Marathon, IA 7-Day Weather Forecast
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Marathon Weather Forecast


Marathon, IA Weather Forecast Date: 1140 PM CST Mon Mar 02 2026
Weather forecast for Marathon, IA
| Tonight Lo: 35°F Lo: 2°C |
Tonight... Mostly cloudy. A chance of sprinkles and flurries late this evening, then a slight chance of drizzle. Not as cool. Near steady temperature in the mid 30s. Southeast winds 5 to 10 mph. |
| Tue Hi: 49°FHi: 9°C Lo: 31°F Lo: -1°C |
Tuesday... Mostly cloudy with a chance of sprinkles with a slight chance of drizzle in the morning, then partly sunny in the afternoon. Highs in the upper 40s. East winds around 5 mph. |
| Wed Hi: 51°FHi: 11°C Lo: 31°F Lo: -1°C |
Wednesday... Partly sunny. A chance of sprinkles in the morning. Highs in the lower 50s. Southeast winds 5 to 10 mph. |
| Thu Hi: 61°FHi: 16°C Lo: 45°F Lo: 7°C |
Thursday... Sunny. Not as cool with highs in the lower 60s. |
| Fri Hi: 65°FHi: 18°C Lo: 31°F Lo: -1°C |
Friday... Rain with a slight chance of thunderstorms in the morning, then rain likely in the afternoon. Highs in the mid 60s. Chance of rain 90%. |
| Sat Hi: 51°FHi: 11°C Lo: 35°F Lo: 2°C |
Saturday... Partly sunny in the morning, then clearing. Cooler with highs in the lower 50s. |
| Sun Hi: 65°FHi: 18°C Lo: 35°F Lo: 2°C |
Sunday... Mostly sunny. Not as cool with highs in the mid 60s. |
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