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Waterloo Reservoir Number 1, IL Weather Forecast
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Waterloo Reservoir Number 1 Weather Forecast
| TODAY | TONIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT |
 |  |  |  | | | |  | | | | |
| Chance of T-Storm | Partly Cloudy | Sunny | Mostly Clear | Sunny | Mostly Clear | Mostly Clear | Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Mostly Sunny | Mostly Clear |
| Hi: 99°FHi: 37°C | Lo: 75°FLo: 24°C | Hi: 99°FHi: 37°C | Lo: 75°FLo: 24°C | Hi: 100°FHi: 38°C | Hi: 99°FHi: 37°C Lo: 75°FLo: 24°C | Hi: 99°FHi: 37°C Lo: 75°FLo: 24°C | Lo: 71°FLo: 22°C | Hi: 89°FHi: 32°C | Lo: 69°FLo: 21°C | Hi: 89°FHi: 32°C | Lo: 70°FLo: 21°C |
| POP: 20% | POP: 40% | POP: 40% | POP: 20% |
POP = Probability of Precipitation.
Weather Outlook Updated: 428 AM CDT Thu Aug 13 2026 
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