Weather on October 9 at Isle Royale

Isle Royale National Park

MIMidwest800 ft elevation
Avg High56°F
Avg Low39°F
Warmest202167°F
Coldest199333°F

Based on 50 years of data from Houghton, MI

Planning Your Visit

October 9th in Isle Royale National Park (via Houghton, MI) typically brings cool fall weather, with average highs around 56°F and lows near 39°F. Over 50 years of records, the warmest October 9th was in 2021 (67°F average), while the coldest was 1993 (33°F) — a 34°F range across recorded history. Precipitation has occurred on 42% of recorded October 9th dates, with snow falling 2% of the time. The last decade has been 2.9°F cooler on this date compared to 20-30 years ago.

The last decade has been 2.9°F cooler on this date compared to 20-30 years ago.

Planning for October 9th in Isle Royale? Bring layers as temperatures can vary throughout the day. Consider bringing rain gear or an umbrella.

Year by Year History

YearHighLowPrecipSnow
202565°F35°F0"--
202459°F29°F0"--
202344°F39°F0.79"--
202251°F28°F0"--
202174°F60°F0"--
202075°F43°F1.37"--
201972°F49°F0"--
201843°F40°F2.18"--
201759°F39°F0"--
201650°F32°F0.03"--
201556°F40°F0.03"--
201446°F37°F0"--
201374°F57°F0"--
201248°F37°F0.08"--
201171°F53°F0"--
201059°F50°F0"--
200947°F28°F0"--
200854°F47°F0"--
200751°F42°F1.78"--
200648°F29°F0"--
200555°F32°F0"--
200456°F37°F0.33"--
200377°F54°F0"--
200250°F42°F0.25"0"
200170°F49°F0.94"0"
200057°F36°F0"0"
199968°F37°F0"0"
199868°F36°F0"0"
199779°F53°F0.08"0"
199653°F38°F0.2"0"
199554°F35°F0.03"0"
199447°F35°F0.61"0"
199336°F31°F0"0"
199256°F39°F0.99"0"
199154°F40°F0"0"
199047°F30°F0"0"
198952°F24°F0.2"0"
198860°F39°F0.03"0"
198356°F33°F0"0"
198150°F39°F0"0"
198049°F29°F0"0"
197941°F33°F0.61"0.5"
197860°F38°F0"0"
197746°F37°F0.25"0"
197647°F38°F0"0"
197562°F47°F0.03"0"
197456°F39°F0"0"
197367°F52°F2.51"0"
197242°F29°F0"0"
197150°F40°F0"0"

October 9 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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