Weather on September 7
Boise, ID
55 Years of Data
Avg High
83°F
Avg Low
54°F
Warmest
2022
86°F avg
Coldest
1976
51°F avg
About This Date
September 7th in Boise, ID typically brings warm fall weather, with average highs around 83°F and lows near 54°F — a 29°F daily swing. Over 55 years of records, the warmest September 7th was in 2022 (86°F average), while the coldest was 1976 (51°F) — a 35°F range across recorded history. Rain or other precipitation has occurred on about 11% of September 7th dates historically, with the wettest September 7th recording 0.69" of rain. The last decade has been 7.4°F warmer on this date compared to 20-30 years ago.
The last decade has been 7.4°F warmer on this date compared to 20-30 years ago.
Planning for September 7th in Boise, ID? Stay hydrated and seek shade during peak afternoon hours.
Warming Trend
1.9°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 85° | 60° | 72° | — | — |
| 2024 | 97° | 65° | 81° | — | — |
| 2023 | 89° | 59° | 74° | — | — |
| 2022warmest | 104° | 68° | 86° | — | — |
| 2021 | 94° | 60° | 77° | — | — |
| 2020 | 88° | 55° | 71° | — | — |
| 2019 | 84° | 58° | 71° | — | — |
| 2018 | 90° | 61° | 75° | — | — |
| 2017 | 90° | 63° | 76° | — | — |
| 2016 | 75° | 48° | 62° | — | — |
| 2015 | 77° | 47° | 62° | — | — |
| 2014 | 91° | 56° | 73° | — | — |
| 2013 | 82° | 53° | 68° | — | — |
| 2012 | 88° | 55° | 71° | — | — |
| 2011 | 95° | 62° | 79° | — | — |
| 2010 | 87° | 50° | 69° | — | — |
| 2009 | 72° | 48° | 60° | — | — |
| 2008 | 83° | 53° | 68° | — | — |
| 2007 | 87° | 55° | 71° | — | — |
| 2006 | 85° | 63° | 74° | — | — |
| 2005 | 89° | 53° | 71° | — | — |
| 2004 | 84° | 52° | 68° | — | — |
| 2003 | 85° | 62° | 73° | — | — |
| 2002 | 68° | 50° | 59° | 0.46" | — |
| 2001 | 73° | 47° | 60° | — | — |
| 2000 | 79° | 49° | 64° | — | — |
| 1999 | 72° | 43° | 57° | — | — |
| 1998 | 94° | 69° | 81° | 0.69" | — |
| 1997 | 89° | 59° | 74° | — | — |
| 1996 | 80° | 48° | 64° | — | — |
| 1995 | 75° | 53° | 64° | — | — |
| 1994 | 95° | 56° | 75° | — | — |
| 1993 | 86° | 49° | 67° | — | — |
| 1992 | 72° | 34° | 53° | — | — |
| 1991 | 87° | 69° | 78° | — | — |
| 1990 | 92° | 63° | 77° | — | — |
| 1989 | 78° | 42° | 60° | — | — |
| 1988 | 82° | 47° | 64° | — | — |
| 1987 | 85° | 50° | 67° | — | — |
| 1986 | 93° | 65° | 79° | 0.03" | — |
| 1985 | 75° | 55° | 65° | 0.08" | — |
| 1984 | 70° | 51° | 60° | — | — |
| 1983 | 87° | 48° | 68° | — | — |
| 1982 | 86° | 50° | 68° | — | — |
| 1981 | 89° | 56° | 72° | — | — |
| 1980 | 80° | 67° | 73° | — | — |
| 1979 | 96° | 56° | 76° | — | — |
| 1978 | 57° | 49° | 53° | 0.56" | — |
| 1977 | 92° | 57° | 74° | — | — |
| 1976coldest | 68° | 34° | 51° | — | — |
| 1975 | 90° | 54° | 72° | — | — |
| 1974 | 87° | 51° | 69° | — | — |
| 1973 | 65° | 51° | 58° | 0.46" | — |
| 1972 | 75° | 44° | 60° | — | — |
| 1971 | 70° | 48° | 59° | — | — |
55 years of data from BOISE AIR TERMINAL