Late summer · Weather & things to do
Decorah in August
Decorah edges cooler than July, with highs of 80°F (27°C), lows of 61°F (16°C) and about 4.2 in (106 mm) of rain.
August opens the best stretch on our comfort score, at 81/100 (2nd of 12).
- Avg high
- 80°F (27°C)
- Avg low
- 61°F (16°C)
- Rain
- 4.2 in (106 mm)
- Humidity
- 75%
- Cloud cover
- 51%
- Daylight
- ~13 h 47 min
- Comfort score
- 81/100 · Great
What August feels like
Highs settle around 80°F (27°C), warm enough for short sleeves.
Nights cool to an average low of 61°F (16°C).
Humidity averages 75%, so the air feels sticky and the heat feels stronger than the thermometer says.
Showers are part of the month, adding up to about 4.2 in (106 mm).
Plan around August
August is one of Decorah's best months on the climate data.
- Opens the best-scoring stretch on our comfort score: August & September.
- Comfort improves from 78/100 in July to 81/100.
- August sits inside the May – Oct window our Iowa Driftless & River Towns route recommends.
What to pack for August
- Light, breathable clotheshighs average 80°F
- Sunscreen, sunglasses and a hatstrong sun this month
- Quick-dry fabrics75% average humidity
- Packable rain jacket or umbrellaabout 4.2 in of rain
- Comfortable walking shoesmost picks involve some walking
What to do in Decorah in August
With conditions on your side, the picks below favor time outside.
Seed Savers Exchange Heritage Farm
Heirloom gardens, orchards and trails on an 890-acre farm.
Why now Our curated notes say it's best Jun–Sep.
Dunning's Spring Park
Short walk to a 200-foot waterfall tumbling off a limestone bluff.
Why now August scores 81/100 for comfort, good conditions for being outside.
Trout Run Trail
11-mile paved bike loop past a trout hatchery, bluffs and farmland.
Why now Highs near 80°F and 4.2 in of monthly rain make this an easy outdoor pick.
Vesterheim National Norwegian-American Museum
Large Norwegian-American heritage museum with folk art and historic buildings.
Mabe's Pizza
Family pizza place on Water Street since 1953.
Why now One to do outside while the weather is on your side.
Nearby in August
- Dubuque in August~79 mi · highs 82°F, 4.1 in rain · 1°C (2°F) warmer by day, about as wet
- Minneapolis in August~137 mi · highs 81°F, 4.2 in rain · similar daytime temperatures, about as wet
- Des Moines in August~151 mi · highs 85°F, 4.3 in rain · 3°C (5°F) warmer by day, about as wet
- Milwaukee in August~196 mi · highs 81°F, 3.9 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.
Decorah in August: quick answers
Is August a good time to visit Decorah?
Yes. On the climate data it's one of the best months, scoring 81/100. Expect highs of 80°F (27°C) and 4.2 in (106 mm) of rain. August is inside the May – Oct window our Iowa Driftless & River Towns route recommends.
How hot is Decorah in August?
Average highs are 80°F (27°C) and average lows 61°F (16°C), making it the 2nd-warmest month by daytime highs.
Does it rain a lot in Decorah in August?
Some: about 4.2 in (106 mm) of rain falls across August on average, the 3rd-wettest month of the year. The annual total is about 37.0 in (939 mm).
What should I pack for Decorah in August?
Bring light, breathable clothes (highs average 80°F), sunscreen, sunglasses and a hat (strong sun this month), quick-dry fabrics (75% average humidity), packable rain jacket or umbrella (about 4.2 in of rain) and comfortable walking shoes (most picks involve some walking).
More on Decorah
Routes in season in August
- Iowa Driftless & River Towns May – Oct
Planning Decorah in August?
Plan it together in TripsCircle: one itinerary, one shared packing list and costs split as you go.