18 Reservoir, WI 7-Day Weather Forecast
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18 Reservoir Weather Forecast


18 Reservoir, WI Weather Forecast Date: 517 PM CDT Fri Aug 14 2026
Weather forecast for 18 Reservoir, WI
| Tonight Lo: 61°F Lo: 16°C |
Tonight... Mostly cloudy. Isolated showers this evening, then a chance of showers and thunderstorms after midnight. Lows in the lower 60s. East winds 5 to 10 mph. Chance of rain 40%. |
| Sat Hi: 79°FHi: 26°C Lo: 65°F Lo: 18°C |
Saturday... Mostly cloudy. A chance of showers and thunderstorms in the morning. More humid with highs in the upper 70s. East winds 5 to 10 mph. Chance of rain 50%. |
| Sun Hi: 80°FHi: 27°C Lo: 59°F Lo: 15°C |
Sunday... Mostly sunny. Highs around 80. Northwest winds 10 to 15 mph. |
| Mon Hi: 80°FHi: 27°C Lo: 59°F Lo: 15°C |
Monday... Mostly sunny. Highs around 80. |
| Tue Hi: 80°FHi: 27°C Lo: 60°F Lo: 16°C |
Tuesday... Partly sunny in the morning, then becoming mostly cloudy. A chance of showers and thunderstorms. Highs around 80. Chance of rain 50%. |
| Wed Hi: 75°FHi: 24°C Lo: 55°F Lo: 13°C |
Wednesday... Partly sunny with a chance of showers. Highs in the mid 70s. Chance of rain 30%. |
| Thu Hi: 75°FHi: 24°C Lo: 55°F Lo: 13°C |
Thursday... Partly cloudy. Lows in the mid 50s. Highs in the mid 70s. |
| Fri Hi: 75°FHi: 24°C Lo: 55°F Lo: 13°C |
Friday... Partly cloudy. Lows in the mid 50s. Highs in the mid 70s. |
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