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City of Waterloo, IAWaterloo, IA Weather Forecast
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| TONIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY |
 |  |  | |  |  | | | |  | | |
| Mostly Cloudy | Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Mostly Clear | Sunny | Clear | Mostly Sunny | Chance of T-Storm | Chance of Showers | Chance of T-Storm | Chance of T-Storm |
| Lo: 65°FLo: 18°C | Hi: 85°FHi: 29°C | Lo: 69°FLo: 21°C | Hi: 81°FHi: 27°C | Lo: 59°FLo: 15°C | Hi: 79°FHi: 26°C | Lo: 59°FLo: 15°C | Hi: 81°FHi: 27°C | Lo: 61°FLo: 16°C | Hi: 80°FHi: 27°C | Lo: 59°FLo: 15°C | Hi: 75°FHi: 24°C |
| POP: 50% | POP: 90% | POP: 20% | POP: 60% | POP: 20% | POP: 20% | POP: 40% |
POP = Probability of Precipitation.
Weather Outlook Updated: 222 PM CDT Mon Sep 07 2026 
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Issued: 230 PM CDT Mon Sep 7 2026
Key Messages
- Hot and humid across central and southern Iowa on Tuesday.
- Slow moving cold front will move across Iowa on Tuesday, from northwest in the morning to central Iowa by early evening and southwest Iowa overnight. Showers and thunderstorms with the front will produce pockets of heavy rain along with the potential for gusty winds.
- More seasonal with highs in the low 80s the rest of the week.
Aviation
/18Z TAFS THROUGH 18Z TUESDAY/... Issued at 1248 PM CDT Mon Sep 7 2026
Scattered showers acro...