National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Chicago / Wheeling, Pal-Waukee Airport (KPWK)

Lat: 42.12°NLon: 87.9°WElev: 646ft.

Overcast

36°F

2°C

Humidity 76%
Wind Speed S 5 mph
Barometer 30.15 in (1021.5 mb)
Dewpoint 29°F (-2°C)
Visibility 10.00 mi
Wind Chill32°F (0°C)
Last update 3 Mar 9:52 am CST
Extended Forecast for

Mount Prospect IL

  • Today

    Today: Mostly cloudy, with a high near 40. Calm wind becoming northeast around 5 mph in the afternoon.

    High: 40 °F

    Mostly Cloudy

  • Tonight

    Tonight: Mostly cloudy, with a low around 32. East northeast wind around 5 mph becoming north in the evening. Winds could gust as high as 10 mph.

    Low: 32 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A 20 percent chance of showers after 3pm. Partly sunny, with a high near 42. East wind 5 to 10 mph, with gusts as high as 15 mph.

    High: 42 °F

    Partly Sunny
    then Slight
    Chance
    Showers

  • Wednesday Night

    Wednesday Night: Showers likely, mainly after midnight. Cloudy, with a low around 39. East northeast wind around 5 mph. Chance of precipitation is 60%.

    Low: 39 °F

    Slight Chance
    Showers then
    Showers
    Likely

  • Thursday

    Thursday: Showers likely and possibly a thunderstorm. Cloudy, with a high near 46. Northeast wind 5 to 10 mph, with gusts as high as 15 mph. Chance of precipitation is 70%.

    High: 46 °F

    Showers
    Likely

  • Thursday Night

    Thursday Night: A 20 percent chance of showers before midnight. Cloudy, with a low around 40.

    Low: 40 °F

    Slight Chance
    Showers then
    Cloudy

  • Friday

    Friday: Showers likely, then showers and possibly a thunderstorm after noon. High near 62. Chance of precipitation is 80%.

    High: 62 °F

    Showers

  • Friday Night

    Friday Night: Showers and possibly a thunderstorm. Mostly cloudy, with a low around 53.

    Low: 53 °F

    Showers

  • Saturday

    Saturday: A chance of showers before noon. Mostly cloudy, with a high near 63.

    High: 63 °F

    Chance
    Showers then
    Partly Sunny

Detailed Forecast

Today
Mostly cloudy, with a high near 40. Calm wind becoming northeast around 5 mph in the afternoon.
Tonight
Mostly cloudy, with a low around 32. East northeast wind around 5 mph becoming north in the evening. Winds could gust as high as 10 mph.
Wednesday
A 20 percent chance of showers after 3pm. Partly sunny, with a high near 42. East wind 5 to 10 mph, with gusts as high as 15 mph.
Wednesday Night
Showers likely, mainly after midnight. Cloudy, with a low around 39. East northeast wind around 5 mph. Chance of precipitation is 60%.
Thursday
Showers likely and possibly a thunderstorm. Cloudy, with a high near 46. Northeast wind 5 to 10 mph, with gusts as high as 15 mph. Chance of precipitation is 70%.
Thursday Night
A 20 percent chance of showers before midnight. Cloudy, with a low around 40.
Friday
Showers likely, then showers and possibly a thunderstorm after noon. High near 62. Chance of precipitation is 80%.
Friday Night
Showers and possibly a thunderstorm. Mostly cloudy, with a low around 53.
Saturday
A chance of showers before noon. Mostly cloudy, with a high near 63.
Saturday Night
Partly cloudy, with a low around 38.
Sunday
Sunny, with a high near 61.
Sunday Night
Mostly clear, with a low around 43.
Monday
Mostly sunny, with a high near 62.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Mount Prospect IL
 42.09°N 87.92°W
Last Update:
10:11 am CST Mar 3, 2026
Forecast Valid:
10am CST Mar 3, 2026-6pm CDT Mar 9, 2026
 
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