Island Park (ID) Weather & Climate: Best Time to Visit

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

Climate overview of Island Park

The climate in Island Park, Idaho, United States of America, is marked by large temperature swings across the seasons, ranging from 27°C (81°F) in July to -2°C (28°F) in January.

The city receives around 684 mm (27 in) of rain/snowfall per year. It experiences a distinct dry season from July to August. December is the wettest month and July the driest.

Island Park Weather by Month

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

Monthly Temperature in Island Park

In Island Park, temperatures differ significantly between summer and winter months. On average, daytime temperatures range from a comfortable 27°C (81°F) in July to a very cold -2°C (28°F) in January.

Nighttime temperatures range from 7°C (45°F) in July to -15°C (5°F) in January.

Check out our detailed temperature page for more information.

Temperature ranges by month

Rainfall in Island Park

On average, Island Park receives a reasonable amount of rain/snowfall, with an annual precipitation of 684 mm (27 in). The seasons in Island Park bring significant changes in precipitation. The wettest month, December, receives high snowfall, with an average of 104 mm (4.1 in) of precipitation. This snowfall is distributed across 15 snowy days.

In contrast, the driest month, July, experiences much less rainfall, totaling 22 mm (0.9 in) over 6 rainy days. These distinct seasonal differences provide diverse experiences throughout the year. For more details, please visit our Island Park Precipitation page.

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

Best Time to Visit Island Park

The best time to visit Island Park is during June, July, August and September, when the weather provides comfortable temperatures between 21°C (70°F) and 27°C (80°F). With rainfall of 22 mm (0.9 in) to 47 mm (1.9 in), you can expect pleasant weather during your visit in these months.

Need help choosing your next travel destination? We offer a specialized tool that matches you with locations based on your weather preferences. Explore destinations that suit your climate preferences.

Frequently asked questions about the climate in Island Park

What is the best time to visit Island Park?

June, July, August and September typically offer the most optimal weather in Island Park. In contrast, January, February, March, April, November and December tend to have less optimal conditions. Island Park has a distinct dry season from July to August.

What temperatures can I expect in Island Park?

Daytime highs range from -2°C (28°F) in January to 27°C (81°F) in July. Nighttime lows range from -15°C (5°F) to 7°C (45°F). Temperatures vary considerably through the year.

How much rain does Island Park get?

Annual rainfall is around 684 mm (27 in). December is the wettest month with 104 mm (4.1 in), while July is the driest with 22 mm (0.9 in). In the coldest months, precipitation may fall as snow.

Island Park 3-Day Forecast

Island Park (ID) 3-Day Forecast

Island Park on the map

Island Park is highlighted — select any city to see its climate.

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