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

Chicago / Wheeling, Pal-Waukee Airport (KPWK)

Lat: 42.12°NLon: 87.9°WElev: 646ft.

Fair

11°F

-12°C

Humidity 64%
Wind Speed S 14 mph
Barometer 30.24 in (1025.6 mb)
Dewpoint 1°F (-17°C)
Visibility 10.00 mi
Wind Chill-5°F (-21°C)
Last update 15 Dec 8:52 am CST
Extended Forecast for

Mount Prospect IL

  • Today

    Today: Mostly cloudy, with a high near 23. Wind chill values as low as -6. Breezy, with a southwest wind 10 to 20 mph, with gusts as high as 30 mph.

    High: 23 °F

    Mostly Cloudy
    and Breezy
    then Mostly
    Cloudy

  • Tonight

    Tonight: Partly cloudy, with a low around 16. West southwest wind around 5 mph, with gusts as high as 10 mph.

    Low: 16 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 35. South southwest wind 5 to 15 mph, with gusts as high as 25 mph.

    High: 35 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 30. Southwest wind 5 to 15 mph, with gusts as high as 25 mph.

    Low: 30 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 38. West wind 5 to 10 mph becoming south in the afternoon. Winds could gust as high as 15 mph.

    High: 38 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: A 50 percent chance of rain after midnight.  Mostly cloudy, with a low around 34.

    Low: 34 °F

    Mostly Cloudy
    then Chance
    Rain

  • Thursday

    Thursday: Rain before noon, then a chance of rain and snow.  High near 46. Breezy.  Chance of precipitation is 80%.

    High: 46 °F

    Breezy. Rain
    then Chance
    Rain/Snow

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 11. Breezy.

    Low: 11 °F

    Mostly Cloudy
    and Breezy
    then Mostly
    Cloudy

  • Friday

    Friday: Partly sunny, with a high near 30.

    High: 30 °F

    Partly Sunny

Detailed Forecast

Today
Mostly cloudy, with a high near 23. Wind chill values as low as -6. Breezy, with a southwest wind 10 to 20 mph, with gusts as high as 30 mph.
Tonight
Partly cloudy, with a low around 16. West southwest wind around 5 mph, with gusts as high as 10 mph.
Tuesday
Partly sunny, with a high near 35. South southwest wind 5 to 15 mph, with gusts as high as 25 mph.
Tuesday Night
Mostly cloudy, with a low around 30. Southwest wind 5 to 15 mph, with gusts as high as 25 mph.
Wednesday
Mostly sunny, with a high near 38. West wind 5 to 10 mph becoming south in the afternoon. Winds could gust as high as 15 mph.
Wednesday Night
A 50 percent chance of rain after midnight. Mostly cloudy, with a low around 34.
Thursday
Rain before noon, then a chance of rain and snow. High near 46. Breezy. Chance of precipitation is 80%.
Thursday Night
Mostly cloudy, with a low around 11. Breezy.
Friday
Partly sunny, with a high near 30.
Friday Night
Mostly cloudy, with a low around 23.
Saturday
Mostly cloudy, with a high near 41.
Saturday Night
Mostly cloudy, with a low around 24.
Sunday
Partly sunny, with a high near 34.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
Mount Prospect IL
 42.06°N 87.93°W
5:56 am CST Dec 15, 2025
9am CST Dec 15, 2025-6pm CST Dec 21, 2025
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database