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River to River Trail, IL Weather Forecast
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River to River Trail Weather Forecast
| OVERNIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SUNDAY | SUNDAY NIGHT |
 | |  |  |  |  | |  | | | |  |
| Patchy Fog | Patchy Fog | Mostly Clear | Chance of Showers | Chance of T-Storm | Chance of T-Storm | Mostly Clear | Mostly Clear | Clear | Mostly Clear | Mostly Clear | Partly Cloudy |
| Lo: 65°FLo: 18°C | Hi: 89°FHi: 32°C | Lo: 69°FLo: 21°C | Hi: 89°FHi: 32°C | Lo: 69°FLo: 21°C | Hi: 85°FHi: 29°C | Hi: 85°FHi: 29°C Lo: 65°FLo: 18°C | Hi: 85°FHi: 29°C Lo: 65°FLo: 18°C | Lo: 65°FLo: 18°C | Hi: 89°FHi: 32°C Lo: 65°FLo: 18°C | Hi: 89°FHi: 32°C Lo: 65°FLo: 18°C | Hi: 85°FHi: 29°C Lo: 65°FLo: 18°C |
| POP: 40% | POP: 80% | POP: 50% |
POP = Probability of Precipitation.
Weather Outlook Updated: 1219 AM CDT Tue Aug 18 2026 
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River to River Trail Forecast Discussion
Issued: 1055 PM CDT Mon Aug 17 2026
Key Messages
- Seasonable temperatures expected this week as welcome relief from the hot weather.
- Another cold front`s approach and passage brings our next storm chances, including strong to severe storm chances, Wednesday evening.
Discussion
... Issued at 138 PM CDT Mon Aug 17 2026
More seasonable temperatures are here this week with relief from the hot weather. Sfc high pressure moves overhead by Tuesday morning resulting in a pleasant day with mid 60s dewpoints and cle...