Upper Post Lake, WI 7-Day Weather Forecast
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Upper Post Lake Weather Forecast


Upper Post Lake, WI Weather Forecast Date: 1047 PM CDT Mon Sep 14 2026
Weather forecast for Upper Post Lake, WI
| Tonight Lo: 55°F Lo: 13°C |
Tonight... Blustery. Warmer. Showers and a chance of thunderstorms. Patchy fog after midnight. Lows in the middle 50s. South wind 15 to 25 mph Decreasing to 10 to 15 mph after midnight. Chance of rain near 100%. |
| Tue Hi: 71°FHi: 22°C Lo: 45°F Lo: 7°C |
Tuesday... Breezy. Mostly cloudy in the morning then becoming partly cloudy. Patchy fog in the morning. Highs in the lower 70s. Southwest wind 10 to 15 mph shifting to the west 15 to 25 mph in the afternoon. Gusts up to 35 mph. |
| Wed Hi: 69°FHi: 21°C Lo: 51°F Lo: 11°C |
Wednesday... Partly cloudy. Highs in the upper 60s. Light and variable wind becoming southeast around 5 mph in the afternoon. |
| Thu Hi: 71°FHi: 22°C Lo: 51°F Lo: 11°C |
Thursday... Partly sunny. Highs in the lower 70s. |
| Fri Hi: 69°FHi: 21°C Lo: 55°F Lo: 13°C |
Friday... Mostly cloudy with a 50% chance of showers. Highs in the upper 60s. |
| Sat Hi: 70°FHi: 21°C Lo: 51°F Lo: 11°C |
Saturday... Showers likely. Highs around 70. Chance of rain 60%. |
| Sun Hi: 69°FHi: 21°C Lo: 49°F Lo: 9°C |
Sunday... Mostly cloudy with a 30% chance of showers. Highs in the upper 60s. |
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