Late summer · Weather & things to do
Dubuque in August
Little changes in Dubuque from July: highs stay near 82°F (28°C), lows near 62°F (17°C), and about 4.1 in (103 mm) of rain falls.
August opens the best stretch on our comfort score, at 79/100 (3rd of 12).
- Avg high
- 82°F (28°C)
- Avg low
- 62°F (17°C)
- Rain
- 4.1 in (103 mm)
- Humidity
- 74%
- Cloud cover
- 50%
- Daylight
- ~13 h 44 min
- Comfort score
- 79/100 · Great
What August feels like
Warm afternoons near 82°F (28°C) make long days outdoors easy.
Nights cool to an average low of 62°F (17°C).
Showers are part of the month, adding up to about 4.1 in (103 mm).
Plan around August
August is one of Dubuque's best months on the climate data.
- Opens the best-scoring stretch on our comfort score: May and August – October.
- Comfort improves from 74/100 in July to 79/100.
- August sits inside the May – Oct window our Iowa Driftless & River Towns route recommends.
What to pack for August
- Light, breathable clotheshighs average 82°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 Dubuque in August
With conditions on your side, the picks below favor time outside.
Field of Dreams Movie Site
The baseball field and farmhouse from the 1989 film, 25 miles west.
Why now Our curated notes say it's best summer.
Fenelon Place Elevator
Short 1882 cable railway up the bluff, with views over three states.
Why now Our curated notes say it's best Apr–Nov.
Breitbach's Country Dining
Iowa's oldest bar and restaurant (1852), known for its buffet and pies.
L.May Eatery
Candlelit Main Street restaurant serving gourmet comfort food since 2007.
Why now August scores 79/100 for comfort, good conditions for being outside.
Eagle Point Park
Bluff-top park with stone shelters overlooking Lock and Dam 11.
Why now Highs near 82°F and 4.1 in of monthly rain make this an easy outdoor pick.
Nearby in August
- Decorah in August~79 mi · highs 80°F, 4.2 in rain · 1°C (2°F) cooler by day, about as wet
- Milwaukee in August~145 mi · highs 81°F, 3.9 in rain · similar daytime temperatures, about as wet
- Chicago in August~161 mi · highs 77°F, 4.1 in rain · 3°C (5°F) cooler by day, about as wet
- Des Moines in August~164 mi · highs 85°F, 4.3 in rain · 2°C (3°F) warmer by day, 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.
Dubuque in August: quick answers
Is August a good time to visit Dubuque?
Yes. On the climate data it's one of the best months, scoring 79/100. Expect highs of 82°F (28°C) and 4.1 in (103 mm) of rain. August is inside the May – Oct window our Iowa Driftless & River Towns route recommends.
How hot is Dubuque in August?
Average highs are 82°F (28°C) and average lows 62°F (17°C), making it the 2nd-warmest month by daytime highs.
Does it rain a lot in Dubuque in August?
Some: about 4.1 in (103 mm) of rain falls across August on average, the 4th-wettest month of the year. The annual total is about 37.8 in (959 mm).
What should I pack for Dubuque in August?
Bring light, breathable clothes (highs average 82°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 Dubuque
Routes in season in August
- Iowa Driftless & River Towns May – Oct
Planning Dubuque in August?
Plan it together in TripsCircle: one itinerary, one shared packing list and costs split as you go.