Lannon, WI Weather Forecast
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Lannon Weather Forecast
| TODAY | TONIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT |
| Sunny | Chance of T-Storm | Mostly Cloudy | Mostly Cloudy | Chance of Showers | Showers Likely | Mostly Sunny | Mostly Clear | Sunny | Clear | Sunny | Partly Cloudy |
| Hi: 75°FHi: 24°C | Lo: 55°FLo: 13°C | Hi: 61°FHi: 16°C | Lo: 50°FLo: 10°C | Hi: 60°FHi: 16°C | Lo: 45°FLo: 7°C | Hi: 55°FHi: 13°C | Lo: 31°FLo: -1°C | Hi: 59°FHi: 15°C | Lo: 39°FLo: 4°C | Hi: 61°FHi: 16°C | Lo: 45°FLo: 7°C |
| POP: 40% | POP: 80% | POP: 60% |
POP = Probability of Precipitation.
Weather Outlook Updated: 731 AM CDT Tue Oct 13 2026 

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Issued: 528 AM CDT Tue Oct 13 2026
Key Messages
- Showers and isolated thunderstorms this evening mainly along & south of I-94.
- Rain likely (60-80% chances) Thursday into Thursday night, with chances for thunderstorms at times.
- Gusty northwest winds of 30-40 mph possible Friday.
- Much colder temperatures are expected next weekend, with frost likely Friday night, and possible Saturday night.
Aviation
... Issued 515 AM CDT Tue Oct 13 2026
Predominantly VFR flight categories prevail regionwide this morning, with the exception of near KSBM ...
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