Weather on July 16 at Isle Royale

Isle Royale National Park

MIMidwest800 ft elevation
Avg High78°F
Avg Low57°F
Warmest197585°F
Coldest202555°F

Based on 50 years of data from Houghton, MI

Planning Your Visit

July 16th in Isle Royale National Park (via Houghton, MI) typically brings pleasant summer weather, with average highs around 78°F and lows near 57°F. Over 50 years of records, the warmest July 16th was in 1975 (85°F average), while the coldest was 2025 (55°F) — a 30°F range across recorded history. Rain or other precipitation has occurred on about 46% of July 16th dates historically, with the wettest July 16th recording 7.59" of rain. The last decade has been 7.2°F cooler on this date compared to 20-30 years ago.

The last decade has been 7.2°F cooler on this date compared to 20-30 years ago.

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

Year by Year History

YearHighLowPrecipSnow
202561°F50°F0.3"--
202473°F59°F0"--
202374°F53°F0.46"--
202284°F55°F0"--
202181°F50°F0"--
202085°F58°F0.03"--
201982°F62°F0"--
201876°F58°F0"--
201767°F45°F0"--
201675°F44°F0"--
201579°F52°F0.1"--
201469°F50°F0"--
201387°F64°F1.5"--
201291°F62°F0.08"--
201186°F64°F0"--
201080°F63°F0"--
200961°F51°F0.03"--
200875°F57°F0.05"--
200777°F48°F0"--
200686°F66°F7.59"--
200586°F68°F0.23"--
200470°F57°F0.1"--
200379°F51°F0"0"
200291°F68°F0"0"
200174°F63°F0.25"0"
200085°F53°F0"0"
199986°F69°F0.1"0"
199883°F62°F0"0"
199788°F64°F0.05"0"
199680°F57°F0"0"
199574°F56°F0.05"0"
199473°F52°F0"0"
199373°F52°F0.33"0"
199275°F60°F0.23"0"
199192°F67°F0.41"0"
199078°F59°F0.51"0"
198973°F57°F0"0"
198876°F57°F0"0"
198392°F68°F0.13"0"
198175°F60°F0"0"
198071°F54°F0"0"
197966°F48°F0"0"
197876°F55°F0"0"
197774°F55°F0.1"0"
197666°F52°F0"0"
197596°F73°F0"0"
197480°F53°F0.3"0"
197378°F51°F0"0"
197276°F53°F0"0"
197168°F48°F0.56"0"

July 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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