Weather on August 27
Boise, ID
55 Years of Data
Avg High
87°F
Avg Low
57°F
Warmest
1986
81°F avg
Coldest
1977
56°F avg
About This Date
August 27th in Boise, ID typically brings warm summer weather, with average highs around 87°F and lows near 57°F — a 30°F daily swing. Over 55 years of records, the warmest August 27th was in 1986 (81°F average), while the coldest was 1977 (56°F) — a 25°F range across recorded history. Rain or other precipitation has occurred on about 4% of August 27th 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 August 27th in Boise, ID? Stay hydrated and seek shade during peak afternoon hours.
Warming Trend
1.0°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 77° | 64° | 71° | — | — |
| 2024 | 93° | 63° | 78° | — | — |
| 2023 | 93° | 65° | 79° | — | — |
| 2022 | 86° | 64° | 75° | — | — |
| 2021 | 80° | 54° | 67° | — | — |
| 2020 | 88° | 65° | 76° | — | — |
| 2019 | 89° | 53° | 71° | — | — |
| 2018 | 73° | 52° | 62° | 0.03" | — |
| 2017 | 99° | 62° | 80° | — | — |
| 2016 | 90° | 57° | 73° | — | — |
| 2015 | 93° | 70° | 81° | — | — |
| 2014 | 89° | 61° | 75° | — | — |
| 2013 | 92° | 63° | 77° | — | — |
| 2012 | 92° | 66° | 79° | — | — |
| 2011 | 94° | 66° | 80° | — | — |
| 2010 | 77° | 53° | 65° | — | — |
| 2009 | 101° | 62° | 81° | — | — |
| 2008 | 83° | 53° | 68° | — | — |
| 2007 | 84° | 53° | 69° | — | — |
| 2006 | 90° | 61° | 75° | — | — |
| 2005 | 93° | 59° | 76° | — | — |
| 2004 | 75° | 46° | 61° | — | — |
| 2003 | 89° | 62° | 76° | — | — |
| 2002 | 79° | 53° | 66° | 0.08" | — |
| 2001 | 96° | 61° | 78° | — | — |
| 2000 | 89° | 54° | 71° | — | — |
| 1999 | 95° | 65° | 80° | — | — |
| 1998 | 91° | 59° | 75° | — | — |
| 1997 | 86° | 54° | 70° | — | — |
| 1996 | 83° | 62° | 72° | — | — |
| 1995 | 90° | 47° | 68° | — | — |
| 1994 | 92° | 61° | 76° | — | — |
| 1993 | 83° | 47° | 65° | — | — |
| 1992 | 90° | 50° | 70° | — | — |
| 1991 | 87° | 66° | 77° | — | — |
| 1990 | 85° | 53° | 69° | — | — |
| 1989 | 77° | 51° | 64° | — | — |
| 1988 | 85° | 51° | 68° | — | — |
| 1987 | 87° | 57° | 72° | — | — |
| 1986warmest | 100° | 63° | 81° | — | — |
| 1985 | 94° | 60° | 77° | — | — |
| 1984 | 92° | 64° | 78° | — | — |
| 1983 | 88° | 54° | 71° | — | — |
| 1982 | 91° | 60° | 76° | — | — |
| 1981 | 88° | 49° | 68° | — | — |
| 1980 | 76° | 49° | 62° | — | — |
| 1979 | 80° | 58° | 69° | — | — |
| 1978 | 78° | 44° | 61° | — | — |
| 1977coldest | 66° | 47° | 56° | — | — |
| 1976 | 77° | 46° | 62° | — | — |
| 1975 | 91° | 58° | 74° | — | — |
| 1974 | 94° | 59° | 76° | — | — |
| 1973 | 81° | 54° | 67° | — | — |
| 1972 | 94° | 61° | 77° | — | — |
| 1971 | 90° | 61° | 75° | — | — |
55 years of data from BOISE AIR TERMINAL