Weather on August 18 at Glacier Bay

Glacier Bay National Park and Preserve

AKAlaska
Avg High63°F
Avg Low49°F
Warmest197763°F
Coldest197350°F

Based on 55 years of data from Juneau, AK

Planning Your Visit

August 18th in Glacier Bay National Park (via Juneau, AK) typically brings mild summer weather, with average highs around 63°F and lows near 49°F. Over 55 years of records, the warmest August 18th was in 1977 (63°F average), while the coldest was 1973 (50°F) — a 13°F range across recorded history. Rain or other precipitation has occurred on about 58% of August 18th dates historically, with the wettest August 18th recording 3" 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 18th in Glacier Bay? Great weather for outdoor activities. Consider bringing rain gear or an umbrella.

Year by Year History

YearHighLowPrecipSnow
202562°F46°F0.33"0"
202479°F46°F0"0"
202364°F46°F0"0"
202269°F53°F0"0"
202156°F52°F1.17"0"
202060°F49°F0.71"0"
201962°F46°F0"0"
201868°F46°F0"0"
201754°F50°F1.6"0"
201659°F53°F0.89"0"
201565°F57°F2.67"0"
201458°F53°F0.51"0"
201356°F50°F3"0"
201266°F46°F0"0"
201157°F50°F0.08"0"
201057°F53°F1.14"0"
200962°F52°F0"0"
200860°F49°F0"0"
200761°F53°F0.18"0"
200656°F52°F0.74"0"
200560°F54°F1.42"0"
200467°F55°F0.33"0"
200362°F46°F0.03"0"
200254°F50°F0.2"0"
200159°F52°F1.32"0"
200066°F42°F0.15"0"
199963°F45°F0.03"0"
199860°F47°F0.08"0"
199769°F48°F0.05"0"
199665°F50°F0"0"
199565°F48°F0"0"
199465°F49°F0"0"
199367°F48°F0.08"0"
199263°F46°F0"0"
199159°F51°F1.07"0"
199072°F53°F0"0"
198964°F56°F0.1"0"
198860°F48°F1.19"0"
198763°F48°F0"0"
198657°F46°F0.03"0"
198566°F42°F0"0"
198461°F52°F0.1"0"
198352°F48°F1.57"0"
198259°F46°F0"0"
198164°F44°F0"0"
198054°F51°F0.51"0"
197971°F50°F0.13"0"
197868°F47°F0"0"
197779°F47°F0"0"
197656°F50°F0.76"0"
197561°F46°F0"0"
197471°F49°F0"0"
197367°F34°F0"0"
197271°F50°F0"0"
197160°F49°F0.03"0"

August 18 at Nearby Parks

Holiday Weather at Glacier Bay

Official NPS WebsiteVisit nps.gov/glba for park information, alerts, and reservations

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