with a low around 25. South southwest wind 5 to 7 mph becoming calm in the evening.
Tuesday
Partly sunny, with a high near 46. Light south southwest wind increasing to 6 to 11 mph in the morning. Winds could gust as high as 22 mph.
Tuesday Night
Mostly cloudy, with a low around 34. Southwest wind 5 to 8 mph.
Wednesday
Mostly sunny, with a high near 53. Southwest wind 3 to 6 mph.
Wednesday Night
A 40 percent chance of rain after midnight. Mostly cloudy, with a low around 42. Light south wind increasing to 5 to 10 mph in the evening. Winds could gust as high as 22 mph.
Thursday
Rain and possibly a thunderstorm before 3pm, then rain likely. High near 56. South wind 10 to 14 mph becoming west northwest in the afternoon. Winds could gust as high as 24 mph. Chance of precipitation is 90%.
Thursday Night
Partly cloudy, with a low around 22. West wind 5 to 9 mph becoming calm after midnight.
Friday
Sunny, with a high near 39. Calm wind becoming southwest around 5 mph.
Friday Night
Partly cloudy, with a low around 30. South wind 3 to 8 mph. Winds could gust as high as 18 mph.
Saturday
Mostly sunny, with a high near 54. South southwest wind 7 to 11 mph, with gusts as high as 22 mph.
Saturday Night
A slight chance of rain. Mostly cloudy, with a low around 37. South southwest wind around 6 mph becoming north after midnight.
Sunday
A slight chance of rain. Partly sunny, with a high near 53. Northeast wind 5 to 7 mph.
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ABOUT THIS FORECAST

 
Point Forecast:
Vienna IL
 37.42°N 88.88°W
3:16 pm CST Dec 15, 2025
4pm CST Dec 15, 2025-6pm CST Dec 21, 2025
 
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Additional Resources

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