Significant and Catastrophic Flooding in the Pacific Northwest; Very Cold Temperatures in the Northern Plains

The atmospheric river over the Pacific Northwest will begin to subside today, but lingering rainfall will exacerbate ongoing catastrophic major river flooding, and landslides will continue across portions of western Washington and northwest Oregon for several days. Arctic air will plummet southward into the Northern Plains today, bringing cold air in the single digits to the region by Friday. Read More >

Hazardous Weather Conditions

Current conditions at

Chicago, Chicago Midway Airport (KMDW)

Lat: 41.78°NLon: 87.76°WElev: 617ft.

Overcast

25°F

-4°C

Humidity 66%
Wind Speed NW 7 mph
Barometer 30.01 in (1017.6 mb)
Dewpoint 15°F (-9°C)
Visibility 10.00 mi
Wind Chill17°F (-8°C)
Last update 11 Dec 7:53 am CST
Extended Forecast for

Berwyn IL

  • Today

    Today: Mostly cloudy, with a high near 28. West northwest wind around 5 mph becoming southwest in the afternoon. Winds could gust as high as 10 mph.

    High: 28 °F

    Mostly Cloudy

  • Tonight

    Tonight: A chance of snow between 7pm and 3am, then a slight chance of snow showers after 3am.  Cloudy, with a low around 24. South wind around 5 mph becoming north after midnight.  Chance of precipitation is 40%.

    Low: 24 °F

    Chance Snow

  • Friday

    Friday: A 30 percent chance of snow showers, mainly after noon.  Mostly cloudy, with a high near 30. North wind 5 to 10 mph becoming west in the afternoon.

    High: 30 °F

    Chance Snow
    Showers

  • Friday Night

    Friday Night: A 20 percent chance of snow showers before midnight.  Mostly cloudy, with a low around 8. Wind chill values as low as -6. West northwest wind 10 to 15 mph, with gusts as high as 20 mph.

    Low: 8 °F

    Slight Chance
    Snow Showers
    then Cloudy

  • Saturday

    Saturday: A 50 percent chance of snow.  Mostly cloudy, with a high near 13. West northwest wind 10 to 15 mph, with gusts as high as 20 mph.

    High: 13 °F

    Chance Snow

  • Saturday Night

    Saturday Night: A 30 percent chance of snow before midnight.  Partly cloudy, with a low around -3.

    Low: -3 °F

    Chance Snow
    then Partly
    Cloudy

  • Sunday

    Sunday: Sunny, with a high near 11.

    High: 11 °F

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 1.

    Low: 1 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 23.

    High: 23 °F

    Mostly Sunny

Detailed Forecast

Today
Mostly cloudy, with a high near 28. West northwest wind around 5 mph becoming southwest in the afternoon. Winds could gust as high as 10 mph.
Tonight
A chance of snow between 7pm and 3am, then a slight chance of snow showers after 3am. Cloudy, with a low around 24. South wind around 5 mph becoming north after midnight. Chance of precipitation is 40%.
Friday
A 30 percent chance of snow showers, mainly after noon. Mostly cloudy, with a high near 30. North wind 5 to 10 mph becoming west in the afternoon.
Friday Night
A 20 percent chance of snow showers before midnight. Mostly cloudy, with a low around 8. Wind chill values as low as -6. West northwest wind 10 to 15 mph, with gusts as high as 20 mph.
Saturday
A 50 percent chance of snow. Mostly cloudy, with a high near 13. West northwest wind 10 to 15 mph, with gusts as high as 20 mph.
Saturday Night
A 30 percent chance of snow before midnight. Partly cloudy, with a low around -3.
Sunday
Sunny, with a high near 11.
Sunday Night
Partly cloudy, with a low around 1.
Monday
Mostly sunny, with a high near 23.
Monday Night
Mostly cloudy, with a low around 16.
Tuesday
Mostly sunny, with a high near 34.
Tuesday Night
Mostly cloudy, with a low around 29.
Wednesday
Mostly cloudy, with a high near 39.
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ABOUT THIS FORECAST

 
Point Forecast:
Berwyn IL
 41.84°N 87.8°W
4:01 am CST Dec 11, 2025
8am CST Dec 11, 2025-6pm CST Dec 17, 2025
 
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Additional Resources

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Hourly Weather Forecast

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