Grand Island weather in September 2026

Q: How hot is it in Grand Island in September?

Daytime temperatures usually reach 24°C in Grand Island in September, falling to 12°C at night.

Q: How sunny is it in Grand Island in September?

There are normally 8 hours of bright sunshine each day in Grand Island in September - that's 65% of daylight hours.

Q: Does it rain in Grand Island in September?

There are usually 9 days with some rain in Grand Island in September and the average monthly rainfall is 93mm.

Expect daytime maximum temperatures of 77°F in Grand Island, Nebraska in September based on long-term weather averages. There are 9 hours of sunshine per day on average with typically 2.8 inches of rainfall in the month.

77
77°F max day temperature
9
9 hours of sunshine per day
8
8 days with some rainfall
52
52°F min night temperature
12
12 hours of daylight per day
0
No heat & humidity
2.8
2.8 inches of monthly rainfall
6
6 (High) UV index

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The September weather guide for Nebraska (Grand Island) shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

Metric (°C) | Imperial (°F)

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How hot is it in Grand Island in September?

Daytime temperatures usually reach 75°F in Grand Island in September, falling to 54°F at night.

How sunny is it in Grand Island in September?

There are normally 8 hours of bright sunshine each day in Grand Island in September - that's 65% of daylight hours.

Does it rain in Grand Island in September?

There are usually 9 days with some rain in Grand Island in September and the average monthly rainfall is 3.7 inches.

Grand Island September sunrise & sunset times

Browse the sunrise and sunset times for Grand Island in September 2026. Select a month to view Grand Island sunrise and sunset times for the next 12 months.

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