Weather on August 28
Boise, ID
55 Years of Data
Avg High
88°F
Avg Low
57°F
Warmest
2009
86°F avg
Coldest
1980
59°F avg
About This Date
August 28th in Boise, ID typically brings warm summer weather, with average highs around 88°F and lows near 57°F — a 31°F daily swing. Over 55 years of records, the warmest August 28th was in 2009 (86°F average), while the coldest was 1980 (59°F) — a 27°F range across recorded history. This date has historically been dry, with little recorded precipitation. 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 28th in Boise, ID? Stay hydrated and seek shade during peak afternoon hours.
Warming Trend
1.2°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 87° | 61° | 74° | — | — |
| 2024 | 76° | 50° | 63° | — | — |
| 2023 | 99° | 66° | 82° | — | — |
| 2022 | 84° | 53° | 69° | — | — |
| 2021 | 83° | 51° | 67° | — | — |
| 2020 | 90° | 59° | 74° | — | — |
| 2019 | 97° | 59° | 78° | — | — |
| 2018 | 78° | 46° | 62° | — | — |
| 2017 | 97° | 66° | 81° | — | — |
| 2016 | 90° | 58° | 74° | — | — |
| 2015 | 92° | 69° | 80° | — | — |
| 2014 | 91° | 61° | 76° | — | — |
| 2013 | 95° | 74° | 84° | — | — |
| 2012 | 95° | 62° | 79° | — | — |
| 2011 | 100° | 66° | 83° | — | — |
| 2010 | 75° | 51° | 63° | — | — |
| 2009warmest | 102° | 69° | 86° | — | — |
| 2008 | 83° | 52° | 67° | — | — |
| 2007 | 86° | 52° | 69° | — | — |
| 2006 | 98° | 64° | 81° | — | — |
| 2005 | 99° | 61° | 80° | — | — |
| 2004 | 83° | 52° | 67° | — | — |
| 2003 | 88° | 57° | 72° | — | — |
| 2002 | 82° | 53° | 68° | — | — |
| 2001 | 92° | 59° | 75° | — | — |
| 2000 | 84° | 50° | 67° | — | — |
| 1999 | 90° | 71° | 80° | — | — |
| 1998 | 98° | 60° | 79° | — | — |
| 1997 | 84° | 56° | 70° | — | — |
| 1996 | 83° | 56° | 69° | — | — |
| 1995 | 93° | 54° | 73° | — | — |
| 1994 | 92° | 62° | 77° | — | — |
| 1993 | 80° | 48° | 64° | — | — |
| 1992 | 87° | 53° | 70° | — | — |
| 1991 | 85° | 52° | 68° | — | — |
| 1990 | 87° | 53° | 70° | — | — |
| 1989 | 83° | 50° | 66° | — | — |
| 1988 | 93° | 58° | 75° | — | — |
| 1987 | 94° | 58° | 76° | — | — |
| 1986 | 91° | 66° | 79° | — | — |
| 1985 | 89° | 54° | 71° | — | — |
| 1984 | 87° | 53° | 70° | — | — |
| 1983 | 92° | 55° | 73° | — | — |
| 1982 | 90° | 63° | 76° | — | — |
| 1981 | 91° | 50° | 71° | — | — |
| 1980coldest | 75° | 42° | 59° | — | — |
| 1979 | 74° | 57° | 65° | — | — |
| 1978 | 82° | 48° | 65° | — | — |
| 1977 | 72° | 51° | 61° | — | — |
| 1976 | 86° | 49° | 67° | — | — |
| 1975 | 72° | 58° | 65° | — | — |
| 1974 | 95° | 53° | 74° | — | — |
| 1973 | 81° | 46° | 63° | — | — |
| 1972 | 97° | 60° | 78° | — | — |
| 1971 | 91° | 59° | 75° | — | — |
55 years of data from BOISE AIR TERMINAL