Weather on August 28
Mission Viejo, CA
55 Years of Data
Avg High
88°F
Avg Low
63°F
Warmest
2009
86°F avg
Coldest
1973
67°F avg
About This Date
August 28th in Mission Viejo, CA typically brings warm summer weather, with average highs around 88°F and lows near 63°F — a 25°F daily swing. Over 55 years of records, the warmest August 28th was in 2009 (86°F average), while the coldest was 1973 (67°F) — a 19°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 Mission Viejo, CA? Stay hydrated and seek shade during peak afternoon hours.
Warming Trend
0.8°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 85° | 66° | 75° | — | — |
| 2024 | 82° | 61° | 71° | — | — |
| 2023 | 97° | 72° | 84° | — | — |
| 2022 | 80° | 64° | 72° | — | — |
| 2021 | 90° | 59° | 74° | — | — |
| 2020 | 90° | 62° | 76° | — | — |
| 2019 | 82° | 64° | 73° | — | — |
| 2018 | 82° | 63° | 72° | — | — |
| 2017 | 100° | 62° | 81° | — | — |
| 2016 | 86° | 59° | 73° | — | — |
| 2015 | 97° | 72° | 84° | — | — |
| 2014 | 97° | 71° | 84° | — | — |
| 2013 | 95° | 68° | 82° | — | — |
| 2012 | 94° | 68° | 81° | — | — |
| 2011 | 91° | 67° | 79° | — | — |
| 2010 | 76° | 58° | 67° | — | — |
| 2009warmest | 101° | 72° | 86° | — | — |
| 2008 | 87° | 61° | 74° | — | — |
| 2007 | 97° | 64° | 80° | — | — |
| 2006 | 92° | 63° | 77° | — | — |
| 2005 | 99° | 66° | 82° | — | — |
| 2004 | 88° | 58° | 73° | — | — |
| 2003 | 88° | 63° | 75° | — | — |
| 2002 | 79° | 59° | 69° | — | — |
| 2001 | 81° | 57° | 69° | — | — |
| 2000 | 81° | 63° | 72° | — | — |
| 1999 | 92° | 58° | 75° | — | — |
| 1998 | 97° | 66° | 81° | — | — |
| 1997 | 83° | 63° | 73° | — | — |
| 1996 | 88° | 59° | 73° | — | — |
| 1995 | 92° | 64° | 78° | — | — |
| 1994 | 87° | 66° | 77° | — | — |
| 1993 | 82° | 64° | 73° | — | — |
| 1992 | 95° | 64° | 80° | — | — |
| 1991 | 81° | 60° | 70° | — | — |
| 1990 | 87° | 60° | 74° | — | — |
| 1989 | 77° | 59° | 68° | — | — |
| 1988 | 80° | 63° | 71° | — | — |
| 1987 | 79° | 60° | 69° | — | — |
| 1986 | 88° | 63° | 75° | — | — |
| 1985 | 92° | 66° | 79° | — | — |
| 1984 | 91° | 70° | 80° | — | — |
| 1983 | 94° | 67° | 80° | — | — |
| 1982 | 84° | 66° | 75° | — | — |
| 1981 | 95° | 68° | 82° | — | — |
| 1980 | 81° | 62° | 71° | — | — |
| 1979 | 79° | 66° | 72° | — | — |
| 1978 | 83° | 60° | 71° | — | — |
| 1977 | 81° | 63° | 72° | — | — |
| 1976 | 86° | 64° | 75° | — | — |
| 1975 | 82° | 52° | 67° | — | — |
| 1974 | 82° | 56° | 69° | — | — |
| 1973coldest | 79° | 55° | 67° | — | — |
| 1972 | 89° | 63° | 76° | — | — |
| 1971 | 92° | 66° | 79° | — | — |
55 years of data from EL TORO MCAS