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Omalley Quadrangle, IL Weather Forecast
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Omalley Quadrangle Weather Forecast
| LATE THIS AFTERNOON | TONIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT |
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| Mostly Cloudy | Mostly Cloudy | Partly Cloudy | Partly Cloudy | Partly Cloudy | Partly Cloudy | Partly Cloudy | Mostly Cloudy | Mostly Cloudy | Partly Cloudy | Partly Cloudy | Mostly Clear |
| Hi: 61°FHi: 16°C | Lo: 59°FLo: 15°C | Hi: 69°FHi: 21°C | Lo: 59°FLo: 15°C | Hi: 65°FHi: 18°C | Lo: 55°FLo: 13°C | Hi: 65°FHi: 18°C | Lo: 55°FLo: 13°C | Hi: 69°FHi: 21°C | Lo: 55°FLo: 13°C | Hi: 69°FHi: 21°C | Lo: 59°FLo: 15°C |
POP = Probability of Precipitation.
Weather Outlook Updated: 331 PM CDT Wed Sep 23 2026 
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Issued: 124 PM CDT Wed Sep 23 2026
Key Messages
- Below average temperatures expected through the weekend before temperatures turn more seasonable early next week.
Discussion
... Issued at 124 PM CDT Wed Sep 23 2026
An upper low continues to spiral over the Ohio River Valley which has maintained a large cloud shield across much of the region. In addition to the clouds, there have been some isolated pockets of drizzle and light showers in OH and IN. While a stray sprinkle cannot be fully ruled out in our northwest IN or far eastern IL c...