Weather on August 26
Rancho Cucamonga, CA
55 Years of Data
About This Date
August 26th in Rancho Cucamonga, CA typically brings hot summer weather, with average highs around 94°F and lows near 65°F — a 29°F daily swing. Over 42 years of records, the warmest August 26th was in 2010 (90°F average), while the coldest was 1973 (65°F) — a 25°F range across recorded history. Rain or other precipitation has occurred on about 2% of August 26th dates historically, with the wettest August 26th recording 0.56" 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 Rancho Cucamonga, CA? Stay hydrated and seek shade during peak afternoon hours.
| 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° | — | — |
| 1984 | 100° | 63° | 81° | — | — |
| 1983 | 100° | 57° | 79° | — | — |
| 1982 | 94° | 66° | 80° | — | — |
| 1981 | 106° | 71° | 88° | — | — |
| 1980 | 95° | 57° | 76° | — | — |
| 1979 | 95° | 58° | 76° | — | — |
| 1978 | 83° | 52° | 67° | — | — |
| 1977 | 80° | 59° | 70° | — | — |
| 1976 | 94° | 59° | 76° | — | — |
| 1975 | 86° | 51° | 69° | — | — |
| 1974 | 94° | 58° | 76° | — | — |
| 1973coldest | 75° | 56° | 65° | — | — |
| 1972 | 81° | 62° | 71° | 0.56" | — |
| 1971 | 98° | 57° | 78° | — | — |
Rancho Cucamonga, CA Temperature Range by Month
Average monthly highs and lows. The shaded band shows the typical daily temperature range.
Rancho Cucamonga, CA Monthly Precipitation
Average rainfall per month, in inches.
Rancho Cucamonga, CA Daily Temperature Calendar
Average daily high temperature for every day of the year. Each cell is the climatological mean for that calendar day across 55 years of NOAA data.
Best Time to Visit Rancho Cucamonga, CA
Rancho Cucamonga, CA has no months that meet our "pleasant" threshold — every season has tradeoffs.