Weather on August 23 at Isle Royale

Isle Royale National Park

MIMidwest800 ft elevation
Avg High73°F
Avg Low55°F
Warmest199375°F
Coldest197150°F

Based on 50 years of data from Houghton, MI

Planning Your Visit

August 23rd in Isle Royale National Park (via Houghton, MI) typically brings pleasant summer weather, with average highs around 73°F and lows near 55°F. Over 50 years of records, the warmest August 23rd was in 1993 (75°F average), while the coldest was 1971 (50°F) — a 25°F range across recorded history. Rain or other precipitation has occurred on about 32% of August 23rd dates historically, with the wettest August 23rd recording 4.37" 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 August 23rd in Isle Royale? Great weather for outdoor activities. Consider bringing rain gear or an umbrella.

Year by Year History

YearHighLowPrecipSnow
202569°F60°F0.2"--
202474°F62°F0.53"--
202364°F61°F0.1"--
202280°F58°F0"--
202187°F58°F0"--
202079°F58°F0"--
201966°F44°F0"--
201879°F56°F0"--
201760°F41°F0"--
201686°F65°F0"--
201570°F55°F1.09"--
201469°F62°F0"--
201377°F49°F0"--
201273°F58°F0.84"--
201183°F58°F0"--
201080°F56°F0"--
200967°F38°F0"--
200875°F58°F0.2"--
200783°F56°F0.13"--
200675°F49°F0"--
200572°F45°F0"--
200459°F45°F0"--
200376°F52°F0"0"
200274°F55°F0"0"
200180°F60°F0"0"
200080°F53°F0"0"
199975°F63°F0.08"0"
199880°F62°F2.24"0"
199775°F51°F0"0"
199676°F55°F0"0"
199579°F64°F0"0"
199480°F55°F0"0"
199386°F65°F1.3"0"
199285°F61°F0"0"
199163°F56°F0.86"0"
199079°F56°F0.18"0"
198971°F54°F0"0"
198875°F60°F0.74"0"
198375°F56°F0"0"
198176°F63°F0"0"
198077°F60°F0"0"
197970°F59°F0.58"0"
197863°F53°F4.37"0"
197759°F43°F0"0"
197673°F58°F0"0"
197572°F54°F0.1"0"
197456°F48°F0"0"
197368°F52°F0"0"
197266°F41°F0"0"
197158°F42°F0"0"

August 23 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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