Weather in Marathon, IA
Updated 2026-08-11 10:30 local time · ZIP codes 50565
Sunny
No government weather alerts were returned for this location at the latest update.
Next hours
78°10% rain86°7% rain88°5% rain90°4% rain91°3% rain91°3% rain91°2% rain91°2% rain90°2% rain87°2% rain84°4% rain
80°7% rain3-day weather forecast
Weather details
Sunrise, sunset and moon
Weather insights for today
Rain chance stays relatively low over the next 12 hours (up to 10%).
It feels like 82°F with winds near 9 mph.
84°F, 4% rain chance and 11 mph wind.
Visibility is around 6 mi; gusts may reach 23 mph.
Current temperature is 78°F, wind 9 mph, rain chance up to 10%.
UV index is 3.
Marathon weather today
Sunny and 78°F in Marathon, IA. Today's high is 91°F with a 36% rain chance. Winds are around 9 mph with gusts near 10 mph. Relative humidity is 83%, pressure is 29.82 inHg, and visibility is about 6 miles.
Tonight and tomorrow in Marathon
Sunrise is at 06:21 AM and sunset is at 08:28 PM. Tomorrow's forecast calls for Sunny with a high near 87°F and a low near 67°F. The maximum rain chance is 70%.