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.

Fair

66°F

19°C

Humidity 70%
Wind Speed SW 6 mph
Barometer 29.90 in (1012.2 mb)
Dewpoint 56°F (13°C)
Visibility 10.00 mi
Last update 12 Oct 5:52 am CDT
Extended Forecast for

Mount Prospect IL

  • Columbus Day

    Columbus Day: Mostly sunny, with a high near 85. Southwest wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 85 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 70. South southwest wind around 15 mph, with gusts as high as 25 mph.

    Low: 70 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 84. West wind 10 to 15 mph, with gusts as high as 20 mph.

    High: 84 °F

    Sunny

  • Tuesday Night

    Tuesday Night: A chance of showers before 10pm, then a chance of showers and thunderstorms between 10pm and 1am, then showers after 1am. Low around 62. North northeast wind around 5 mph. Chance of precipitation is 80%.

    Low: 62 °F

    Chance
    Showers then
    Showers

  • Wednesday

    Wednesday: A 40 percent chance of showers. Mostly cloudy, with a high near 69. North northeast wind 5 to 10 mph, with gusts as high as 15 mph.

    High: 69 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: A 40 percent chance of showers after 1am. Mostly cloudy, with a low around 55.

    Low: 55 °F

    Mostly Cloudy
    then Chance
    Showers

  • Thursday

    Thursday: Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 67. Chance of precipitation is 70%.

    High: 67 °F

    Showers
    Likely

  • Thursday Night

    Thursday Night: A chance of showers before 1am. Mostly cloudy, with a low around 48.

    Low: 48 °F

    Chance
    Showers

  • Friday

    Friday: Partly sunny, with a high near 58. Breezy.

    High: 58 °F

    Partly Sunny
    and Breezy

Detailed Forecast

Columbus Day
Mostly sunny, with a high near 85. Southwest wind 10 to 15 mph, with gusts as high as 25 mph.
Tonight
Mostly clear, with a low around 70. South southwest wind around 15 mph, with gusts as high as 25 mph.
Tuesday
Sunny, with a high near 84. West wind 10 to 15 mph, with gusts as high as 20 mph.
Tuesday Night
A chance of showers before 10pm, then a chance of showers and thunderstorms between 10pm and 1am, then showers after 1am. Low around 62. North northeast wind around 5 mph. Chance of precipitation is 80%.
Wednesday
A 40 percent chance of showers. Mostly cloudy, with a high near 69. North northeast wind 5 to 10 mph, with gusts as high as 15 mph.
Wednesday Night
A 40 percent chance of showers after 1am. Mostly cloudy, with a low around 55.
Thursday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 67. Chance of precipitation is 70%.
Thursday Night
A chance of showers before 1am. Mostly cloudy, with a low around 48.
Friday
Partly sunny, with a high near 58. Breezy.
Friday Night
Partly cloudy, with a low around 38.
Saturday
Sunny, with a high near 56.
Saturday Night
Mostly clear, with a low around 40.
Sunday
Sunny, with a high near 62.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Mount Prospect IL
 42.06°N 87.93°W
Last Update:
3:56 am CDT Oct 12, 2026
Forecast Valid:
6am CDT Oct 12, 2026-6pm CDT Oct 18, 2026
 
Forecast Discussion
 
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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation