Lake John, WI 7-Day Weather Forecast
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Lake John Weather Forecast


Lake John, WI Weather Forecast Date: 1133 PM CDT Tue Oct 13 2026
Weather forecast for Lake John, WI
| Tonight Lo: 45°F Lo: 7°C |
Tonight... Colder. Mostly cloudy. A slight chance of showers in the evening. Lows in the middle 40s. Light and variable wind. Chance of rain 20%. |
| Wed Hi: 59°FHi: 15°C Lo: 35°F Lo: 2°C |
Wednesday... Partly sunny. Highs in the upper 50s. North wind 5 to 10 mph in the morning becoming light and variable. |
| Thu Hi: 59°FHi: 15°C Lo: 35°F Lo: 2°C |
Thursday... Mostly cloudy. Patchy fog in the morning. Showers likely in the afternoon. Highs in the upper 50s. Light and variable wind. Chance of rain 70%. |
| Fri Hi: 51°FHi: 11°C Lo: 29°F Lo: -2°C |
Friday... Blustery. Partly cloudy. Highs in the lower 50s. |
| Sat Hi: 59°FHi: 15°C Lo: 31°F Lo: -1°C |
Saturday... Clear. Lows in the upper 20s. Highs in the upper 50s. |
| Sun Hi: 65°FHi: 18°C Lo: 40°F Lo: 4°C |
Sunday... Clear. Lows in the lower 30s. Highs in the middle 60s. |
| Mon Hi: 65°FHi: 18°C Lo: 35°F Lo: 2°C |
Monday... Mostly sunny. Highs in the middle 60s. |
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