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

21°F

-6°C

Humidity 57%
Wind Speed NW 9 mph
Barometer 29.94 in (1015.0 mb)
Dewpoint 8°F (-13°C)
Visibility 10.00 mi
Wind Chill11°F (-12°C)
Last update 2 Jan 1:52 pm CST
Extended Forecast for

Algonquin IL

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 23. Northwest wind around 5 mph, with gusts as high as 10 mph.

    High: 23 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 16. Northwest wind around 5 mph becoming calm in the evening.

    Low: 16 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly cloudy, with a high near 27. Calm wind becoming west around 5 mph in the afternoon. Winds could gust as high as 10 mph.

    High: 27 °F

    Mostly Cloudy

  • Saturday Night

    Saturday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around 13. Northwest wind around 5 mph, with gusts as high as 10 mph.

    Low: 13 °F

    Decreasing
    Clouds

  • Sunday

    Sunday: Mostly sunny, with a high near 28. Calm wind becoming south around 5 mph in the afternoon. Winds could gust as high as 10 mph.

    High: 28 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: A slight chance of snow, freezing rain, and sleet before midnight. Mostly cloudy, with a low around 24. Chance of precipitation is 20%.

    Low: 24 °F

    Slight Chance
    Wintry Mix
    then Mostly
    Cloudy

  • Monday

    Monday: Partly sunny, with a high near 40.

    High: 40 °F

    Partly Sunny

  • Monday Night

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

    Low: 31 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 45.

    High: 45 °F

    Partly Sunny

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 23. Northwest wind around 5 mph, with gusts as high as 10 mph.
Tonight
Mostly cloudy, with a low around 16. Northwest wind around 5 mph becoming calm in the evening.
Saturday
Mostly cloudy, with a high near 27. Calm wind becoming west around 5 mph in the afternoon. Winds could gust as high as 10 mph.
Saturday Night
Mostly cloudy, then gradually becoming mostly clear, with a low around 13. Northwest wind around 5 mph, with gusts as high as 10 mph.
Sunday
Mostly sunny, with a high near 28. Calm wind becoming south around 5 mph in the afternoon. Winds could gust as high as 10 mph.
Sunday Night
A slight chance of snow, freezing rain, and sleet before midnight. Mostly cloudy, with a low around 24. Chance of precipitation is 20%.
Monday
Partly sunny, with a high near 40.
Monday Night
Mostly cloudy, with a low around 31.
Tuesday
Partly sunny, with a high near 45.
Tuesday Night
Partly cloudy, with a low around 30.
Wednesday
Mostly sunny, with a high near 45.
Wednesday Night
Partly cloudy, with a low around 35.
Thursday
A chance of rain. Mostly cloudy, with a high near 48.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Algonquin IL
 42.17°N 88.3°W
Last Update:
1:35 pm CST Jan 2, 2026
Forecast Valid:
2pm CST Jan 2, 2026-6pm CST Jan 8, 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