Weather on October 3 at Isle Royale
Isle Royale National Park
Based on 50 years of data from Houghton, MI
Planning Your Visit
October 3rd in Isle Royale National Park (via Houghton, MI) typically brings cool fall weather, with average highs around 59°F and lows near 43°F. Over 50 years of records, the warmest October 3rd was in 2023 (73°F average), while the coldest was 1999 (35°F) — a 38°F range across recorded history. Rain or other precipitation has occurred on about 44% of October 3rd dates historically, with the wettest October 3rd recording 6.2" of rain. The last decade has been 8.1°F warmer on this date compared to 20-30 years ago.
The last decade has been 8.1°F warmer on this date compared to 20-30 years ago.
Planning for October 3rd 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 | 81°F | 61°F | 0" | -- |
| 2024 | 62°F | 44°F | 0" | -- |
| 2023 | 86°F | 61°F | 0" | -- |
| 2022 | 74°F | 44°F | 0" | -- |
| 2021 | 63°F | 59°F | 6.2" | -- |
| 2020 | 46°F | 31°F | 0.08" | -- |
| 2019 | 49°F | 41°F | 1.63" | -- |
| 2018 | 65°F | 49°F | 2.13" | -- |
| 2017 | 75°F | 56°F | 1.07" | -- |
| 2016 | 68°F | 39°F | 0" | -- |
| 2015 | 52°F | 44°F | 0" | -- |
| 2014 | 55°F | 40°F | 1.35" | -- |
| 2013 | 57°F | 50°F | 0.58" | -- |
| 2012 | 71°F | 44°F | 0" | -- |
| 2011 | 66°F | 42°F | 0" | -- |
| 2010 | 55°F | 30°F | 0" | -- |
| 2009 | 50°F | 44°F | 0.18" | -- |
| 2008 | 45°F | 32°F | 0.03" | -- |
| 2007 | 65°F | 52°F | 1.24" | -- |
| 2006 | 65°F | 45°F | 0.41" | -- |
| 2005 | 79°F | 65°F | 0" | -- |
| 2004 | 56°F | 39°F | 0.05" | -- |
| 2003 | 45°F | 37°F | 0.66" | -- |
| 2002 | 53°F | 31°F | 0" | -- |
| 2001 | 64°F | 51°F | 0.66" | 0" |
| 2000 | 62°F | 37°F | 0" | 0" |
| 1999 | 47°F | 24°F | 0" | 0" |
| 1998 | 55°F | 39°F | 0" | 0" |
| 1997 | 70°F | 50°F | 0" | 0" |
| 1996 | 51°F | 37°F | 0" | 0" |
| 1995 | 53°F | 41°F | 0.64" | 0" |
| 1994 | 47°F | 35°F | 0" | 0" |
| 1993 | 60°F | 36°F | 0.2" | 0" |
| 1992 | 60°F | 42°F | 0" | 0" |
| 1991 | 52°F | 38°F | 0" | 0" |
| 1990 | 70°F | 50°F | 0.48" | 0" |
| 1989 | 40°F | 32°F | 0" | 0" |
| 1988 | 48°F | 34°F | 1.14" | 0" |
| 1983 | 53°F | 46°F | 0.15" | 0" |
| 1981 | 50°F | 29°F | 0" | 0" |
| 1980 | 40°F | 33°F | 0" | 0" |
| 1979 | 54°F | 46°F | 0.23" | 0" |
| 1978 | 55°F | 48°F | 0" | 0" |
| 1977 | 59°F | 40°F | 0" | 0" |
| 1976 | 66°F | 43°F | 0" | 0" |
| 1975 | 60°F | 42°F | 0" | 0" |
| 1974 | 60°F | 26°F | 0" | 0" |
| 1973 | 63°F | 46°F | 0" | 0" |
| 1972 | 57°F | 52°F | 0.61" | 0" |
| 1971 | 66°F | 50°F | 0.46" | 0" |