Mason, WI Weather Forecast
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Mason Weather Forecast
| TONIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY |
| Partly Cloudy | Mostly Sunny | Patchy Fog | Patchy Fog | Partly Cloudy | Mostly Sunny | Chance of Showers | Chance of Showers | Chance of Showers | Partly Sunny | Partly Cloudy | Partly Sunny |
| Lo: 45°FLo: 7°C | Hi: 69°FHi: 21°C | Lo: 39°FLo: 4°C | Hi: 69°FHi: 21°C | Lo: 49°FLo: 9°C | Hi: 69°FHi: 21°C | Lo: 55°FLo: 13°C | Hi: 70°FHi: 21°C | Lo: 45°FLo: 7°C | Hi: 55°FHi: 13°C | Lo: 35°FLo: 2°C | Hi: 49°FHi: 9°C |
| POP: 20% | POP: 20% | POP: 40% |
POP = Probability of Precipitation.
Weather Outlook Updated: 606 PM CDT Tue Oct 20 2026 

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Issued: 639 PM CDT Tue Oct 20 2026
Key Messages
- Above normal temperatures through Saturday.
- Next chance of rain (20-40%) is Friday afternoon into Saturday.
- Near-normal temperatures return Sunday.
Discussion
... Issued at 121 PM CDT Tue Oct 20 2026
SYNOPTIC:
A complex split-flow regime was found aloft over the North American continent early this afternoon. A cutoff low was positioned off the coast of California with a broad relatively flat ridge farther east across the Canadian Prairies into Ontario. A northern jet stream with several ...
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