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Indiana Dunes National Park's weather is greatly affected by Lake Michigan and can change quickly. Summers are warm and humid with high temperatures generally in the mid-80ºF's (30ºC) and low temperatures in the mid-60ºF's (18ºC). There are about 15 days per year above 90ºF (32ºC). Warm periods are occasionally interrupted by frontal action descending from Canada. This generally brings days of pleasant, dry weather. Sunshine is abundant in summer.
Local Weather Conditions
For a local weather forecast, choose an Internet weather provider and use the following zip codes for the appropriate section of the park. Links to the National Weather Service are provided.
Know Before You Go!
The Dangers of Shelf Ice
Stay off the shelf ice! Despite its unusual beauty, don't risk your life. Enjoy the view of the shelf ice—from a distance!
Be on the lookout this summer for rip currents on Lake Michigan.
Before your next visit to the beach, learn how to spot a rip current and what to do if you get caught in one. Always check the local beach forecast for any warnings, and exercise caution.
IF CAUGHT IN A RIP CURRENT
♦ Don't fight the current
♦ Know how to swim
Last updated: January 23, 2023