Weather on August 15 at Glacier
Glacier National Park
Based on 55 years of data from Kalispell, MT
Elevation Note: Glacier sits at 4,500 ft. Expect temperatures 16°F cooler than the data shown below, which comes from Kalispell, MT at a lower elevation.
Planning Your Visit
August 15th in Glacier National Park (via Kalispell, MT) typically brings warm summer weather, with average highs around 82°F and lows near 48°F — a 34°F daily swing. Over 55 years of records, the warmest August 15th was in 2003 (77°F average), while the coldest was 1999 (50°F) — a 27°F range across recorded history. Rain or other precipitation has occurred on about 36% of August 15th dates historically, with the wettest August 15th recording 1.35" 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 15th in Glacier? Stay hydrated and seek shade during peak afternoon hours. Consider bringing rain gear or an umbrella.
Year by Year History
| Year | High | Low | Precip | Snow |
|---|---|---|---|---|
| 2025 | 80°F | 43°F | 0" | 0" |
| 2024 | 89°F | 56°F | 0.53" | 0" |
| 2023 | 97°F | 49°F | 0" | 0" |
| 2022 | 88°F | 43°F | 0" | 0" |
| 2021 | 98°F | 49°F | 0" | 0" |
| 2020 | 86°F | 40°F | 0" | 0" |
| 2019 | 84°F | 43°F | 0" | 0" |
| 2018 | 87°F | 42°F | 0" | 0" |
| 2017 | 79°F | 36°F | 0" | 0" |
| 2016 | 90°F | 53°F | 0" | 0" |
| 2015 | 72°F | 48°F | 0.08" | 0" |
| 2014 | 77°F | 53°F | 0.86" | 0" |
| 2013 | 93°F | 50°F | 0" | 0" |
| 2012 | 72°F | 45°F | 0.05" | 0" |
| 2011 | 77°F | 49°F | 0" | 0" |
| 2010 | 82°F | 43°F | 0" | 0" |
| 2009 | 59°F | 46°F | 0.05" | 0" |
| 2008 | 90°F | 49°F | 0" | 0" |
| 2007 | 90°F | 43°F | 0" | 0" |
| 2006 | 83°F | 40°F | 0" | 0" |
| 2005 | 84°F | 39°F | 0" | 0" |
| 2004 | 93°F | 60°F | 0" | -- |
| 2003 | 97°F | 58°F | 0" | -- |
| 2002 | 80°F | 42°F | 0" | -- |
| 2001 | 90°F | 51°F | 0" | -- |
| 2000 | 85°F | 41°F | 0" | -- |
| 1999 | 58°F | 42°F | 0.25" | -- |
| 1998 | 89°F | 48°F | 0" | 0" |
| 1997 | 77°F | 49°F | 0.05" | 0" |
| 1996 | 85°F | 49°F | 0" | 0" |
| 1995 | 60°F | 47°F | 0.71" | 0" |
| 1994 | 90°F | 53°F | 0" | 0" |
| 1993 | 75°F | 55°F | 0.13" | 0" |
| 1992 | 91°F | 51°F | 0" | 0" |
| 1991 | 80°F | 45°F | 0" | 0" |
| 1990 | 97°F | 51°F | 0.18" | 0" |
| 1989 | 74°F | 54°F | 0.1" | 0" |
| 1988 | 88°F | 44°F | 0" | 0" |
| 1987 | 66°F | 51°F | 0.05" | 0" |
| 1986 | 88°F | 53°F | 0" | 0" |
| 1985 | 60°F | 46°F | 0.2" | 0" |
| 1984 | 89°F | 47°F | 0" | 0" |
| 1983 | 80°F | 47°F | 0" | 0" |
| 1982 | 72°F | 49°F | 0.15" | 0" |
| 1981 | 83°F | 54°F | 0.43" | 0" |
| 1980 | 84°F | 49°F | 0" | 0" |
| 1979 | 76°F | 50°F | 0.03" | 0" |
| 1978 | 65°F | 54°F | 1.35" | 0" |
| 1977 | 80°F | 53°F | 0" | 0" |
| 1976 | 74°F | 55°F | 1.35" | 0" |
| 1975 | 85°F | 46°F | 0" | 0" |
| 1974 | 67°F | 38°F | 0.71" | -- |
| 1973 | 92°F | 50°F | 0" | -- |
| 1972 | 84°F | 54°F | 0.05" | -- |
| 1971 | 87°F | 48°F | 0" | -- |