Weather on September 26 at Isle Royale

Isle Royale National Park

MIMidwest800 ft elevation
Avg High62°F
Avg Low46°F
Warmest200869°F
Coldest199137°F

Based on 50 years of data from Houghton, MI

Planning Your Visit

September 26th in Isle Royale National Park (via Houghton, MI) typically brings mild fall weather, with average highs around 62°F and lows near 46°F. Over 50 years of records, the warmest September 26th was in 2008 (69°F average), while the coldest was 1991 (37°F) — a 32°F range across recorded history. Rain or other precipitation has occurred on about 52% of September 26th dates historically, with the wettest September 26th recording 3.51" of rain. Temperatures on this date have remained relatively stable over the past several decades.

Temperatures on this date have remained relatively stable over the past several decades.

Planning for September 26th in Isle Royale? Great weather for outdoor activities. Consider bringing rain gear or an umbrella.

Year by Year History

YearHighLowPrecipSnow
202565°F47°F0"--
202479°F47°F0"--
202366°F56°F0"--
202253°F44°F0.86"--
202165°F51°F0.03"--
202066°F52°F0.69"--
201960°F50°F0"--
201855°F44°F0.1"--
201762°F55°F0.13"--
201659°F51°F1.55"--
201575°F55°F0"--
201478°F49°F0"--
201367°F42°F0"--
201254°F34°F0"--
201170°F50°F0.3"--
201057°F36°F0"--
200963°F50°F0.28"--
200882°F56°F0"--
200757°F46°F0.03"--
200659°F41°F0.71"--
200559°F46°F0.79"--
200474°F56°F0"--
200352°F42°F0.76"--
200252°F43°F0.28"0"
200159°F47°F0"0"
200065°F45°F0"0"
199976°F54°F0"0"
199868°F49°F1.22"0"
199776°F44°F0"0"
199662°F50°F0.41"0"
199560°F41°F0.03"0"
199449°F41°F0.41"0"
199364°F45°F0.38"0"
199261°F52°F1.7"0"
199140°F35°F0"0"
199070°F48°F0"0"
198945°F33°F0"0"
198857°F44°F0.89"0"
198367°F52°F0"0"
198166°F53°F0.2"0"
198050°F34°F0"0"
197965°F45°F0"0"
197871°F46°F0.23"0"
197756°F50°F0.3"0"
197648°F40°F0.13"0"
197559°F35°F0"0"
197469°F44°F0"0"
197364°F52°F3.51"0"
197246°F40°F0.15"0"
197158°F48°F0"0"

September 26 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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