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Flag Lake, WI 7-Day Weather Forecast
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Flag Lake Weather Forecast
Flag Lake, WI Weather Forecast Date: 518 PM CDT Sat Sep 19 2026
Weather forecast for Flag Lake, WI
Tonight Lo: 49°F Lo: 9°C |
Tonight... Mostly cloudy. A slight chance of showers in the evening. Patchy fog. Lows in the upper 40s. Light and variable wind. Chance of rain 20%. |
Sun Hi: 61°FHi: 16°C Lo: 40°F Lo: 4°C |
Sunday... Mostly cloudy. Highs in the lower 60s. Northeast wind 10 to 15 mph. |
| Mon Hi: 61°FHi: 16°C Lo: 35°F Lo: 2°C |
Monday... Mostly cloudy. Highs in the lower 60s. East wind 5 to 10 mph. |
Tue Hi: 65°FHi: 18°C Lo: 39°F Lo: 4°C |
Tuesday... Mostly sunny. Highs in the middle 60s. |
| Wed Hi: 65°FHi: 18°C Lo: 41°F Lo: 5°C |
Wednesday... Mostly sunny. Highs in the middle 60s. |
Thu Hi: 69°FHi: 21°C Lo: 45°F Lo: 7°C |
Thursday... Partly cloudy. Patchy fog. Highs in the upper 60s. |
Fri Hi: 71°FHi: 22°C Lo: 49°F Lo: 9°C |
Friday... Partly cloudy. Highs in the lower 70s. Lows in the upper 40s. |
| Sat Hi: 71°FHi: 22°C Lo: 49°F Lo: 9°C |
Saturday... Partly cloudy. Highs in the lower 70s. Lows in the upper 40s. |
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