Weather on June 21 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 21st in North Cascades National Park (via Seattle, WA) typically brings pleasant summer weather, with average highs around 72°F and lows near 55°F. Over 55 years of records, the warmest June 21st was in 2021 (75°F average), while the coldest was 1975 (55°F) — a 20°F range across recorded history. Rain or other precipitation has occurred on about 22% of June 21st dates historically. 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 21st in North Cascades? Great weather for outdoor activities.
Year by Year History
| Year | High | Low | Precip | Snow |
|---|---|---|---|---|
| 2025 | 61°F | 52°F | 0.38" | -- |
| 2024 | 87°F | 60°F | 0" | -- |
| 2023 | 69°F | 51°F | 0" | -- |
| 2022 | 77°F | 54°F | 0" | -- |
| 2021 | 88°F | 62°F | 0" | -- |
| 2020 | 70°F | 58°F | 0" | -- |
| 2019 | 72°F | 56°F | 0" | -- |
| 2018 | 70°F | 59°F | 0" | -- |
| 2017 | 69°F | 55°F | 0" | -- |
| 2016 | 73°F | 56°F | 0.18" | -- |
| 2015 | 81°F | 60°F | 0" | -- |
| 2014 | 73°F | 53°F | 0" | -- |
| 2013 | 71°F | 55°F | 0.03" | -- |
| 2012 | 73°F | 54°F | 0" | -- |
| 2011 | 78°F | 54°F | 0" | -- |
| 2010 | 66°F | 53°F | 0" | -- |
| 2009 | 66°F | 53°F | 0.03" | -- |
| 2008 | 78°F | 57°F | 0" | -- |
| 2007 | 73°F | 57°F | 0" | -- |
| 2006 | 68°F | 53°F | 0" | -- |
| 2005 | 72°F | 58°F | 0.1" | -- |
| 2004 | 87°F | 61°F | 0" | -- |
| 2003 | 62°F | 50°F | 0.38" | -- |
| 2002 | 84°F | 58°F | 0" | -- |
| 2001 | 79°F | 58°F | 0" | -- |
| 2000 | 72°F | 58°F | 0" | -- |
| 1999 | 62°F | 54°F | 0.43" | -- |
| 1998 | 79°F | 52°F | 0" | 0" |
| 1997 | 64°F | 53°F | 0.2" | 0" |
| 1996 | 72°F | 53°F | 0" | 0" |
| 1995 | 70°F | 55°F | 0" | 0" |
| 1994 | 80°F | 54°F | 0" | 0" |
| 1993 | 63°F | 51°F | 0.05" | 0" |
| 1992 | 90°F | 57°F | 0" | 0" |
| 1991 | 62°F | 51°F | 0" | 0" |
| 1990 | 85°F | 56°F | 0" | 0" |
| 1989 | 67°F | 49°F | 0" | 0" |
| 1988 | 80°F | 58°F | 0" | 0" |
| 1987 | 64°F | 55°F | 0" | 0" |
| 1986 | 75°F | 51°F | 0" | 0" |
| 1985 | 76°F | 55°F | 0" | 0" |
| 1984 | 63°F | 55°F | 0.2" | 0" |
| 1983 | 73°F | 50°F | 0" | 0" |
| 1982 | 77°F | 58°F | 0" | 0" |
| 1981 | 59°F | 55°F | 0" | 0" |
| 1980 | 69°F | 57°F | 0" | 0" |
| 1979 | 69°F | 51°F | 0" | 0" |
| 1978 | 70°F | 57°F | 0" | 0" |
| 1977 | 72°F | 58°F | 0" | 0" |
| 1976 | 65°F | 55°F | 0" | 0" |
| 1975 | 58°F | 53°F | 0" | 0" |
| 1974 | 74°F | 54°F | 0" | 0" |
| 1973 | 85°F | 57°F | 0.05" | 0" |
| 1972 | 62°F | 52°F | 0.05" | 0" |
| 1971 | 80°F | 53°F | 0" | 0" |