Rainbow Park, IL Weather Forecast
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Rainbow Park Weather Forecast
| REST OF TONIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY |
| Mostly Cloudy | Chance of T-Storm | Mostly Clear | Partly Cloudy | Chance of T-Storm | Chance of T-Storm | Chance of Showers | Chance of Showers | Mostly Cloudy | Chance of Showers | Chance of Showers | Chance of Showers |
| Lo: 59°FLo: 15°C | Hi: 69°FHi: 21°C | Lo: 41°FLo: 5°C | Hi: 61°FHi: 16°C | Lo: 51°FLo: 11°C | Hi: 61°FHi: 16°C | Lo: 51°FLo: 11°C | Hi: 69°FHi: 21°C | Lo: 51°FLo: 11°C | Hi: 69°FHi: 21°C | Lo: 55°FLo: 13°C | Hi: 69°FHi: 21°C |
| POP: 50% | POP: 50% | POP: 50% | POP: 20% | POP: 30% | POP: 30% | POP: 40% | POP: 50% |
POP = Probability of Precipitation.
Weather Outlook Updated: 941 PM CDT Wed Oct 28 2026 

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Issued: 640 PM CDT Wed Oct 28 2026
Key Messages
- A cold front will move across the area tomorrow accompanied by isolated to scattered showers (20-40% chance at any given spot). A lightning strike cannot be ruled out (10-15% chance).
- Periods of showers and a few storms are favored Friday night through early Saturday afternoon (>60% chance areawide). Coverage of showers may taper in time for outdoor Halloween activities.
- Generally mild conditions will continue into the first week of November before a pattern change leads to more show...
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