October in Grand Island averages a daily high of 18.8°C with nights around 4.5°C. Expect roughly 6.2 wet days totalling 46.6mm. Comfortable conditions for being outdoors all day.
Across the year, the best time to visit Grand Island is September–October.
Based on GRAND ISLAND CENTRAL NE REGIONAL AIRPORT, NE US (4.7km), 1995–2024. 30 years of October data.