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

63°F

17°C

Humidity 78%
Wind Speed NE 10 mph
Barometer 30.10 in (1019.5 mb)
Dewpoint 56°F (13°C)
Visibility 10.00 mi
Last update 14 Oct 1:52 pm CDT
Extended Forecast for

Algonquin IL

  • This Afternoon

    This Afternoon: Mostly cloudy, with a steady temperature around 61. Northeast wind around 10 mph, with gusts as high as 15 mph.

    High: 61 °F

    Mostly Cloudy

  • Tonight

    Tonight: A 10 percent chance of showers after 5am. Mostly cloudy, with a low around 54. Northeast wind 5 to 10 mph, with gusts as high as 15 mph.

    Low: 54 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Thursday

    Thursday: Showers, with thunderstorms also possible after 4pm. High near 58. East wind 5 to 10 mph, with gusts as high as 15 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.

    High: 58 °F

    Showers

  • Thursday Night

    Thursday Night: Showers and possibly a thunderstorm before 1am, then a chance of showers between 1am and 4am. Low around 47. Breezy, with an east wind 5 to 10 mph becoming northwest 15 to 20 mph after midnight. Winds could gust as high as 25 mph. Chance of precipitation is 80%.

    Low: 47 °F

    Showers and
    Breezy

  • Friday

    Friday: Showers likely, mainly after 1pm. Mostly cloudy, with a high near 53. Breezy, with a northwest wind around 20 mph, with gusts as high as 35 mph. Chance of precipitation is 60%.

    High: 53 °F

    Showers
    Likely and
    Breezy

  • Friday Night

    Friday Night: Widespread frost, mainly after 5am. Otherwise, partly cloudy, with a low around 34. Breezy.

    Low: 34 °F

    Partly Cloudy
    and Breezy
    then Frost

  • Saturday

    Saturday: Widespread frost, mainly before 7am. Otherwise, sunny, with a high near 57.

    High: 57 °F

    Frost then
    Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 38.

    Low: 38 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 64.

    High: 64 °F

    Sunny

Detailed Forecast

This Afternoon
Mostly cloudy, with a steady temperature around 61. Northeast wind around 10 mph, with gusts as high as 15 mph.
Tonight
A 10 percent chance of showers after 5am. Mostly cloudy, with a low around 54. Northeast wind 5 to 10 mph, with gusts as high as 15 mph.
Thursday
Showers, with thunderstorms also possible after 4pm. High near 58. East wind 5 to 10 mph, with gusts as high as 15 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.
Thursday Night
Showers and possibly a thunderstorm before 1am, then a chance of showers between 1am and 4am. Low around 47. Breezy, with an east wind 5 to 10 mph becoming northwest 15 to 20 mph after midnight. Winds could gust as high as 25 mph. Chance of precipitation is 80%.
Friday
Showers likely, mainly after 1pm. Mostly cloudy, with a high near 53. Breezy, with a northwest wind around 20 mph, with gusts as high as 35 mph. Chance of precipitation is 60%.
Friday Night
Widespread frost, mainly after 5am. Otherwise, partly cloudy, with a low around 34. Breezy.
Saturday
Widespread frost, mainly before 7am. Otherwise, sunny, with a high near 57.
Saturday Night
Clear, with a low around 38.
Sunday
Sunny, with a high near 64.
Sunday Night
Mostly clear, with a low around 42.
Monday
Mostly sunny, with a high near 67.
Monday Night
Partly cloudy, with a low around 44.
Tuesday
Sunny, with a high near 70.
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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:
1:26 pm CDT Oct 14, 2026
Forecast Valid:
2pm CDT Oct 14, 2026-6pm CDT Oct 20, 2026
 
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Additional Resources

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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