Weather in Grafton, IA
Updated 2026-08-11 11:15 local time · ZIP codes 50440
Overcast
No government weather alerts were returned for this location at the latest update.
Next hours
75°10% rain
86°9% rain87°7% rain87°7% rain85°7% rain
85°9% rain84°8% rain84°7% rain82°8% rain80°10% rain
78°11% rain76°12% 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 12%).
It feels like 79°F with winds near 12 mph.
82°F, 8% rain chance and 7 mph wind.
Visibility is around 10 mi; gusts may reach 16 mph.
Current temperature is 75°F, wind 12 mph, rain chance up to 12%.
UV index is 5. Sunscreen and sunglasses are sensible for longer outdoor time.
Grafton weather today
Overcast and 75°F in Grafton, IA. Today's high is 87°F with a 21% rain chance. Winds are around 12 mph with gusts near 16 mph. Relative humidity is 100%, pressure is 29.88 inHg, and visibility is about 10 miles.
Tonight and tomorrow in Grafton
Sunrise is at 06:13 AM and sunset is at 08:21 PM. Tomorrow's forecast calls for Sunny with a high near 82°F and a low near 63°F. The maximum rain chance is 36%.