Weather on October 3 at Isle Royale

Isle Royale National Park

MIMidwest800 ft elevation
Avg High59°F
Avg Low43°F
Warmest202373°F
Coldest199935°F

Based on 50 years of data from Houghton, MI

Planning Your Visit

October 3rd in Isle Royale National Park (via Houghton, MI) typically brings cool fall weather, with average highs around 59°F and lows near 43°F. Over 50 years of records, the warmest October 3rd was in 2023 (73°F average), while the coldest was 1999 (35°F) — a 38°F range across recorded history. Rain or other precipitation has occurred on about 44% of October 3rd dates historically, with the wettest October 3rd recording 6.2" of rain. The last decade has been 8.1°F warmer on this date compared to 20-30 years ago.

The last decade has been 8.1°F warmer on this date compared to 20-30 years ago.

Planning for October 3rd in Isle Royale? Bring layers as temperatures can vary throughout the day. Consider bringing rain gear or an umbrella.

Year by Year History

YearHighLowPrecipSnow
202581°F61°F0"--
202462°F44°F0"--
202386°F61°F0"--
202274°F44°F0"--
202163°F59°F6.2"--
202046°F31°F0.08"--
201949°F41°F1.63"--
201865°F49°F2.13"--
201775°F56°F1.07"--
201668°F39°F0"--
201552°F44°F0"--
201455°F40°F1.35"--
201357°F50°F0.58"--
201271°F44°F0"--
201166°F42°F0"--
201055°F30°F0"--
200950°F44°F0.18"--
200845°F32°F0.03"--
200765°F52°F1.24"--
200665°F45°F0.41"--
200579°F65°F0"--
200456°F39°F0.05"--
200345°F37°F0.66"--
200253°F31°F0"--
200164°F51°F0.66"0"
200062°F37°F0"0"
199947°F24°F0"0"
199855°F39°F0"0"
199770°F50°F0"0"
199651°F37°F0"0"
199553°F41°F0.64"0"
199447°F35°F0"0"
199360°F36°F0.2"0"
199260°F42°F0"0"
199152°F38°F0"0"
199070°F50°F0.48"0"
198940°F32°F0"0"
198848°F34°F1.14"0"
198353°F46°F0.15"0"
198150°F29°F0"0"
198040°F33°F0"0"
197954°F46°F0.23"0"
197855°F48°F0"0"
197759°F40°F0"0"
197666°F43°F0"0"
197560°F42°F0"0"
197460°F26°F0"0"
197363°F46°F0"0"
197257°F52°F0.61"0"
197166°F50°F0.46"0"

October 3 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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