Mid-summer · Weather & things to do
Indiana Dunes in July
Indiana Dunes's warmest month brings highs averaging 83°F (28°C), lows of 66°F (19°C) and about 4.0 in (101 mm) of rain.
Our comfort score puts it mid-table at 79/100, 6th of 12.
- Avg high
- 83°F (28°C)
- Avg low
- 66°F (19°C)
- Rain
- 4.0 in (101 mm)
- Humidity
- 74%
- Cloud cover
- 48%
- Daylight
- ~14 h 44 min
- Comfort score
- 79/100 · Great
What July feels like
Highs settle around 83°F (28°C), warm enough for short sleeves most of the day.
Lows average 66°F (19°C).
Some rain is likely, about 4.0 in (101 mm) in the month, so pack for a shower or two.
Plan around July
July sits mid-table; the best months are September.
- Inside the wettest three-month stretch, May – July.
- Comfort holds steady from June (79 → 79/100).
- July sits inside the May – Oct window our Indiana & Ohio City-Nature Loop recommends.
What to pack for July
- Light, breathable clotheshighs average 83°F
- Sunscreen, sunglasses and a hatstrong sun this month
- Packable rain jacket or umbrellaa shower or two is likely
- Comfortable walking shoesmost places below are best reached on foot or with short walks
What to do in Indiana Dunes in July
With conditions on your side, the picks below favor time outside.
West Beach
Lifeguarded national park beach with views of the Chicago skyline across Lake Michigan.
Why now Our curated notes say it's best summer afternoon.
Dune Succession Trail
Boardwalk and stair climb showing beach-to-forest dune stages, starting at West Beach.
Why now July scores 79/100 for comfort, good conditions for being outside.
3 Dune Challenge
1.5-mile climb over the state park's three tallest dunes, 552 vertical feet in sand.
Why now Highs near 83°F and 4.0 in of monthly rain make this an easy outdoor pick.
Chellberg Farm and Bailly Homestead
Restored 1880s Swedish farmstead and fur-trader homestead linked by trails.
Shoreline Brewery
Michigan City brewpub with house beers and pub food near the lakefront.
Nearby in July
- Chicago in July~34 mi · highs 77°F, 3.7 in rain · 3°C (6°F) cooler by day, about as wet
- Holland in July~92 mi · highs 75°F, 3.0 in rain · 4°C (8°F) cooler by day, drier
- Milwaukee in July~105 mi · highs 83°F, 3.7 in rain · similar daytime temperatures, about as wet
- Broad Ripple in July~132 mi · highs 84°F, 4.4 in rain · similar daytime temperatures, about as wet
NASA POWER 2001–2025 monthly averages on a ~50 km grid. Comfort scores weigh temperature, rain, humidity and cloud: see how we score each month. Check a forecast before you go.
Indiana Dunes in July: quick answers
Is July a good time to visit Indiana Dunes?
It's middling, scoring 79/100. The best months are September, at up to 88. Expect highs of 83°F (28°C) and 4.0 in (101 mm) of rain. July is inside the May – Oct window our Indiana & Ohio City-Nature Loop recommends.
How hot is Indiana Dunes in July?
Average highs are 83°F (28°C) and average lows 66°F (19°C), making it the warmest month by daytime highs.
Does it rain a lot in Indiana Dunes in July?
Some: about 4.0 in (101 mm) of rain falls across July on average, the 3rd-wettest month of the year. The annual total is about 38.7 in (984 mm).
What should I pack for Indiana Dunes in July?
Bring light, breathable clothes (highs average 83°F), sunscreen, sunglasses and a hat (strong sun this month), packable rain jacket or umbrella (a shower or two is likely) and comfortable walking shoes (most places below are best reached on foot or with short walks).
More on Indiana Dunes
Routes in season in July
- Indiana & Ohio City-Nature Loop May – Oct
Planning Indiana Dunes in July?
Share this July plan with your group, poll everyone on dates and keep the packing list in one place.