Weather on August 26
Fontana, CA
55 Years of Data
Avg High
95°F
Avg Low
65°F
Warmest
2010
90°F avg
Coldest
1973
67°F avg
About This Date
August 26th in Fontana, CA typically brings hot summer weather, with average highs around 95°F and lows near 65°F — a 30°F daily swing. Over 55 years of records, the warmest August 26th was in 2010 (90°F average), while the coldest was 1973 (67°F) — a 23°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 26th in Fontana, CA? Stay hydrated and seek shade during peak afternoon hours.
Warming Trend
1.1°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 93° | 69° | 81° | — | — |
| 2024 | 94° | 64° | 79° | — | — |
| 2023 | 98° | 64° | 81° | — | — |
| 2022 | 96° | 67° | 81° | — | — |
| 2021 | 103° | 72° | 87° | — | — |
| 2020 | 101° | 72° | 86° | — | — |
| 2019 | 99° | 72° | 85° | — | — |
| 2018 | 89° | 65° | 77° | — | — |
| 2017 | 102° | 64° | 83° | — | — |
| 2016 | 84° | 61° | 72° | — | — |
| 2015 | 100° | 75° | 88° | — | — |
| 2014 | 93° | 65° | 79° | — | — |
| 2013 | 92° | 74° | 83° | — | — |
| 2012 | 91° | 62° | 77° | — | — |
| 2011 | 104° | 73° | 89° | — | — |
| 2010warmest | 104° | 75° | 90° | — | — |
| 2009 | 103° | 66° | 84° | — | — |
| 2008 | 96° | 68° | 82° | — | — |
| 2007 | 88° | 67° | 77° | — | — |
| 2006 | 91° | 59° | 75° | — | — |
| 2005 | 100° | 71° | 86° | — | — |
| 2004 | 86° | 61° | 73° | — | — |
| 2003 | 97° | 70° | 83° | — | — |
| 2002 | 92° | 62° | 77° | — | — |
| 2001 | 99° | 65° | 82° | — | — |
| 2000 | 92° | 65° | 78° | — | — |
| 1999 | 100° | 71° | 86° | — | — |
| 1998 | 93° | 64° | 79° | — | — |
| 1997 | 97° | 63° | 80° | — | — |
| 1996 | 100° | 63° | 81° | — | — |
| 1995 | 99° | 58° | 78° | — | — |
| 1994 | 95° | 66° | 81° | — | — |
| 1993 | 99° | 69° | 84° | — | — |
| 1992 | 92° | 64° | 78° | — | — |
| 1991 | 92° | 63° | 77° | — | — |
| 1990 | 87° | 58° | 72° | — | — |
| 1989 | 84° | 59° | 72° | — | — |
| 1988 | 99° | 73° | 86° | — | — |
| 1987 | 89° | 56° | 72° | — | — |
| 1986 | 101° | 64° | 82° | — | — |
| 1985 | 102° | 69° | 86° | — | — |
| 1984 | 100° | 63° | 81° | — | — |
| 1983 | 100° | 57° | 79° | — | — |
| 1982 | 94° | 66° | 80° | — | — |
| 1981 | 106° | 71° | 88° | — | — |
| 1980 | 95° | 57° | 76° | — | — |
| 1979 | 92° | 57° | 74° | — | — |
| 1978 | 87° | 51° | 69° | — | — |
| 1977 | 83° | 61° | 72° | — | — |
| 1976 | 99° | 62° | 80° | — | — |
| 1975 | 90° | 58° | 74° | — | — |
| 1974 | 96° | 64° | 80° | — | — |
| 1973coldest | 77° | 58° | 67° | — | — |
| 1972 | 88° | 63° | 75° | — | — |
| 1971 | 105° | 68° | 87° | — | — |
55 years of data from FONTANA KAISER