Weather on October 27 at Isle Royale
Isle Royale National Park
Based on 50 years of data from Houghton, MI
Planning Your Visit
October 27th in Isle Royale National Park (via Houghton, MI) typically brings chilly fall weather, with average highs around 49°F and lows near 34°F. Over 50 years of records, the warmest October 27th was in 1989 (63°F average), while the coldest was 1976 (29°F) — a 34°F range across recorded history. Precipitation has occurred on 42% of recorded October 27th dates, with snow falling 6% of the time. 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 October 27th in Isle Royale? Bring layers as temperatures can vary throughout the day. Consider bringing rain gear or an umbrella.
Year by Year History
| Year | High | Low | Precip | Snow |
|---|---|---|---|---|
| 2025 | 57°F | 32°F | 0" | -- |
| 2024 | 57°F | 38°F | 0" | -- |
| 2023 | 49°F | 35°F | 0.13" | -- |
| 2022 | 52°F | 26°F | 0" | -- |
| 2021 | 54°F | 34°F | 0" | -- |
| 2020 | 34°F | 23°F | 0" | -- |
| 2019 | 50°F | 30°F | 0" | -- |
| 2018 | 48°F | 42°F | 0.03" | -- |
| 2017 | 40°F | 34°F | 2.44" | -- |
| 2016 | 46°F | 36°F | 0" | -- |
| 2015 | 53°F | 35°F | 0" | -- |
| 2014 | 47°F | 40°F | 0.56" | -- |
| 2013 | 41°F | 31°F | 0.05" | -- |
| 2012 | 36°F | 27°F | 0.2" | -- |
| 2011 | 45°F | 30°F | 0" | -- |
| 2010 | 43°F | 35°F | 0.89" | -- |
| 2009 | 50°F | 37°F | 0" | -- |
| 2008 | 39°F | 31°F | 0.05" | -- |
| 2007 | 45°F | 34°F | 0.03" | -- |
| 2006 | 50°F | 29°F | 0.51" | -- |
| 2005 | 47°F | 30°F | 0" | -- |
| 2004 | 49°F | 38°F | 0" | -- |
| 2003 | 39°F | 20°F | 0.03" | -- |
| 2002 | 37°F | 32°F | 0.51" | 0.2" |
| 2001 | 42°F | 32°F | 0.15" | 0" |
| 2000 | 70°F | 38°F | 0" | 0" |
| 1999 | 52°F | 28°F | 0" | 0" |
| 1998 | 68°F | 40°F | 0" | 0" |
| 1997 | 36°F | 28°F | 0" | 0" |
| 1996 | 64°F | 47°F | 0" | 0" |
| 1995 | 49°F | 43°F | 0.18" | 0" |
| 1994 | 69°F | 29°F | 0" | 0" |
| 1993 | 37°F | 33°F | 0" | 0" |
| 1992 | 48°F | 31°F | 0" | 0" |
| 1991 | 42°F | 35°F | 0" | 0" |
| 1990 | 53°F | 35°F | 0.86" | 0.4" |
| 1989 | 72°F | 54°F | 0" | 0" |
| 1988 | 39°F | 29°F | 0.51" | 0" |
| 1983 | 70°F | 33°F | 0" | 0" |
| 1981 | 45°F | 35°F | 0" | 0" |
| 1980 | 37°F | 27°F | 0" | 0" |
| 1979 | 40°F | 34°F | 0" | 0" |
| 1978 | 44°F | 34°F | 0" | 0" |
| 1977 | 58°F | 46°F | 0.43" | 0" |
| 1976 | 34°F | 24°F | 0.03" | 0.1" |
| 1975 | 55°F | 44°F | 0.28" | 0" |
| 1974 | 64°F | 37°F | 0" | 0" |
| 1973 | 42°F | 37°F | 0.25" | 0" |
| 1972 | 67°F | 42°F | 0" | 0" |
| 1971 | 65°F | 48°F | 0.91" | 0" |