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.

Fair

26°F

-3°C

Humidity 81%
Wind Speed SW 17 mph
Barometer 30.19 in (1023.1 mb)
Dewpoint 21°F (-6°C)
Visibility 10.00 mi
Wind Chill13°F (-11°C)
Last update 12 Jan 2:52 am CST
Extended Forecast for

Algonquin IL

  • Overnight

    Overnight: Partly cloudy, with a low around 25. Southwest wind around 15 mph, with gusts as high as 30 mph.

    Low: 25 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 42. West southwest wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 42 °F

    Sunny

  • Monday Night

    Monday Night: Increasing clouds, with a low around 32. Southwest wind 10 to 15 mph, with gusts as high as 20 mph.

    Low: 32 °F

    Increasing
    Clouds

  • Tuesday

    Tuesday: A slight chance of sprinkles after noon. Partly sunny, with a high near 48. West wind around 15 mph, with gusts as high as 30 mph.

    High: 48 °F

    Slight Chance
    Sprinkles

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 31. West northwest wind 10 to 15 mph, with gusts as high as 25 mph.

    Low: 31 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Snow showers likely, mainly before noon. Mostly cloudy, with a high near 33. Breezy. Chance of precipitation is 70%.

    High: 33 °F

    Breezy. Snow
    Showers
    Likely then
    Chance Snow
    Showers

  • Wednesday Night

    Wednesday Night: A 20 percent chance of snow showers. Mostly cloudy, with a low around 13. Blustery.

    Low: 13 °F

    Slight Chance
    Snow Showers
    and Blustery

  • Thursday

    Thursday: Mostly sunny, with a high near 25.

    High: 25 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: A chance of snow. Mostly cloudy, with a low around 20.

    Low: 20 °F

    Chance Snow

Detailed Forecast

Overnight
Partly cloudy, with a low around 25. Southwest wind around 15 mph, with gusts as high as 30 mph.
Monday
Sunny, with a high near 42. West southwest wind 10 to 15 mph, with gusts as high as 25 mph.
Monday Night
Increasing clouds, with a low around 32. Southwest wind 10 to 15 mph, with gusts as high as 20 mph.
Tuesday
A slight chance of sprinkles after noon. Partly sunny, with a high near 48. West wind around 15 mph, with gusts as high as 30 mph.
Tuesday Night
Mostly cloudy, with a low around 31. West northwest wind 10 to 15 mph, with gusts as high as 25 mph.
Wednesday
Snow showers likely, mainly before noon. Mostly cloudy, with a high near 33. Breezy. Chance of precipitation is 70%.
Wednesday Night
A 20 percent chance of snow showers. Mostly cloudy, with a low around 13. Blustery.
Thursday
Mostly sunny, with a high near 25.
Thursday Night
A chance of snow. Mostly cloudy, with a low around 20.
Friday
Scattered snow showers. Cloudy, with a high near 32.
Friday Night
Scattered snow showers. Mostly cloudy, with a low around 17.
Saturday
A chance of snow showers. Mostly cloudy, with a high near 19.
Saturday Night
Mostly cloudy, with a low around 4.
Sunday
Partly sunny, with a high near 16.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Algonquin IL
 42.17°N 88.3°W
Last Update:
2:31 am CST Jan 12, 2026
Forecast Valid:
3am CST Jan 12, 2026-6pm CST Jan 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