As of 23:14 PDT

Montclair, CA weather in August

78°

Montclair, Saturday, 8 August, 23:14

Clear. Feels like 78°. High 96°, low 68°.

Pressure29.88 inHg

Wind3 mph W

Humidity50%

Visibility6.2 mi

Dew point58°

See detailed hourly forecast

In August, Montclair, CA averages a high of 90.8° and a low of 66°. About 0.1 inches of precipitation fall over the month (1 wet days). The record high is 109° (2020) and the record low 52.5° (1968). Normals are computed over the last 60 years.

Day	High	Low	Chance of precip.	Record high	Record low
1	91.4°	66.9°	0%	101.3° (2017)	59.7° (1976)
2	91.4°	66.9°	2%	101.8° (2021)	58.5° (1976)
3	91°	66.2°	2%	102.6° (2024)	56.7° (1976)
4	91.2°	65.8°	0%	103.3° (1998)	57.4° (1962)
5	92.1°	66.4°	0%	106° (2024)	55.9° (1991)
6	91.6°	66.4°	2%	102.6° (2018)	57.2° (1991)
7	91.4°	66.2°	0%	105.3° (2018)	57.2° (1976)
8	91.6°	65.8°	0%	100.2° (2025)	57.6° (2010)
9	91.4°	66.4°	3%	106° (2018)	57.2° (2010)
10	90.7°	66.6°	2%	99.5° (2022)	57.9° (1999)
11	91°	66.4°	0%	99.7° (2022)	56.7° (2010)
12	90.9°	66.6°	3%	100.6° (2022)	57.2° (2010)
13	90.9°	66.4°	0%	104.4° (1996)	57.4° (1988)
14	90°	66.2°	0%	103.8° (2020)	57.6° (1985)
15	90°	65.8°	3%	108.7° (2020)	56.8° (1976)
16	90°	65.7°	3%	102.2° (1992)	56.5° (1972)
17	89.8°	65.8°	3%	102.7° (1992)	57.7° (2006)
18	88.7°	65.7°	7%	109° (2020)	56.7° (1978)
19	88.3°	64.9°	5%	105.1° (2020)	57.4° (1976)
20	89.1°	64.8°	2%	103.5° (2024)	57.9° (1972)
21	89.1°	64.8°	3%	102.7° (1969)	57.2° (1979)
22	89.6°	64.8°	0%	102.7° (1969)	52.5° (1968)
23	90.7°	64.9°	0%	101.7° (1998)	56.1° (1978)
24	90.7°	65.5°	0%	104.2° (1985)	56.3° (1978)
25	90.7°	66°	2%	105.6° (1985)	56.7° (1978)
26	91.2°	66.2°	2%	104.5° (1981)	55.4° (1990)
27	92.3°	66.2°	0%	105.6° (1981)	54.5° (1973)
28	93°	66.7°	0%	105.4° (1981)	56.7° (1973)
29	93.2°	67.1°	2%	105.3° (2023)	56.1° (2010)
30	91.9°	67.3°	2%	106.7° (2017)	56.7° (2010)
31	90.9°	66°	2%	106.2° (2017)	56.7° (1964)