As of 04:50 PDT

Aliso Viejo, CA weather in August

68°

Aliso Viejo, Sunday, 9 August, 04:50

Mostly clear. Feels like 69°. High 95°, low 68°.

Pressure29.85 inHg

Wind6 mph E

Humidity91%

Visibility6.2 mi

Dew point65°

See detailed hourly forecast

In August, Aliso Viejo, CA averages a high of 79.8° and a low of 64.7°. About 0.1 inches of precipitation fall over the month (0 wet days). The record high is 96.3° (2020) and the record low 55.4° (2025). Normals are computed over the last 60 years.

Day	High	Low	Chance of precip.	Record high	Record low
1	79.7°	64.4°	0%	88.5° (1972)	56.1° (2013)
2	79.7°	64.4°	2%	89.1° (1997)	55.4° (2025)
3	79.5°	64.6°	2%	87.1° (1998)	58.8° (2025)
4	79.5°	64.4°	0%	88.9° (1997)	57.2° (1962)
5	80.1°	64.4°	0%	92.8° (1997)	59° (1991)
6	80.1°	64.8°	0%	92.3° (1983)	59° (1991)
7	79.9°	64.9°	0%	90.3° (1983)	57.9° (1999)
8	79.9°	64.6°	2%	87.6° (1965)	58.3° (2010)
9	79.9°	64.8°	2%	90.9° (2018)	56.5° (2010)
10	79.3°	64.9°	2%	88.2° (1994)	59.2° (2013)
11	79.5°	64.9°	0%	90.1° (2000)	57.4° (2010)
12	79.5°	64.6°	2%	91.4° (1991)	56.8° (2010)
13	79.9°	64.6°	0%	93° (1983)	57.4° (1974)
14	79.2°	64.6°	0%	88.2° (2015)	57.7° (2010)
15	79.2°	64.6°	2%	90.5° (2015)	58.1° (1972)
16	79.3°	64.8°	3%	89.6° (1992)	59° (2019)
17	79.2°	64.8°	3%	91.9° (1992)	58.6° (1975)
18	78.6°	64.6°	5%	96.3° (2020)	57.9° (1975)
19	78.4°	64.6°	2%	90.3° (1986)	58.5° (1975)
20	78.8°	64.2°	2%	88.9° (1986)	59.4° (1980)
21	79.2°	64.4°	2%	89.8° (1969)	58.3° (1975)
22	79.3°	64.2°	0%	91.2° (1969)	57° (1968)
23	79.9°	64.2°	0%	90.3° (1968)	58.5° (1968)
24	79.9°	64.8°	0%	90° (1985)	58.1° (1960)
25	80.2°	64.9°	0%	93.4° (1985)	57.9° (1978)
26	80.8°	65.1°	2%	93° (1981)	57.7° (1990)
27	81.3°	65.3°	0%	93° (1981)	58.1° (1973)
28	81.5°	65.5°	0%	91.9° (1981)	59.9° (1973)
29	81.9°	65.7°	2%	93° (1998)	57.9° (2010)
30	81°	65.8°	0%	92.7° (1967)	57.7° (1964)
31	80.4°	64.9°	0%	95.2° (2017)	58.5° (1961)