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Oak Brook, IL Weather Forecast

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Oak Brook, IL Weather Forecast

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Oak Brook IL weather - Mostly Clear - 62°F
Mostly Clear
62°F
Updated 3:07 am
Feels Like 61°F
Humidity 86%
Wind N 0 mph
Barometer  30.03 in
Dew Point 58°F
Oak Brook IL weather - Mostly Clear - 17°C
Mostly Clear
17°C
Updated 3:07 am
Feels Like 16°C
Humidity 86%
Wind N 0 km/h
Barometer  101.7 kPa
Dew Point 14°C
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Oak Brook Weather Forecast

REST OF TONIGHT FRIDAY FRIDAY NIGHT SATURDAY SATURDAY NIGHT SUNDAY SUNDAY NIGHT MONDAY MONDAY NIGHT TUESDAY TUESDAY NIGHT WEDNESDAY
Oak Brook, IL Weather - Rest Of Tonight Clear Oak Brook, IL Weather - Friday Mostly Sunny Oak Brook, IL Weather - Friday Night Partly Cloudy Oak Brook, IL Weather - Saturday Partly Cloudy Oak Brook, IL Weather - Saturday Night Partly Cloudy Oak Brook, IL Weather - Sunday Chance Of Showers Oak Brook, IL Weather - Sunday Night Chance Of T-Storm Oak Brook, IL Weather - Monday Chance Of T-Storm Oak Brook, IL Weather - Monday Night Chance Of Showers Oak Brook, IL Weather - Tuesday Chance Of T-Storm Oak Brook, IL Weather - Tuesday Night Showers Likely Oak Brook, IL Weather - Wednesday Showers Likely
Clear Mostly Sunny Partly Cloudy Partly Cloudy Partly Cloudy Chance of Showers Chance of T-Storm Chance of T-Storm Chance of Showers Chance of T-Storm Showers Likely Showers Likely
Lo: 59°FLo: 15°C Hi: 81°FHi: 27°C
 Lo: 65°FLo: 18°C Hi: 85°FHi: 29°C
 Lo: 61°FLo: 16°C Hi: 79°FHi: 26°C
 Lo: 59°FLo: 15°C Hi: 79°FHi: 26°C
 Lo: 69°FLo: 21°C Hi: 81°FHi: 27°C
 Lo: 61°FLo: 16°C Hi: 75°FHi: 24°C
POP: 20% POP: 30% POP: 40% POP: 40% POP: 50% POP: 60% POP: 70%
POP = Probability of Precipitation.
Weather Outlook Updated: 121 AM CDT Fri Sep 11 2026 Oak Brook, IL Weather - WeatherWorld.com

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Oak Brook Forecast Discussion

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Issued: 1204 AM CDT Fri Sep 11 2026

Key Messages

  • Quieter conditions with near to slightly above normal temperatures through the weekend.

Discussion

... Issued at 114 PM CDT Thu Sep 10 2026

Through Sunday Night:

Ongoing rain showers are being observed south of the Kankakee River Valley this afternoon ahead of a mid level wave that is passing over the area. There has been an increase in shower coverage over the area, being located under the right entrance region of a 300 mb jet. However, lapse rates are fairly poor with the better well o...