Grand Island (NE) Weather & Climate: Best Time to Visit

Average temperatures, rainfall, sunshine and the best time to visit Grand Island.

Climate overview of Grand Island

Grand Island, Nebraska, United States of America, experiences significant temperature variation throughout the year. Summers bring daytime highs of 31°C (88°F) in July, while winters cool to 2°C (36°F) in January.

Annual rain/snowfall is moderate at around 750 mm (30 in), with June being the wettest month. The city also has a distinct dry season from November to March, with very warm summers and cold winters.

Grand Island Weather by Month

Pick a month to see the average temperature, rainfall and sunshine in Grand Island - and find the best time to visit.

Monthly Temperature in Grand Island

Depending on the time of the year, temperatures range from very warm to chilly in Grand Island. Average daytime temperatures reach a very warm 31°C (88°F) in July. In January, the coolest month of the year, temperatures drop to a chilly 2°C (36°F).

At night, temperatures range from around 18°C (64°F) in July to -9°C (16°F) in January.

Check out our detailed temperature page for more information.

Temperature ranges by month

Rainfall in Grand Island

Generally, Grand Island has a moderate amount of precipitation, averaging 750 mm (30 in) of rain/snowfall annually. Grand Island can be quite wet during June, receiving approximately 133 mm (5.2 in) of precipitation over 13 rainy days.

In contrast, during the driest month (January), you will experience much drier conditions, with 9.2 mm (0.4 in) of precipitation spread across 5 snowy days. For more details, please visit our Grand Island Precipitation page.

The mean monthly precipitation over the year, including rain, hail, and snow

Best Time to Visit Grand Island

Conditions in Grand Island are generally most comfortable in September. They are typically least comfortable in January, February and December.

Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.

  • Best overall: September
  • Warmest weather: July and August
  • Fewest rainy days: January and November
  • Wettest months: April, May, June, July and August, when rainfall is highest.
  • Seasonal pattern: A distinct dry season from November to March, with very warm summers and cold winters
  • Coldest conditions: January, with freezing nights around -9°C (16°F).

Frequently asked questions about the climate in Grand Island

What is the best time to visit Grand Island?

September typically offers the most optimal weather in Grand Island. In contrast, January, February and December tend to have less optimal conditions. Grand Island has a distinct dry season from November to March, with very warm summers and cold winters.

What temperatures can I expect in Grand Island?

Daytime highs range from 2°C (36°F) in January to 31°C (88°F) in July. Nighttime lows range from -9°C (16°F) to 18°C (64°F). Temperatures vary considerably through the year.

How much rain does Grand Island get?

Annual rainfall is around 750 mm (30 in). June is the wettest month with 133 mm (5.2 in), while January is the driest with 9.2 mm (0.4 in).

Grand Island 3-Day Forecast

Grand Island on the map

Grand Island is highlighted - select any city to see its climate.

Popular this month

Where to go in September - average daytime high across popular destinations.

Bucket list

Need travel inspiration? Check out our bucket list articles and be inspired.