Weather on April 28 at Isle Royale
Isle Royale National Park
MIMidwest800 ft elevation
Avg High52°F
Avg Low33°F
Warmest199160°F
Coldest199429°F
Based on 49 years of data from Houghton, MI
Planning Your Visit
April 28th in Isle Royale National Park (via Houghton, MI) typically brings cool spring weather, with average highs around 52°F and lows near 33°F. Over 49 years of records, the warmest April 28th was in 1991 (60°F average), while the coldest was 1994 (29°F) — a 31°F range across recorded history. Precipitation has occurred on 29% of recorded April 28th dates, with snow falling 2% of the time. The last decade has been 4.3°F cooler on this date compared to 20-30 years ago.
The last decade has been 4.3°F cooler on this date compared to 20-30 years ago.
Planning for April 28th in Isle Royale? Bring layers as temperatures can vary throughout the day.
Year by Year History
| Year | High | Low | Precip | Snow |
|---|---|---|---|---|
| 2025 | 64°F | 47°F | 0.2" | -- |
| 2023 | 42°F | 39°F | 0.46" | -- |
| 2022 | 43°F | 22°F | 0" | -- |
| 2021 | 55°F | 33°F | 0" | -- |
| 2020 | 44°F | 37°F | 0.3" | -- |
| 2019 | 50°F | 24°F | 0" | -- |
| 2018 | 41°F | 25°F | 0" | -- |
| 2017 | 37°F | 29°F | 0.03" | -- |
| 2016 | 46°F | 29°F | 0" | -- |
| 2015 | 63°F | 31°F | 0" | -- |
| 2014 | 46°F | 34°F | 0" | -- |
| 2013 | 64°F | 37°F | 0.03" | -- |
| 2012 | 47°F | 28°F | 0" | -- |
| 2011 | 48°F | 33°F | 0" | -- |
| 2010 | 60°F | 28°F | 0" | -- |
| 2009 | 48°F | 27°F | 0" | -- |
| 2008 | 37°F | 25°F | 0" | -- |
| 2007 | 63°F | 45°F | 0" | -- |
| 2006 | 53°F | 26°F | 0" | -- |
| 2005 | 45°F | 32°F | 0" | -- |
| 2004 | 68°F | 32°F | 0.05" | -- |
| 2003 | 48°F | 35°F | 0" | -- |
| 2002 | 36°F | 30°F | 0.38" | -- |
| 2001 | 59°F | 32°F | 0" | 0" |
| 2000 | 64°F | 35°F | 0.3" | 0" |
| 1999 | 57°F | 35°F | 0" | 0" |
| 1998 | 67°F | 28°F | 0" | 0" |
| 1997 | 55°F | 33°F | 0.2" | 0" |
| 1996 | 52°F | 30°F | 0" | 0" |
| 1995 | 51°F | 33°F | 0" | 0" |
| 1994 | 37°F | 22°F | 0" | 0" |
| 1993 | 52°F | 31°F | 0.97" | 0" |
| 1992 | 63°F | 30°F | 0.18" | 0" |
| 1991 | 72°F | 49°F | 0" | 0" |
| 1990 | 72°F | 41°F | 0.15" | 0" |
| 1989 | 47°F | 34°F | 0" | 0" |
| 1988 | 58°F | 32°F | 0" | 0" |
| 1982 | 59°F | 30°F | 0" | 0" |
| 1981 | 52°F | 37°F | 0.05" | 0" |
| 1980 | 59°F | 40°F | 0" | 0" |
| 1979 | 42°F | 27°F | 0" | 0" |
| 1978 | 67°F | 45°F | 0" | 0" |
| 1977 | 44°F | 24°F | 0" | 0" |
| 1976 | 50°F | 29°F | 0" | 0" |
| 1975 | 44°F | 35°F | 0" | 0" |
| 1974 | 58°F | 38°F | 0" | 0" |
| 1973 | 41°F | 31°F | 0" | 0" |
| 1972 | 57°F | 38°F | 0" | 0" |
| 1971 | 37°F | 33°F | 0.1" | 0.3" |
April 28 at Nearby Parks
Holiday Weather at Isle Royale
Official NPS WebsiteVisit nps.gov/isro for park information, alerts, and reservations
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