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O'Brien Park, IL Weather Forecast

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O'Brien Park, IL Weather Forecast

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O'Brien Park IL weather - Clear - 53°F
Clear
53°F
Updated 12:29 am
Feels Like 57°F
Humidity 100%
Wind NE 6 mph
Barometer  30.14 in
Dew Point 53°F
O'Brien Park IL weather - Clear - 12°C
Clear
12°C
Updated 12:29 am
Feels Like 14°C
Humidity 100%
Wind NE 10 km/h
Barometer  102.1 kPa
Dew Point 12°C
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O'Brien Park Weather Forecast

REST OF TONIGHT SUNDAY SUNDAY NIGHT MONDAY MONDAY NIGHT TUESDAY TUESDAY NIGHT WEDNESDAY WEDNESDAY NIGHT THURSDAY THURSDAY NIGHT FRIDAY
O'Brien Park, IL Weather - Rest Of Tonight Partly Cloudy O'Brien Park, IL Weather - Sunday Partly Cloudy O'Brien Park, IL Weather - Sunday Night Partly Cloudy O'Brien Park, IL Weather - Monday Partly Cloudy O'Brien Park, IL Weather - Monday Night Mostly Clear O'Brien Park, IL Weather - Tuesday Partly Cloudy O'Brien Park, IL Weather - Tuesday Night Chance Of T-Storm O'Brien Park, IL Weather - Wednesday Chance Of Showers O'Brien Park, IL Weather - Wednesday Night Chance Of Showers O'Brien Park, IL Weather - Thursday Showers O'Brien Park, IL Weather - Thursday Night Chance Of Showers O'Brien Park, IL Weather - Friday Chance Of Showers
Partly Cloudy Partly Cloudy Partly Cloudy Partly Cloudy Mostly Clear Partly Cloudy Chance of T-Storm Chance of Showers Chance of Showers Showers Chance of Showers Chance of Showers
Lo: 51°FLo: 11°C Hi: 70°FHi: 21°C
 Lo: 51°FLo: 11°C Hi: 71°FHi: 22°C
 Lo: 55°FLo: 13°C Hi: 75°FHi: 24°C
 Lo: 61°FLo: 16°C Hi: 71°FHi: 22°C
 Lo: 61°FLo: 16°C Hi: 71°FHi: 22°C
 Lo: 59°FLo: 15°C Hi: 69°FHi: 21°C
POP: 50% POP: 50% POP: 50% POP: 70% POP: 50% POP: 40%
POP = Probability of Precipitation.
Weather Outlook Updated: 951 PM CDT Sat Sep 26 2026 O'Brien Park, IL Weather - WeatherWorld.com

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O'Brien Park Forecast Discussion

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Issued: 630 PM CDT Sat Sep 26 2026

Key Messages

  • Seasonable temperatures for late September are expected over the next several days.
  • The next chances for widespread rainfall are forecasted to come mid to late next week.

Discussion

... Issued at 203 PM CDT Sat Sep 26 2026

A ridge of high pressure continues to reside over the Great Lakes in between the Nor`easter off the east coast and the broad troughing over the Pacific Northwest and Mountain West regions. This ridge is expected to remain in place through at least Monday which will ke...