Weather on August 29 at Isle Royale
Isle Royale National Park
Based on 50 years of data from Houghton, MI
Planning Your Visit
August 29th in Isle Royale National Park (via Houghton, MI) typically brings pleasant summer weather, with average highs around 72°F and lows near 54°F. Over 50 years of records, the warmest August 29th was in 1991 (80°F average), while the coldest was 1976 (50°F) — a 30°F range across recorded history. Rain or other precipitation has occurred on about 38% of August 29th dates historically, with the wettest August 29th recording 3" of rain. The last decade has been 1.5°F cooler on this date compared to 20-30 years ago.
The last decade has been 1.5°F cooler on this date compared to 20-30 years ago.
Planning for August 29th in Isle Royale? Great weather for outdoor activities. Consider bringing rain gear or an umbrella.
Year by Year History
| Year | High | Low | Precip | Snow |
|---|---|---|---|---|
| 2025 | 65°F | 38°F | 0" | -- |
| 2024 | 71°F | 48°F | 0" | -- |
| 2023 | 64°F | 43°F | 0.36" | -- |
| 2022 | 77°F | 64°F | 0.41" | -- |
| 2021 | 76°F | 65°F | 1.17" | -- |
| 2020 | 67°F | 53°F | 0.2" | -- |
| 2019 | 66°F | 50°F | 0.36" | -- |
| 2018 | 61°F | 44°F | 0" | -- |
| 2017 | 73°F | 52°F | 0" | -- |
| 2016 | 82°F | 60°F | 0.03" | -- |
| 2015 | 74°F | 60°F | 0.03" | -- |
| 2014 | 65°F | 56°F | 0.58" | -- |
| 2013 | 84°F | 62°F | 0.53" | -- |
| 2012 | 80°F | 48°F | 0" | -- |
| 2011 | 78°F | 51°F | 0" | -- |
| 2010 | 89°F | 58°F | 0" | -- |
| 2009 | 54°F | 47°F | 3" | -- |
| 2008 | 75°F | 54°F | 0" | -- |
| 2007 | 69°F | 51°F | 0" | -- |
| 2006 | 66°F | 51°F | 0" | -- |
| 2005 | 63°F | 52°F | 0.1" | -- |
| 2004 | 58°F | 46°F | 0.08" | -- |
| 2003 | 73°F | 55°F | 0" | 0" |
| 2002 | 78°F | 58°F | 0" | 0" |
| 2001 | 85°F | 51°F | 0" | 0" |
| 2000 | 80°F | 60°F | 0.03" | 0" |
| 1999 | 61°F | 49°F | 0" | 0" |
| 1998 | 79°F | 58°F | 0" | 0" |
| 1997 | 66°F | 51°F | 0" | 0" |
| 1996 | 76°F | 48°F | 0" | 0" |
| 1995 | 78°F | 56°F | 0" | 0" |
| 1994 | 66°F | 47°F | 0" | 0" |
| 1993 | 78°F | 54°F | 0" | 0" |
| 1992 | 70°F | 47°F | 0.38" | 0" |
| 1991 | 92°F | 69°F | 0" | 0" |
| 1990 | 73°F | 58°F | 0" | 0" |
| 1989 | 69°F | 60°F | 0" | 0" |
| 1988 | 61°F | 51°F | 0" | 0" |
| 1983 | 78°F | 64°F | 0.36" | 0" |
| 1981 | 74°F | 61°F | 0.94" | 0" |
| 1980 | 78°F | 60°F | 0" | 0" |
| 1979 | 78°F | 61°F | 0.64" | 0" |
| 1978 | 72°F | 55°F | 0.13" | 0" |
| 1977 | 69°F | 49°F | 0" | 0" |
| 1976 | 58°F | 42°F | 0" | 0" |
| 1975 | 66°F | 52°F | 0" | 0" |
| 1974 | 60°F | 50°F | 0.03" | 0" |
| 1973 | 81°F | 71°F | 0" | 0" |
| 1972 | 77°F | 59°F | 0" | 0" |
| 1971 | 81°F | 63°F | 0" | 0" |