Weather on August 16 at Isle Royale

Isle Royale National Park

MIMidwest800 ft elevation
Avg High76°F
Avg Low56°F
Warmest201576°F
Coldest199753°F

Based on 50 years of data from Houghton, MI

Planning Your Visit

August 16th in Isle Royale National Park (via Houghton, MI) typically brings pleasant summer weather, with average highs around 76°F and lows near 56°F. Over 50 years of records, the warmest August 16th was in 2015 (76°F average), while the coldest was 1997 (53°F) — a 23°F range across recorded history. Rain or other precipitation has occurred on about 42% of August 16th dates historically, with the wettest August 16th recording 3.43" of rain. The last decade has been 2.9°F warmer on this date compared to 20-30 years ago.

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

Planning for August 16th in Isle Royale? Great weather for outdoor activities. Consider bringing rain gear or an umbrella.

Year by Year History

YearHighLowPrecipSnow
202573°F54°F0.25"--
202477°F64°F3.38"--
202385°F65°F0.69"--
202279°F50°F0"--
202186°F62°F0"--
202075°F59°F0"--
201969°F57°F0.69"--
201879°F59°F0"--
201769°F51°F0"--
201680°F58°F0"--
201586°F66°F0"--
201468°F53°F1.14"--
201379°F53°F0"--
201269°F55°F0.86"--
201183°F57°F0.05"--
201067°F57°F0"--
200983°F67°F0.18"--
200879°F61°F0"--
200768°F53°F0"--
200683°F48°F0"--
200572°F47°F0.05"--
200470°F51°F0"--
200388°F61°F0"0"
200274°F58°F0.61"0"
200173°F60°F1.02"0"
200076°F51°F0"0"
199978°F62°F1.3"0"
199881°F55°F0.03"0"
199758°F49°F0.03"0"
199680°F52°F0"0"
199586°F57°F0"0"
199482°F58°F0"0"
199374°F62°F0"0"
199272°F49°F0"0"
199181°F61°F2.59"0"
199087°F57°F0"0"
198970°F51°F0"0"
198884°F66°F3.43"0"
198379°F65°F0"0"
198166°F50°F0"0"
198068°F53°F0"0"
197970°F44°F0"0"
197872°F58°F0.36"0"
197759°F52°F0.46"0"
197673°F48°F0"0"
197578°F59°F0"0"
197476°F59°F0.03"0"
197373°F60°F0.1"0"
197279°F62°F1.07"0"
197182°F53°F0"0"

August 16 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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