Weather World
City of Waterloo, IAWaterloo, IA 7-Day Weather Forecast
Quick Weather Clicks
Settings
Sun & Moon
Waterloo Weather Forecast
Waterloo, IA Weather Forecast Date: 128 PM CDT Tue Sep 08 2026
Weather forecast for Waterloo, IA
Today Hi: 81°FHi: 27°C Lo: 69°F Lo: 21°C |
This Afternoon... Partly sunny with a chance of showers and thunderstorms. Highs in the lower 80s. South winds 5 to 10 mph. Chance of rain 50%. |
| Wed Hi: 81°FHi: 27°C Lo: 59°F Lo: 15°C |
Wednesday... Patchy fog in the morning. Mostly cloudy with a slight chance of showers and thunderstorms in the morning, then mostly sunny in the afternoon. Humid with highs in the lower 80s. West winds 5 to 10 mph. Chance of rain 20%. |
Thu Hi: 79°FHi: 26°C Lo: 55°F Lo: 13°C |
Thursday... Sunny. Highs in the upper 70s. North winds around 5 mph. |
| Fri Hi: 81°FHi: 27°C Lo: 65°F Lo: 18°C |
Friday... Sunny. Highs in the lower 80s. |
| Sat Hi: 79°FHi: 26°C Lo: 55°F Lo: 13°C |
Saturday... Partly sunny with a chance of showers with a slight chance of thunderstorms. Highs in the upper 70s. Chance of rain 50%. |
| Sun Hi: 71°FHi: 22°C Lo: 59°F Lo: 15°C |
Sunday... Partly sunny with a chance of showers. A slight chance of thunderstorms in the afternoon. Highs in the lower 70s. Chance of rain 40%. |
| Mon Hi: 79°FHi: 26°C |
Monday... A slight chance of thunderstorms. Showers likely. Highs in the upper 70s. Chance of rain 70%. |
Waterloo Radar Loop
Use the map search tool if you want to place a location marker on the radar map...