Weather on May 27 at Isle Royale

Isle Royale National Park

MIMidwest800 ft elevation
Avg High67°F
Avg Low44°F
Warmest197773°F
Coldest202137°F

Based on 50 years of data from Houghton, MI

Planning Your Visit

May 27th in Isle Royale National Park (via Houghton, MI) typically brings mild spring weather, with average highs around 67°F and lows near 44°F. Over 50 years of records, the warmest May 27th was in 1977 (73°F average), while the coldest was 2021 (37°F) — a 36°F range across recorded history. Rain or other precipitation has occurred on about 24% of May 27th dates historically, with the wettest May 27th recording 2.77" of rain. The last decade has been 1.7°F warmer on this date compared to 20-30 years ago.

The last decade has been 1.7°F warmer on this date compared to 20-30 years ago.

Planning for May 27th in Isle Royale? Great weather for outdoor activities.

Year by Year History

YearHighLowPrecipSnow
202571°F49°F0"--
202467°F50°F0"--
202379°F44°F0"--
202267°F47°F0"--
202143°F30°F0"--
202075°F63°F0.46"--
201948°F40°F0.25"--
201883°F53°F0"--
201770°F49°F0"--
201666°F50°F0.05"--
201575°F45°F0.28"--
201465°F48°F0"--
201363°F39°F0"--
201262°F46°F0.56"--
201154°F27°F0"--
201070°F47°F0"--
200958°F41°F0"--
200853°F30°F0"--
200752°F45°F0.1"--
200670°F45°F0"--
200559°F43°F0.23"--
200455°F36°F0.3"--
200377°F48°F0"0"
200273°F50°F0"0"
200160°F39°F0"0"
200062°F40°F0"0"
199980°F50°F0"0"
199884°F40°F0"0"
199767°F36°F0"0"
199669°F39°F0"0"
199567°F47°F0"0"
199467°F32°F0"0"
199345°F39°F1.32"0"
199263°F40°F0"0"
199178°F57°F0"0"
199072°F43°F0"0"
198964°F42°F0"0"
198876°F53°F2.18"0"
198268°F51°F0"0"
198162°F36°F0"0"
198080°F43°F0"0"
197951°F43°F0.15"0"
197879°F58°F2.77"0"
197786°F60°F0"0"
197676°F49°F0"0"
197567°F48°F0"0"
197465°F43°F0"0"
197363°F45°F0"0"
197281°F53°F0"0"
197162°F33°F0"0"

May 27 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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