Upper Island Lake, WI 7-Day Night Weather Forecast
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Upper Island Lake, WI Weather Forecast


Upper Island Lake, WI Weather Forecast Date: 122 PM CDT Mon Aug 03 2026
The area/counties/county of: Northern Oconto County, including the cities of: Mountain, Lakewood, and Townsend.or toggle through each period.
This Afternoon... Mostly sunny. Highs in the lower 80s. Southwest wind 5 to 10 mph.
Tonight... Clear. Lows around 60. Light and variable wind becoming southwest around 5 mph after midnight.
Tuesday... Humid. Partly cloudy in the morning, then mostly cloudy with a chance of showers and a slight chance of thunderstorms in the afternoon. Highs in the lower 80s. Southwest wind 5 to 10 mph. Chance of rain 30%.
Tuesday Night... Mostly cloudy with a 30% chance of showers. Lows in the middle 50s. Light and variable wind.
Wednesday... Partly sunny. Highs in the upper 70s. Light and variable wind.
Wednesday Night... Partly cloudy. Patchy fog. Lows in the lower 50s.
Thursday... Clear. Highs in the middle 80s. Lows in the upper 50s.
Friday... Clear. Highs in the middle 80s. Lows in the upper 50s.
Friday Night... Mostly clear. Lows in the lower 60s. Highs in the middle 80s.
Saturday... Mostly clear. Lows in the lower 60s. Highs in the middle 80s.
Saturday Night... Partly cloudy. A 40% chance of showers and thunderstorms. Lows in the lower 60s. Highs in the middle 80s.
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