Weather on October 22 at Isle Royale

Isle Royale National Park

MIMidwest800 ft elevation
Avg High50°F
Avg Low36°F
Warmest202465°F
Coldest199729°F

Based on 50 years of data from Houghton, MI

Planning Your Visit

October 22nd in Isle Royale National Park (via Houghton, MI) typically brings cool fall weather, with average highs around 50°F and lows near 36°F. Over 50 years of records, the warmest October 22nd was in 2024 (65°F average), while the coldest was 1997 (29°F) — a 36°F range across recorded history. Precipitation has occurred on 54% of recorded October 22nd dates, with snow falling 12% of the time (heaviest snowfall: 2.1"). The last decade has been 2.6°F warmer on this date compared to 20-30 years ago.

The last decade has been 2.6°F warmer on this date compared to 20-30 years ago.

Planning for October 22nd in Isle Royale? Bring layers as temperatures can vary throughout the day. Consider bringing rain gear or an umbrella.

Year by Year History

YearHighLowPrecipSnow
202546°F40°F2.06"--
202477°F53°F0.56"--
202352°F30°F0"--
202260°F39°F0"--
202145°F33°F0"--
202039°F34°F0.18"--
201950°F42°F0.38"--
201853°F27°F0.13"--
201765°F43°F0.05"--
201653°F32°F0"--
201549°F33°F0"--
201451°F28°F0"--
201339°F33°F0.51"--
201256°F44°F0"--
201150°F30°F0"--
201056°F38°F0"--
200941°F32°F0.08"--
200846°F27°F0"--
200748°F39°F0.03"--
200636°F32°F0.08"--
200546°F41°F0.33"--
200456°F42°F0.1"--
200344°F34°F0.05"--
200233°F29°F0.53"0.5"
200157°F31°F0.13"0"
200059°F35°F0"0"
199964°F37°F0.61"0"
199864°F27°F0"0"
199731°F27°F0.05"0.2"
199658°F46°F0.18"0"
199542°F34°F0.46"0"
199460°F46°F0.79"0"
199345°F36°F0"0"
199267°F39°F0"0"
199148°F32°F0"0"
199046°F33°F0"0"
198965°F32°F0"0"
198841°F34°F0.08"0.1"
198350°F35°F0"0"
198137°F27°F0.46"2.1"
198040°F32°F0"0"
197943°F33°F3.2"0.3"
197859°F35°F0.03"0"
197744°F32°F0"0"
197637°F31°F0.2"0.4"
197550°F43°F0"0"
197454°F41°F0.03"0"
197372°F50°F0"0"
197242°F37°F0"0"
197157°F46°F0.2"0"

October 22 at Nearby Parks

Holiday Weather at Isle Royale

Official NPS WebsiteVisit nps.gov/isro for park information, alerts, and reservations

Explore More at Isle Royale

See historical weather for other dates

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