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Middle Fork River County Forest Preserve, IL Weather Forecast
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Middle Fork River County Forest Preserve Weather Forecast
| TODAY | TONIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | FRIDAY | SATURDAY |
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| Chance of T-Storm | Chance of T-Storm | Mostly Sunny | Mostly Clear | Mostly Sunny | Chance of Showers | Chance of Showers | Partly Cloudy | Partly Cloudy | Partly Cloudy | Sunny |
| Hi: 85°FHi: 29°C | Lo: 69°FLo: 21°C | Hi: 81°FHi: 27°C | Lo: 61°FLo: 16°C | Hi: 81°FHi: 27°C | Hi: 79°FHi: 26°C Lo: 65°FLo: 18°C | Hi: 79°FHi: 26°C Lo: 65°FLo: 18°C | Hi: 79°FHi: 26°C Lo: 60°FLo: 16°C | Hi: 79°FHi: 26°C Lo: 60°FLo: 16°C | Hi: 79°FHi: 26°C Lo: 60°FLo: 16°C | Hi: 80°FHi: 27°C |
| POP: 50% | POP: 20% | POP: 50% | POP: 50% |
POP = Probability of Precipitation.
Weather Outlook Updated: 637 AM CDT Sun Aug 16 2026 
Middle Fork River County Forest Preserve Radar Loop
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Middle Fork River County Forest Preserve Weather Map
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Middle Fork River County Forest Preserve Forecast Discussion
Issued: 556 AM CDT Sun Aug 16 2026
Key Messages
- Flooding continues across portions of central IL in a corridor from Fulton and southern Knox County to Vermilion County due to 4 to 7 inches of rain that fell yesterday and additional rain moving through this morning.
- Additional clusters of thunderstorms are forecast again late this afternoon into the overnight hours. SPC has a slight risk (level 2 of 5) south of I-70 and a marginal risk for areas east of the IL River Valley for damaging winds.
- Cooler an...