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September 2025 Climate Summary

Hazardous Weather Conditions

Hazardous Weather Outlook

Current conditions at

Chicago / West Chicago, Dupage Airport (KDPA)

Lat: 41.9°NLon: 88.25°WElev: 758ft.

Light Rain

60°F

16°C

Humidity	90%
Wind Speed	N 10 mph
Barometer	30.03 in (1016.5 mb)
Dewpoint	57°F (14°C)
Visibility	10.00 mi
Last update	7 Oct 5:52 am CDT

More Information:

Local Forecast Office More Local Wx 3 Day History Hourly Weather Forecast

Extended Forecast for

Dundee IL

Today
High: 66 °F
Chance
Showers then
Mostly Sunny
Tonight
Low: 43 °F
Mostly Clear
Wednesday
High: 63 °F
Sunny
Wednesday Night
Low: 41 °F
Mostly Clear
Thursday
High: 64 °F
Sunny
Thursday Night
Low: 42 °F
Mostly Clear
Friday
High: 67 °F
Mostly Sunny
Friday Night
Low: 49 °F
Partly Cloudy
Saturday
High: 73 °F
Mostly Sunny

Detailed Forecast

Today

A chance of showers and thunderstorms before 7am, then a slight chance of showers between 7am and 8am. Cloudy through mid morning, then gradual clearing, with a high near 66. North wind around 10 mph, with gusts as high as 15 mph. Chance of precipitation is 30%.

Tonight

Mostly clear, with a low around 43. North northwest wind around 5 mph.

Wednesday

Sunny, with a high near 63. North wind 5 to 10 mph.

Wednesday Night

Mostly clear, with a low around 41. East northeast wind around 5 mph becoming calm in the evening.

Thursday

Sunny, with a high near 64. Light southeast wind increasing to 5 to 10 mph in the morning.

Thursday Night

Mostly clear, with a low around 42.

Friday

Mostly sunny, with a high near 67.