Weather on November 18 at Isle Royale
Isle Royale National Park
Based on 49 years of data from Houghton, MI
Planning Your Visit
November 18th in Isle Royale National Park (via Houghton, MI) typically brings cold fall weather, with average highs around 39°F and lows near 26°F. Over 49 years of records, the warmest November 18th was in 2001 (60°F average), while the coldest was 1989 (14°F) — a 46°F range across recorded history. Precipitation has occurred on 53% of recorded November 18th dates, with snow falling 18% of the time (heaviest snowfall: 3"). The last decade has been 1.4°F cooler on this date compared to 20-30 years ago.
The last decade has been 1.4°F cooler on this date compared to 20-30 years ago.
Planning for November 18th in Isle Royale? Bundle up with warm layers and protect extremities from the cold. Consider bringing rain gear or an umbrella.
Year by Year History
| Year | High | Low | Precip | Snow |
|---|---|---|---|---|
| 2025 | 41°F | 18°F | 0" | -- |
| 2024 | 53°F | 30°F | 0" | -- |
| 2023 | 46°F | 37°F | 0" | -- |
| 2022 | 25°F | 16°F | 0.23" | -- |
| 2021 | 35°F | 30°F | 0.15" | -- |
| 2020 | 41°F | 20°F | 0" | -- |
| 2019 | 36°F | 32°F | 0.03" | -- |
| 2018 | 21°F | 15°F | 0.03" | -- |
| 2017 | 35°F | 24°F | 0" | -- |
| 2016 | 47°F | 31°F | 0.94" | -- |
| 2015 | 57°F | 45°F | 0.2" | -- |
| 2014 | 18°F | 12°F | 0.15" | -- |
| 2013 | 34°F | 24°F | 0.2" | -- |
| 2012 | 50°F | 38°F | 0" | -- |
| 2011 | 32°F | 19°F | 0" | -- |
| 2010 | 30°F | 21°F | 0" | -- |
| 2009 | 45°F | 27°F | 0" | -- |
| 2008 | 25°F | 20°F | 0.08" | -- |
| 2007 | 37°F | 28°F | 0" | -- |
| 2006 | 34°F | 32°F | 0.03" | -- |
| 2005 | 29°F | 7°F | 0" | -- |
| 2004 | 46°F | 33°F | 0" | -- |
| 2003 | 47°F | 39°F | 2.46" | -- |
| 2002 | 36°F | 16°F | 0" | 0" |
| 2001 | 68°F | 51°F | 0.18" | 0" |
| 2000 | 29°F | 20°F | 0.36" | 3" |
| 1999 | 45°F | 29°F | 0" | 0" |
| 1998 | 38°F | 30°F | 0.46" | 1" |
| 1997 | 32°F | 17°F | 0.2" | 0.7" |
| 1996 | 30°F | 22°F | 0.08" | 0.5" |
| 1995 | 37°F | 16°F | 0.03" | 0.4" |
| 1994 | 51°F | 36°F | 0.15" | 0" |
| 1993 | 45°F | 21°F | 0" | 0" |
| 1992 | 35°F | 18°F | 0" | 0" |
| 1991 | 51°F | 37°F | 0.13" | 0" |
| 1990 | 51°F | 33°F | 0" | 0" |
| 1989 | 18°F | 11°F | 0.25" | 2.3" |
| 1988 | 34°F | 29°F | 0" | 0" |
| 1981 | 38°F | 31°F | 0" | 0" |
| 1980 | 36°F | 16°F | 0" | 0" |
| 1979 | 49°F | 30°F | 0" | 0" |
| 1978 | 35°F | 25°F | 0.58" | 2.6" |
| 1977 | 33°F | 29°F | 0.64" | 2.9" |
| 1976 | 43°F | 29°F | 0" | 0" |
| 1975 | 43°F | 35°F | 1.12" | 0" |
| 1974 | 40°F | 24°F | 0" | 0" |
| 1973 | 38°F | 30°F | 0.23" | 0" |
| 1972 | 27°F | 19°F | 0.05" | 0.2" |
| 1971 | 52°F | 32°F | 0.61" | 0" |