Weather on August 26
Boise, ID
55 Years of Data
Avg High
88°F
Avg Low
56°F
Warmest
2010
87°F avg
Coldest
1976
55°F avg
About This Date
August 26th in Boise, ID typically brings warm summer weather, with average highs around 88°F and lows near 56°F — a 32°F daily swing. Over 55 years of records, the warmest August 26th was in 2010 (87°F average), while the coldest was 1976 (55°F) — a 32°F range across recorded history. Rain or other precipitation has occurred on about 9% of August 26th dates historically, with the wettest August 26th recording 3.71" 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 26th in Boise, ID? Stay hydrated and seek shade during peak afternoon hours.
Warming Trend
1.6°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 88° | 65° | 76° | — | — |
| 2024 | 84° | 52° | 68° | — | — |
| 2023 | 97° | 67° | 82° | 3.71" | — |
| 2022 | 96° | 66° | 81° | — | — |
| 2021 | 84° | 59° | 72° | — | — |
| 2020 | 91° | 63° | 77° | — | — |
| 2019 | 83° | 52° | 67° | — | — |
| 2018 | 74° | 56° | 65° | — | — |
| 2017 | 96° | 60° | 78° | — | — |
| 2016 | 86° | 57° | 72° | — | — |
| 2015 | 95° | 62° | 79° | — | — |
| 2014 | 82° | 55° | 69° | — | — |
| 2013 | 91° | 61° | 76° | — | — |
| 2012 | 99° | 62° | 80° | — | — |
| 2011 | 98° | 67° | 82° | — | — |
| 2010warmest | 104° | 69° | 87° | 0.03" | — |
| 2009 | 96° | 63° | 79° | — | — |
| 2008 | 73° | 51° | 62° | — | — |
| 2007 | 88° | 57° | 72° | — | — |
| 2006 | 82° | 53° | 68° | — | — |
| 2005 | 92° | 58° | 75° | — | — |
| 2004 | 71° | 51° | 61° | 0.03" | — |
| 2003 | 86° | 65° | 75° | 0.05" | — |
| 2002 | 83° | 59° | 71° | — | — |
| 2001 | 100° | 59° | 80° | — | — |
| 2000 | 89° | 61° | 75° | — | — |
| 1999 | 96° | 61° | 78° | — | — |
| 1998 | 86° | 55° | 71° | — | — |
| 1997 | 92° | 57° | 74° | — | — |
| 1996 | 104° | 64° | 84° | — | — |
| 1995 | 88° | 55° | 71° | — | — |
| 1994 | 88° | 55° | 71° | — | — |
| 1993 | 74° | 39° | 56° | — | — |
| 1992 | 81° | 43° | 62° | — | — |
| 1991 | 90° | 55° | 72° | — | — |
| 1990 | 77° | 49° | 63° | — | — |
| 1989 | 80° | 48° | 64° | — | — |
| 1988 | 88° | 52° | 70° | — | — |
| 1987 | 83° | 51° | 67° | — | — |
| 1986 | 95° | 56° | 75° | — | — |
| 1985 | 95° | 58° | 76° | — | — |
| 1984 | 91° | 57° | 74° | — | — |
| 1983 | 87° | 52° | 69° | — | — |
| 1982 | 93° | 56° | 74° | — | — |
| 1981 | 94° | 53° | 73° | — | — |
| 1980 | 87° | 47° | 67° | — | — |
| 1979 | 81° | 53° | 67° | — | — |
| 1978 | 74° | 49° | 61° | — | — |
| 1977 | 66° | 53° | 60° | 0.15" | — |
| 1976coldest | 66° | 45° | 55° | — | — |
| 1975 | 93° | 53° | 73° | — | — |
| 1974 | 95° | 59° | 77° | — | — |
| 1973 | 77° | 45° | 61° | — | — |
| 1972 | 90° | 58° | 74° | — | — |
| 1971 | 94° | 58° | 76° | — | — |
55 years of data from BOISE AIR TERMINAL