Weather on July 18 at North Cascades
North Cascades National Park
Based on 54 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
July 18th in North Cascades National Park (via Seattle, WA) typically brings pleasant summer weather, with average highs around 77°F and lows near 58°F. Over 54 years of records, the warmest July 18th was in 2015 (79°F average), while the coldest was 1996 (59°F) — a 20°F range across recorded history. Rain or other precipitation has occurred on about 11% of July 18th dates historically, with the wettest July 18th recording 0.79" 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 July 18th in North Cascades? Great weather for outdoor activities.
Year by Year History
| Year | High | Low | Precip | Snow |
|---|---|---|---|---|
| 2025 | 71°F | 58°F | 0" | -- |
| 2024 | 86°F | 60°F | 0" | -- |
| 2023 | 80°F | 58°F | 0" | -- |
| 2022 | 73°F | 55°F | 0.03" | -- |
| 2021 | 79°F | 58°F | 0" | -- |
| 2020 | 80°F | 56°F | 0" | -- |
| 2019 | 74°F | 57°F | 0.1" | -- |
| 2018 | 78°F | 60°F | 0" | -- |
| 2017 | 81°F | 56°F | 0" | -- |
| 2016 | 73°F | 62°F | 0" | -- |
| 2015 | 92°F | 66°F | 0" | -- |
| 2014 | 78°F | 57°F | 0" | -- |
| 2013 | 79°F | 59°F | 0" | -- |
| 2012 | 70°F | 59°F | 0" | -- |
| 2011 | 73°F | 53°F | 0" | -- |
| 2010 | 67°F | 54°F | 0" | -- |
| 2009 | 80°F | 63°F | 0" | -- |
| 2008 | 67°F | 54°F | 0" | -- |
| 2007 | 68°F | 60°F | 0.79" | -- |
| 2006 | 74°F | 56°F | 0" | -- |
| 2005 | 88°F | 61°F | 0" | -- |
| 2004 | 87°F | 63°F | 0" | -- |
| 2003 | 86°F | 58°F | 0" | -- |
| 2002 | 78°F | 61°F | 0" | -- |
| 2001 | 71°F | 53°F | -- | -- |
| 2000 | 71°F | 57°F | 0" | -- |
| 1999 | 70°F | 54°F | 0" | -- |
| 1997 | 75°F | 56°F | 0" | 0" |
| 1996 | 64°F | 54°F | 0.28" | 0" |
| 1995 | 90°F | 63°F | 0" | 0" |
| 1994 | 76°F | 61°F | 0" | 0" |
| 1993 | 77°F | 54°F | 0" | 0" |
| 1992 | 87°F | 60°F | 0" | 0" |
| 1991 | 73°F | 58°F | 0" | 0" |
| 1990 | 78°F | 56°F | 0" | 0" |
| 1989 | 76°F | 61°F | 0" | 0" |
| 1988 | 78°F | 53°F | 0" | 0" |
| 1987 | 77°F | 59°F | 0.18" | 0" |
| 1986 | 74°F | 52°F | 0" | 0" |
| 1985 | 85°F | 61°F | 0" | 0" |
| 1984 | 78°F | 56°F | 0" | 0" |
| 1983 | 77°F | 56°F | 0" | 0" |
| 1982 | 73°F | 59°F | 0" | 0" |
| 1981 | 69°F | 61°F | 0" | 0" |
| 1980 | 75°F | 55°F | 0" | 0" |
| 1979 | 84°F | 62°F | 0" | 0" |
| 1978 | 72°F | 55°F | 0" | 0" |
| 1977 | 68°F | 54°F | 0" | 0" |
| 1976 | 75°F | 54°F | 0" | 0" |
| 1975 | 73°F | 60°F | 0" | 0" |
| 1974 | 73°F | 59°F | 0.03" | 0" |
| 1973 | 83°F | 60°F | 0" | 0" |
| 1972 | 74°F | 58°F | 0" | 0" |
| 1971 | 89°F | 59°F | 0" | 0" |