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

Chicago / West Chicago, Dupage Airport (KDPA)

Lat: 41.9°NLon: 88.25°WElev: 758ft.

Overcast

39°F

4°C

Humidity 89%
Wind Speed S 3 mph
Barometer 30.17 in (1022.0 mb)
Dewpoint 36°F (2°C)
Visibility 10.00 mi
Last update 9 Jan 9:52 pm CST
Extended Forecast for

Algonquin IL

  • Tonight

    Tonight: A chance of rain between 3am and 5am, then rain likely, possibly mixed with snow. Cloudy, with a steady temperature around 37. Southeast wind around 5 mph becoming south southwest after midnight. Chance of precipitation is 70%. Little or no snow accumulation expected.

    Low: 37 °F

    Mostly Cloudy
    then
    Rain/Snow
    Likely

  • Saturday

    Saturday: Rain and snow, becoming all snow after 10am. Temperature falling to around 30 by 5pm. West wind 5 to 10 mph increasing to 10 to 15 mph in the afternoon. Winds could gust as high as 30 mph. Chance of precipitation is 90%. New snow accumulation of less than one inch possible.

    High: 35 °F⇓

    Rain/Snow
    then Chance
    Snow Showers

  • Saturday Night

    Saturday Night: Scattered snow showers. Mostly cloudy, with a low around 20. Blustery, with a west northwest wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 40%.

    Low: 20 °F

    Scattered
    Snow Showers
    and Blustery

  • Sunday

    Sunday: Mostly sunny, with a high near 31. Blustery, with a northwest wind 10 to 20 mph, with gusts as high as 30 mph.

    High: 31 °F

    Partly Sunny
    and Blustery
    then Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 23. Southwest wind 10 to 15 mph, with gusts as high as 20 mph.

    Low: 23 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 40.

    High: 40 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 31.

    Low: 31 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A chance of rain. Mostly cloudy, with a high near 44.

    High: 44 °F

    Chance Rain

  • Tuesday Night

    Tuesday Night: A chance of rain and snow after midnight. Mostly cloudy, with a low around 27.

    Low: 27 °F

    Mostly Cloudy
    then Chance
    Rain/Snow

Detailed Forecast

Tonight
A chance of rain between 3am and 5am, then rain likely, possibly mixed with snow. Cloudy, with a steady temperature around 37. Southeast wind around 5 mph becoming south southwest after midnight. Chance of precipitation is 70%. Little or no snow accumulation expected.
Saturday
Rain and snow, becoming all snow after 10am. Temperature falling to around 30 by 5pm. West wind 5 to 10 mph increasing to 10 to 15 mph in the afternoon. Winds could gust as high as 30 mph. Chance of precipitation is 90%. New snow accumulation of less than one inch possible.
Saturday Night
Scattered snow showers. Mostly cloudy, with a low around 20. Blustery, with a west northwest wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 40%.
Sunday
Mostly sunny, with a high near 31. Blustery, with a northwest wind 10 to 20 mph, with gusts as high as 30 mph.
Sunday Night
Partly cloudy, with a low around 23. Southwest wind 10 to 15 mph, with gusts as high as 20 mph.
Monday
Mostly sunny, with a high near 40.
Monday Night
Mostly cloudy, with a low around 31.
Tuesday
A chance of rain. Mostly cloudy, with a high near 44.
Tuesday Night
A chance of rain and snow after midnight. Mostly cloudy, with a low around 27.
Wednesday
A chance of snow. Mostly cloudy, with a high near 32.
Wednesday Night
Mostly cloudy, with a low around 16.
Thursday
Partly sunny, with a high near 28.
Thursday Night
A chance of snow. Mostly cloudy, with a low around 20.
Friday
A chance of snow. Mostly cloudy, with a high near 32.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Algonquin IL
 42.19°N 88.27°W
Last Update:
9:11 pm CST Jan 9, 2026
Forecast Valid:
10pm CST Jan 9, 2026-6pm CST Jan 16, 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