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Niagara High School, WI Weather Forecast
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Niagara High School Weather Forecast
| TODAY | TONIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT |
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| Mostly Cloudy | Mostly Cloudy | Mostly Sunny | Patchy Fog | Sunny | Fog | Partly Cloudy | Fog | Mostly Sunny | Fog | Partly Cloudy | Mostly Cloudy |
| Hi: 60°FHi: 16°C | Lo: 39°FLo: 4°C | Hi: 65°FHi: 18°C | Lo: 39°FLo: 4°C | Hi: 65°FHi: 18°C | Lo: 40°FLo: 4°C | Hi: 69°FHi: 21°C | Lo: 41°FLo: 5°C | Hi: 70°FHi: 21°C | Lo: 41°FLo: 5°C | Hi: 70°FHi: 21°C | Lo: 45°FLo: 7°C |
POP = Probability of Precipitation.
Weather Outlook Updated: 622 AM CDT Mon Sep 21 2026 
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Issued: 625 AM CDT Mon Sep 21 2026
Key Messages
- Hazardous boating and swimming conditions are expected on the Bay and Lake through Tuesday afternoon.
- A quieter and drier weather pattern will settle into the region for the next week. Patchy frost will be possible at times across the northwoods.
Discussion
... Issued at 128 AM CDT Mon Sep 21 2026
The latest RAP analysis and satellite and radar imagery show a split flow pattern across North America, characterized by shortwave energy traversing the central Plains that is undercutting a b...