Weather on August 26 at Isle Royale
Isle Royale National Park
Based on 50 years of data from Houghton, MI
Planning Your Visit
August 26th in Isle Royale National Park (via Houghton, MI) typically brings pleasant summer weather, with average highs around 75°F and lows near 57°F. Over 50 years of records, the warmest August 26th was in 1991 (80°F average), while the coldest was 2015 (51°F) — a 29°F range across recorded history. Rain or other precipitation has occurred on about 42% of August 26th dates historically, with the wettest August 26th recording 2.06" of rain. The last decade has been 5.9°F cooler on this date compared to 20-30 years ago.
The last decade has been 5.9°F cooler on this date compared to 20-30 years ago.
Planning for August 26th 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 | 68°F | 41°F | 0" | -- |
| 2024 | 90°F | 68°F | 0.41" | -- |
| 2023 | 66°F | 41°F | 0" | -- |
| 2022 | 76°F | 56°F | 0" | -- |
| 2021 | 75°F | 56°F | 0" | -- |
| 2020 | 77°F | 62°F | 0.53" | -- |
| 2019 | 75°F | 55°F | 0.76" | -- |
| 2018 | 79°F | 57°F | 1.73" | -- |
| 2017 | 68°F | 48°F | 0.08" | -- |
| 2016 | 66°F | 50°F | 0" | -- |
| 2015 | 61°F | 42°F | 0" | -- |
| 2014 | 62°F | 56°F | 0" | -- |
| 2013 | 83°F | 68°F | 2.06" | -- |
| 2012 | 79°F | 60°F | 0.1" | -- |
| 2011 | 80°F | 53°F | 0.03" | -- |
| 2010 | 70°F | 45°F | 0" | -- |
| 2009 | 65°F | 49°F | 0" | -- |
| 2008 | 76°F | 49°F | 0" | -- |
| 2007 | 78°F | 47°F | 0" | -- |
| 2006 | 67°F | 56°F | 0.05" | -- |
| 2005 | 78°F | 60°F | 0" | -- |
| 2004 | 76°F | 60°F | 0.08" | -- |
| 2003 | 80°F | 63°F | 0.15" | 0" |
| 2002 | 78°F | 63°F | 0" | 0" |
| 2001 | 80°F | 66°F | 0" | 0" |
| 2000 | 90°F | 62°F | 0.23" | 0" |
| 1999 | 84°F | 60°F | 0" | 0" |
| 1998 | 79°F | 58°F | 0" | 0" |
| 1997 | 82°F | 59°F | 0.13" | 0" |
| 1996 | 70°F | 49°F | 0" | 0" |
| 1995 | 74°F | 62°F | 0.2" | 0" |
| 1994 | 86°F | 60°F | 1.7" | 0" |
| 1993 | 90°F | 67°F | 0.03" | 0" |
| 1992 | 60°F | 50°F | 0" | 0" |
| 1991 | 88°F | 72°F | 0.25" | 0" |
| 1990 | 78°F | 63°F | 0" | 0" |
| 1989 | 79°F | 58°F | 0" | 0" |
| 1988 | 69°F | 53°F | 0" | 0" |
| 1983 | 84°F | 69°F | 0" | 0" |
| 1981 | 73°F | 60°F | 0" | 0" |
| 1980 | 67°F | 56°F | 0" | 0" |
| 1979 | 76°F | 53°F | 0.66" | 0" |
| 1978 | 70°F | 56°F | 0" | 0" |
| 1977 | 77°F | 56°F | 1.4" | 0" |
| 1976 | 82°F | 65°F | 0" | 0" |
| 1975 | 67°F | 55°F | 0" | 0" |
| 1974 | 69°F | 56°F | 0.51" | 0" |
| 1973 | 80°F | 67°F | 0" | 0" |
| 1972 | 65°F | 53°F | 0.03" | 0" |
| 1971 | 66°F | 45°F | 0" | 0" |