As of 12:02 PDT

Rancho Cucamonga, CA weather in October

93°

Rancho Cucamonga, Sunday, 9 August, 12:02

Clear. Feels like 94°. High 95°, low 69°.

Pressure29.88 inHg

Wind10 mph SE

Humidity37%

Visibility6.2 mi

Dew point61°

See detailed hourly forecast

In October, Rancho Cucamonga, CA averages a high of 78.5° and a low of 55.8°. About 0.9 inches of precipitation fall over the month (3 wet days). The record high is 102.7° (2024) and the record low 32.4° (1971). Normals are computed over the last 60 years.

Day	High	Low	Chance of precip.	Record high	Record low
1	83.5°	60.3°	8%	102.4° (2020)	45.3° (1971)
2	82.2°	59.5°	13%	102.7° (2024)	48.6° (1971)
3	81.5°	59.2°	8%	100° (2020)	46.9° (2002)
4	81.1°	58.6°	8%	99.7° (1987)	47.8° (1989)
5	81.5°	58.5°	15%	97.7° (2014)	47.5° (1969)
6	81.7°	58.3°	7%	99.9° (2024)	46.4° (2009)
7	81.7°	58.3°	10%	99.7° (1996)	45.9° (2011)
8	81.5°	57.6°	8%	97.3° (1996)	47.1° (2011)
9	80.8°	57.2°	10%	95.9° (2015)	45.5° (1961)
10	80.1°	56.5°	7%	99.5° (1991)	43.2° (1961)
11	79°	55.9°	15%	95.4° (1991)	45° (1973)
12	79.7°	55.6°	7%	94.5° (2020)	43.5° (2008)
13	79.9°	56.1°	10%	96.1° (1978)	45.1° (1969)
14	79.2°	55.9°	13%	95.7° (2020)	42.8° (1981)
15	78.6°	56.3°	10%	97.7° (2020)	45.7° (1981)
16	78.6°	55.6°	8%	97.9° (2020)	42.3° (1981)
17	78.6°	55.4°	12%	94.5° (2012)	41.7° (1971)
18	78.6°	55.2°	15%	94.6° (2023)	43° (1971)
19	78.8°	55.2°	12%	94.6° (2023)	41.2° (1971)
20	77.7°	55.9°	12%	94.6° (2003)	45.5° (1969)
21	77°	55.2°	10%	94.6° (2003)	45° (1971)
22	77.4°	54.5°	8%	93.6° (2003)	43.2° (1996)
23	77.2°	54.7°	13%	97.3° (2017)	44.4° (1996)
24	77°	54.9°	10%	95.2° (2017)	43.9° (1975)
25	76.5°	54.3°	10%	94.3° (2017)	38.8° (1971)
26	75.9°	53.6°	12%	90.7° (1965)	42.1° (1970)
27	75.2°	53.6°	12%	91.6° (2008)	41.7° (1996)
28	74.5°	52.5°	15%	92.5° (2008)	41° (1996)
29	73.4°	52°	10%	89.4° (1965)	32.4° (1971)
30	72.9°	51.6°	18%	89.4° (1966)	32.7° (1971)
31	73.6°	51.4°	8%	89.2° (1966)	37.8° (1972)