As of 00:58 PDT

Montclair, CA weather in May

76°

Montclair, Sunday, 9 August, 00:58

Clear. Feels like 76°. High 100°, low 71°.

Pressure29.88 inHg

Wind4 mph SW

Humidity57%

Visibility6.2 mi

Dew point60°

See detailed hourly forecast

In May, Montclair, CA averages a high of 76.6° and a low of 54.1°. About 0.4 inches of precipitation fall over the month (2 wet days). The record high is 104.7° (1984) and the record low 40.3° (1964). Normals are computed over the last 60 years.

Day	High	Low	Chance of precip.	Record high	Record low
1	75.2°	52.2°	7%	92.8° (2014)	40.6° (1967)
2	76.3°	52.5°	3%	96.1° (2004)	44.1° (1967)
3	76.3°	53.2°	5%	97.3° (2004)	43.5° (1967)
4	75°	53.2°	12%	93.7° (1987)	44.2° (1969)
5	73.2°	52.7°	18%	97.2° (1990)	42.4° (1964)
6	73.2°	52.3°	18%	96.4° (1987)	41.9° (1975)
7	74.5°	52.5°	18%	97.5° (2020)	40.3° (1964)
8	75°	52.9°	8%	95.5° (1984)	42.4° (1965)
9	74.8°	53.1°	12%	99.1° (2025)	44.2° (1979)
10	75°	53.4°	5%	102.4° (2025)	42.3° (2003)
11	76.5°	53.2°	2%	97.2° (2025)	45.7° (2022)
12	77.5°	53.4°	7%	95.5° (1976)	43.2° (1967)
13	78.1°	54.3°	8%	96.6° (2013)	43.2° (1977)
14	77.7°	54.7°	2%	98.1° (2022)	46.6° (1968)
15	76.6°	54.3°	8%	100.4° (2014)	44.2° (1998)
16	77.4°	54.5°	10%	96.8° (1967)	46.2° (2011)
17	77.7°	54.7°	5%	98.4° (2008)	43.3° (1962)
18	77.5°	54.7°	5%	97.3° (2008)	43.5° (1977)
19	77.7°	54.3°	5%	93.7° (2008)	43.7° (1974)
20	76.8°	55°	7%	96.1° (2017)	45° (1974)
21	76.8°	54.7°	0%	96.3° (2000)	43.5° (1972)
22	76.6°	54.3°	12%	92.8° (1988)	44.8° (1975)
23	75.7°	54.9°	7%	93.9° (2001)	46.8° (1960)
24	76.6°	54.9°	5%	93.4° (2021)	44.2° (1980)
25	75.7°	55°	5%	97.2° (1974)	44.2° (1980)
26	76.6°	54.7°	2%	96.6° (1968)	45.3° (1980)
27	77.5°	54.5°	7%	96.8° (1968)	44.4° (1998)
28	79°	55.2°	3%	100° (1973)	46.8° (1971)
29	79°	55.8°	3%	104.7° (1984)	46.6° (1980)
30	79.7°	56.1°	2%	97.5° (2025)	46.4° (2011)
31	79.5°	56.1°	3%	94.6° (2025)	48.7° (1971)