Weather on August 5 at Isle Royale
Isle Royale National Park
Based on 50 years of data from Houghton, MI
Planning Your Visit
August 5th in Isle Royale National Park (via Houghton, MI) typically brings pleasant summer weather, with average highs around 76°F and lows near 55°F. Over 50 years of records, the warmest August 5th was in 2001 (81°F average), while the coldest was 1990 (54°F) — a 27°F range across recorded history. Rain or other precipitation has occurred on about 20% of August 5th dates historically, with the wettest August 5th recording 1.85" of rain. Temperatures on this date have remained relatively stable over the past several decades.
Temperatures on this date have remained relatively stable over the past several decades.
Planning for August 5th in Isle Royale? Great weather for outdoor activities.
Year by Year History
| Year | High | Low | Precip | Snow |
|---|---|---|---|---|
| 2025 | 78°F | 62°F | 0" | -- |
| 2024 | 74°F | 53°F | 0" | -- |
| 2023 | 77°F | 52°F | 0" | -- |
| 2022 | 86°F | 54°F | 0" | -- |
| 2021 | 79°F | 65°F | 0.15" | -- |
| 2020 | 75°F | 47°F | 0" | -- |
| 2019 | 78°F | 62°F | 1.85" | -- |
| 2018 | 85°F | 68°F | 0" | -- |
| 2017 | 74°F | 50°F | 0" | -- |
| 2016 | 75°F | 64°F | 0" | -- |
| 2015 | 72°F | 50°F | 0" | -- |
| 2014 | 76°F | 47°F | 0" | -- |
| 2013 | 67°F | 45°F | 0" | -- |
| 2012 | 70°F | 56°F | 0.03" | -- |
| 2011 | 86°F | 64°F | 0" | -- |
| 2010 | 72°F | 55°F | 0" | -- |
| 2009 | 68°F | 48°F | 0" | -- |
| 2008 | 78°F | 58°F | 0" | -- |
| 2007 | 77°F | 54°F | 0" | -- |
| 2006 | 79°F | 57°F | 0" | -- |
| 2005 | 76°F | 54°F | 0" | -- |
| 2004 | 69°F | 51°F | 0" | -- |
| 2003 | 78°F | 61°F | 0" | 0" |
| 2002 | 75°F | 60°F | 0" | 0" |
| 2001 | 94°F | 69°F | 0" | 0" |
| 2000 | 82°F | 55°F | 0" | 0" |
| 1999 | 76°F | 50°F | 0" | 0" |
| 1998 | 80°F | 59°F | 0" | 0" |
| 1997 | 78°F | 52°F | 0" | 0" |
| 1996 | 84°F | 68°F | 1.52" | 0" |
| 1995 | 77°F | 61°F | 0.03" | 0" |
| 1994 | 70°F | 47°F | 0" | 0" |
| 1993 | 70°F | 52°F | 1.22" | 0" |
| 1992 | 75°F | 52°F | 0" | 0" |
| 1991 | 72°F | 50°F | 0" | 0" |
| 1990 | 60°F | 49°F | 0" | 0" |
| 1989 | 80°F | 47°F | 0.2" | 0" |
| 1988 | 68°F | 61°F | 0.03" | 0" |
| 1983 | 86°F | 60°F | 0" | 0" |
| 1981 | 78°F | 59°F | 0" | 0" |
| 1980 | 75°F | 60°F | 0" | 0" |
| 1979 | 70°F | 53°F | 0" | 0" |
| 1978 | 82°F | 55°F | 0" | 0" |
| 1977 | 70°F | 56°F | 0" | 0" |
| 1976 | 64°F | 48°F | 0" | 0" |
| 1975 | 66°F | 50°F | 0.05" | 0" |
| 1974 | 75°F | 54°F | 0" | 0" |
| 1973 | 80°F | 66°F | 0" | 0" |
| 1972 | 77°F | 51°F | 0.97" | 0" |
| 1971 | 74°F | 44°F | 0" | 0" |