Weather in Marathon, IA
Updated 2026-09-26 09:00 local time · ZIP codes 50565
Light rain
No government weather alerts were returned for this location at the latest update.
Next hours
55°81% rain55°79% rain
55°33% rain58°27% rain
58°53% rain
61°17% rain
63°15% rain
63°20% rain62°30% rain60°28% rain59°41% rain
58°54% rain3-day weather forecast
Weather details
Sunrise, sunset and moon
Key weather changes ahead
Weather insights for today
Rain chance reaches about 81% over the next 12 hours.
It feels like 49°F with winds near 15 mph.
63°F, 15% rain chance and 17 mph wind.
Visibility is around 5 mi; gusts may reach 31 mph.
Current temperature is 55°F, wind 15 mph, rain chance up to 81%.
UV index is 0.
Local weather characteristics in Marathon
Iowa has a continental climate with hot summers, cold winters, strong winds and a notable spring and summer severe-thunderstorm season.
Marathon is part of the Midwest weather region. The forecast point is near 42.86°N latitude and 94.98°W longitude. Local temperature, wind and precipitation can still differ from nearby places, especially where terrain, coastlines or urban development create small-scale weather changes.
Marathon weather today
Light rain and 55°F in Marathon, IA. Today's high is 63°F with a 91% rain chance. Winds are around 15 mph with gusts near 30 mph. Relative humidity is 98%, pressure is 30.05 inHg, and visibility is about 5 miles.
Tonight and tomorrow in Marathon
Sunrise is at 07:11 AM and sunset is at 07:10 PM. Tomorrow's forecast calls for Overcast with a high near 63°F and a low near 57°F. The maximum rain chance is 70%.