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Marathon, WI 7-Day Weather Forecast
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Marathon Weather Forecast
Marathon, WI Weather Forecast Date: 1208 PM CDT Fri Sep 04 2026
Weather forecast for Marathon, WI
Today Hi: 85°FHi: 29°C Lo: 65°F Lo: 18°C |
This Afternoon... Humid. Mostly cloudy. Highs in the middle 80s. Light and variable wind. Heat indices to 96. |
Sat Hi: 81°FHi: 27°C Lo: 59°F Lo: 15°C |
Saturday... Humid. Mostly cloudy. Patchy fog in the morning. Highs in the lower 80s. Light and variable wind. |
| Sun Hi: 79°FHi: 26°C Lo: 60°F Lo: 16°C |
Sunday... Partly sunny. Highs in the upper 70s. Light and variable wind. |
Labor Day Hi: 79°FHi: 26°C Lo: 61°F Lo: 16°C |
Labor Day... Mostly cloudy with a 40% chance of showers. Highs in the upper 70s. |
Tue Hi: 79°FHi: 26°C Lo: 59°F Lo: 15°C |
Tuesday... Humid. Showers and a chance of thunderstorms. Highs in the upper 70s. Chance of rain 80%. |
Wed Hi: 80°FHi: 27°C Lo: 59°F Lo: 15°C |
Wednesday... Partly cloudy. Highs around 80. Lows in the upper 50s. |
| Thu Hi: 75°FHi: 24°C |
Thursday... Partly sunny. Highs in the middle 70s. |
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