Niagara, WI Weather Forecast
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Niagara Weather Forecast
| TODAY | TONIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | MONDAY | MONDAY NIGHT | TUESDAY |
| Patchy Fog | Chance of Showers | Patchy Fog | Mostly Cloudy | Showers | Showers | Showers | Mostly Cloudy | Mostly Cloudy | Mostly Cloudy | Partly Cloudy | Partly Cloudy |
| Hi: 71°FHi: 22°C | Lo: 51°FLo: 11°C | Hi: 75°FHi: 24°C | Lo: 49°FLo: 9°C | Hi: 65°FHi: 18°C | Lo: 49°FLo: 9°C | Hi: 65°FHi: 18°C | Hi: 69°FHi: 21°C Lo: 49°FLo: 9°C | Hi: 69°FHi: 21°C Lo: 49°FLo: 9°C | Hi: 69°FHi: 21°C Lo: 49°FLo: 9°C | Hi: 69°FHi: 21°C Lo: 49°FLo: 9°C | Hi: 69°FHi: 21°C Lo: 49°FLo: 9°C |
| POP: 40% | POP: 70% | POP: 80% | POP: 60% |
POP = Probability of Precipitation.
Weather Outlook Updated: 622 AM CDT Wed Sep 16 2026 

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Issued: 611 AM CDT Wed Sep 16 2026
Key Messages
- Light rain chances (40 to 60%) return tonight into Thursday morning, though rainfall totals will remain light at under one tenth of an inch.
- Confidence is increasing for a significant heavy rainfall event Friday afternoon into Saturday, focused across central and east-central Wisconsin.
- Another round of showers and potential thunderstorms towards early next week.
Discussion
... Issued at 119 AM CDT Wed Sep 16 2026
The latest RAP analysis and satellite/radar imagery show high pressure ce...
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