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Shagbark Golf Course, IL Weather Forecast
1262 N 640 E Rd, Onarga, IL 60955 (815)268-7308 Golf Course Type: Public Holes: 9Quick Weather Clicks
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Shagbark Golf Course Weather Forecast
| TODAY | TONIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT |
 |  |  |  | | | |  | | | | |
| Chance of T-Storm | Chance of T-Storm | Partly Cloudy | Mostly Clear | Partly Cloudy | Chance of T-Storm | Chance of T-Storm | Partly Cloudy | Partly Cloudy | Partly Cloudy | Partly Cloudy | Partly Cloudy |
| Hi: 85°FHi: 29°C | Lo: 69°FLo: 21°C | Hi: 80°FHi: 27°C | Lo: 61°FLo: 16°C | Hi: 81°FHi: 27°C | Lo: 65°FLo: 18°C | Hi: 79°FHi: 26°C | Lo: 59°FLo: 15°C | Hi: 75°FHi: 24°C | Lo: 59°FLo: 15°C | Hi: 79°FHi: 26°C | Lo: 60°FLo: 16°C |
| POP: 50% | POP: 20% | POP: 70% | POP: 50% |
POP = Probability of Precipitation.
Weather Outlook Updated: 806 AM CDT Sun Aug 16 2026 
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Shagbark Golf Course Forecast Discussion
Issued: 706 AM CDT Sun Aug 16 2026
Key Messages
- Areas of fog, some locally dense, may linger through mid morning, mainly west and northwest of Chicago.
- Isolated to scattered thunderstorms may develop along a cold front this afternoon and evening, mainly east of I-55.
- Drier weather is in store Monday into Tuesday before storm chances return midweek.
Discussion
... Issued at 144 AM CDT Sun Aug 16 2026
A shortwave trough continues to pivot across northern IL and has lead to the development of a cluster of t...