Waterloo, IN Weather Forecast
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Waterloo Weather Forecast
| TODAY | TONIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT |
| Chance of T-Storm | Chance of T-Storm | Mostly Cloudy | Clearing | Sunny | Mostly Clear | Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Chance of T-Storm |
| Hi: 85°FHi: 29°C | Lo: 65°FLo: 18°C | Hi: 79°FHi: 26°C | Lo: 51°FLo: 11°C | Hi: 79°FHi: 26°C | Lo: 59°FLo: 15°C | Hi: 81°FHi: 27°C | Lo: 65°FLo: 18°C | Hi: 81°FHi: 27°C | Lo: 65°FLo: 18°C | Hi: 85°FHi: 29°C | Lo: 69°FLo: 21°C |
| POP: 40% | POP: 20% | POP: 30% | POP: 30% | POP: 20% | POP: 30% | POP: 30% | POP: 30% |
POP = Probability of Precipitation.
Weather Outlook Updated: 413 AM EDT Wed Sep 09 2026 

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Issued: 430 AM EDT Wed Sep 9 2026
Key Messages
- A warm and more humid airmass will be in place into early Thursday. Cloud cover and precipitation may cause large variations in temperatures Wednesday.
- There is a 30% to 60% chance of showers and thunderstorms Wednesday through early Thursday morning. There is a marginal risk for isolated severe storms between 3-9 pm ET this eve, mainly along and south of US 24. Heavy rain, lightning, and isolated damaging wind gusts are the primary threats in the strongest storms
- There is a moderate...
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