Weather on June 15 at North Cascades
North Cascades National Park
Based on 55 years of data from Seattle, WA
Elevation Note: North Cascades sits at 4,200 ft. Expect temperatures 15°F cooler than the data shown below, which comes from Seattle, WA at a lower elevation.
Planning Your Visit
June 15th in North Cascades National Park (via Seattle, WA) typically brings mild summer weather, with average highs around 68°F and lows near 53°F. Over 55 years of records, the warmest June 15th was in 2015 (73°F average), while the coldest was 1998 (54°F) — a 19°F range across recorded history. Rain or other precipitation has occurred on about 31% of June 15th dates historically, with the wettest June 15th recording 2.29" 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 June 15th in North Cascades? Great weather for outdoor activities. Consider bringing rain gear or an umbrella.
Year by Year History
| Year | High | Low | Precip | Snow |
|---|---|---|---|---|
| 2025 | 71°F | 51°F | 0" | -- |
| 2024 | 63°F | 52°F | 0.36" | -- |
| 2023 | 72°F | 48°F | 0" | -- |
| 2022 | 62°F | 52°F | 0" | -- |
| 2021 | 69°F | 55°F | 0" | -- |
| 2020 | 66°F | 54°F | 0.08" | -- |
| 2019 | 75°F | 54°F | 0" | -- |
| 2018 | 72°F | 52°F | 0" | -- |
| 2017 | 62°F | 54°F | 2.29" | -- |
| 2016 | 67°F | 45°F | 0" | -- |
| 2015 | 86°F | 61°F | 0" | -- |
| 2014 | 66°F | 52°F | 0.25" | -- |
| 2013 | 75°F | 55°F | 0" | -- |
| 2012 | 72°F | 48°F | 0" | -- |
| 2011 | 62°F | 49°F | 0.25" | -- |
| 2010 | 62°F | 50°F | 0.53" | -- |
| 2009 | 74°F | 57°F | 0" | -- |
| 2008 | 69°F | 50°F | 0" | -- |
| 2007 | 66°F | 52°F | 0.46" | -- |
| 2006 | 70°F | 55°F | 0" | -- |
| 2005 | 67°F | 52°F | 0" | -- |
| 2004 | 69°F | 51°F | 0" | -- |
| 2003 | 74°F | 55°F | 0" | -- |
| 2002 | 69°F | 53°F | 0" | -- |
| 2001 | 65°F | 52°F | 0" | -- |
| 2000 | 68°F | 52°F | 0" | -- |
| 1999 | 72°F | 56°F | 0" | -- |
| 1998 | 58°F | 50°F | 1.4" | 0" |
| 1997 | 70°F | 58°F | 0" | 0" |
| 1996 | 71°F | 48°F | 0" | 0" |
| 1995 | 70°F | 54°F | 0" | 0" |
| 1994 | 66°F | 48°F | 0" | 0" |
| 1993 | 71°F | 56°F | 0.08" | 0" |
| 1992 | 71°F | 54°F | 0" | 0" |
| 1991 | 65°F | 51°F | 0.38" | 0" |
| 1990 | 72°F | 53°F | 0" | 0" |
| 1989 | 64°F | 55°F | 0" | 0" |
| 1988 | 78°F | 59°F | 0" | 0" |
| 1987 | 64°F | 51°F | 0" | 0" |
| 1986 | 69°F | 52°F | 0.05" | 0" |
| 1985 | 66°F | 51°F | 0.36" | 0" |
| 1984 | 59°F | 54°F | 0" | 0" |
| 1983 | 66°F | 55°F | 0" | 0" |
| 1982 | 74°F | 54°F | 0" | 0" |
| 1981 | 66°F | 53°F | 0.33" | 0" |
| 1980 | 67°F | 57°F | 0" | 0" |
| 1979 | 68°F | 54°F | 0" | 0" |
| 1978 | 65°F | 55°F | 0.03" | 0" |
| 1977 | 66°F | 54°F | 0" | 0" |
| 1976 | 62°F | 55°F | 1.14" | 0" |
| 1975 | 58°F | 52°F | 0.51" | 0" |
| 1974 | 67°F | 56°F | 0" | 0" |
| 1973 | 65°F | 51°F | 0.08" | 0" |
| 1972 | 64°F | 55°F | 0" | 0" |
| 1971 | 64°F | 52°F | 0" | 0" |