Weather on August 26
Simi Valley, CA
55 Years of Data
Avg High
91°F
Avg Low
65°F
Warmest
2015
87°F avg
Coldest
2012
64°F avg
About This Date
August 26th in Simi Valley, CA typically brings hot summer weather, with average highs around 91°F and lows near 65°F — a 26°F daily swing. Over 30 years of records, the warmest August 26th was in 2015 (87°F average), while the coldest was 2012 (64°F) — a 23°F range across recorded history. This date has historically been dry, with little recorded precipitation. The last decade has been 1.8°F warmer on this date compared to 20-30 years ago.
The last decade has been 1.8°F warmer on this date compared to 20-30 years ago.
Planning for August 26th in Simi Valley, 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° | 65° | 79° | — | — |
| 2024 | 91° | 65° | 78° | — | — |
| 2023 | 94° | 65° | 79° | — | — |
| 2022 | 93° | 65° | 79° | — | — |
| 2021 | 99° | 76° | 87° | — | — |
| 2020 | 99° | 70° | 84° | — | — |
| 2019 | 99° | 72° | 85° | — | — |
| 2018 | 85° | 59° | 72° | — | — |
| 2017 | 103° | 63° | 83° | — | — |
| 2016 | 84° | 57° | 71° | — | — |
| 2015warmest | 99° | 76° | 87° | — | — |
| 2014 | 90° | 61° | 75° | — | — |
| 2013 | 93° | 73° | 83° | — | — |
| 2012coldest | 75° | 54° | 64° | — | — |
| 2011 | 93° | 68° | 81° | — | — |
| 2010 | 93° | 66° | 80° | — | — |
| 2009 | 93° | 63° | 78° | — | — |
| 2008 | 84° | 63° | 73° | — | — |
| 2007 | 82° | 63° | 72° | — | — |
| 2006 | 79° | 57° | 68° | — | — |
| 2005 | 90° | 70° | 80° | — | — |
| 2004 | 75° | 59° | 67° | — | — |
| 2003 | 86° | 64° | 75° | — | — |
| 2002 | 82° | 63° | 72° | — | — |
| 2001 | 101° | 67° | 84° | — | — |
| 2000 | 94° | 65° | 79° | — | — |
| 1999 | 103° | 70° | 86° | — | — |
| 1998 | 95° | 61° | 78° | — | — |
| 1997 | 92° | 63° | 77° | — | — |
| 1996 | 96° | 66° | 81° | — | — |
30 years of data from SIMI VALLEY CALIFORNIA