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

Fire Weather Concerns and Severe Weather

Dry and breezy conditions will bring elevated to critical fire weather conditions across portions of the northern and central High Plains through this weekend, where fuels remain largely receptive. Severe thunderstorms and heavy rainfall are possible from the Plains into the Upper Midwest, as well as in the Ohio Valley and portions of the Mid-Atlantic through this weekend. Read More >

Current conditions at

Chicago / Wheeling, Pal-Waukee Airport (KPWK)

Lat: 42.12°NLon: 87.9°WElev: 646ft.

Fair

65°F

18°C

Humidity 84%
Wind Speed SE 5 mph
Barometer 29.90 in (1012.2 mb)
Dewpoint 60°F (16°C)
Visibility 10.00 mi
Last update 12 Sep 12:52 am CDT
Extended Forecast for

Mount Prospect IL

  • Overnight

    Overnight: Partly cloudy, with a low around 64. South wind around 5 mph, with gusts as high as 10 mph.

    Low: 64 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 86. South southwest wind 5 to 10 mph becoming west in the afternoon. Winds could gust as high as 20 mph.

    High: 86 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 60. North northwest wind around 5 mph.

    Low: 60 °F

    Partly Cloudy

  • Sunday

    Sunday: A 40 percent chance of showers after 1pm. Increasing clouds, with a high near 73. North northwest wind 5 to 10 mph, with gusts as high as 15 mph.

    High: 73 °F

    Mostly Sunny
    then Chance
    Showers

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 54. North wind around 5 mph.

    Low: 54 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 73.

    High: 73 °F

    Mostly Sunny

  • Monday Night

    Monday Night: A 30 percent chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 66.

    Low: 66 °F

    Mostly Cloudy
    then Chance
    T-storms

  • Tuesday

    Tuesday: A chance of showers, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 83.

    High: 83 °F

    Chance
    Showers then
    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Showers likely, then showers and possibly a thunderstorm after 1am. Cloudy, with a low around 63.

    Low: 63 °F

    Showers

Detailed Forecast

Overnight
Partly cloudy, with a low around 64. South wind around 5 mph, with gusts as high as 10 mph.
Saturday
Mostly sunny, with a high near 86. South southwest wind 5 to 10 mph becoming west in the afternoon. Winds could gust as high as 20 mph.
Saturday Night
Partly cloudy, with a low around 60. North northwest wind around 5 mph.
Sunday
A 40 percent chance of showers after 1pm. Increasing clouds, with a high near 73. North northwest wind 5 to 10 mph, with gusts as high as 15 mph.
Sunday Night
Partly cloudy, with a low around 54. North wind around 5 mph.
Monday
Mostly sunny, with a high near 73.
Monday Night
A 30 percent chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 66.
Tuesday
A chance of showers, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 83.
Tuesday Night
Showers likely, then showers and possibly a thunderstorm after 1am. Cloudy, with a low around 63.
Wednesday
Showers, with thunderstorms also possible after 1pm. Cloudy, with a high near 76.
Wednesday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 63.
Thursday
A chance of showers. Mostly cloudy, with a high near 76.
Thursday Night
Mostly cloudy, with a low around 59.
Friday
Mostly sunny, with a high near 76.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Mount Prospect IL
 42.06°N 87.96°W
Last Update:
1:21 am CDT Sep 12, 2026
Forecast Valid:
1am CDT Sep 12, 2026-6pm CDT Sep 18, 2026
 
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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