As of 13:25 PDT

Rialto, CA weather in October

97°

Rialto, Sunday, 9 August, 13:25

Clear. Feels like 96°. High 97°, low 69°.

Pressure29.85 inHg

Wind6 mph W

Humidity26%

Visibility6.2 mi

Dew point57°

See detailed hourly forecast

In October, Rialto, CA averages a high of 78.6° and a low of 53.9°. About 0.8 inches of precipitation fall over the month (3 wet days). The record high is 104.7° (2024) and the record low 30.4° (1971). Normals are computed over the last 60 years.

Day	High	Low	Chance of precip.	Record high	Record low
1	84°	59°	8%	104.4° (2020)	43° (1971)
2	82.6°	58.1°	13%	104.7° (2024)	45.3° (1971)
3	81.9°	57.4°	3%	102.7° (2020)	45.3° (2002)
4	81.3°	57°	8%	99.3° (2014)	45.3° (1989)
5	81.7°	56.3°	13%	98.6° (2014)	43.7° (1969)
6	81.9°	55.9°	7%	102.6° (2024)	45.5° (2009)
7	81.9°	56.1°	10%	99.3° (1996)	44.4° (2007)
8	81.9°	55.6°	8%	98.4° (1996)	45.3° (1970)
9	80.8°	55.6°	8%	96.4° (2015)	46.4° (1970)
10	80.1°	55.2°	5%	99.1° (1991)	40.8° (1961)
11	79°	55°	13%	95.5° (1991)	43.2° (1973)
12	80.1°	54.1°	5%	98.2° (2020)	40.5° (2008)
13	80.1°	54.1°	8%	97.3° (1978)	42.3° (2021)
14	79.3°	53.8°	13%	97.5° (2020)	43° (1981)
15	78.6°	54.5°	10%	100.8° (2020)	42.1° (1966)
16	78.6°	53.4°	8%	97.3° (2020)	39.9° (1981)
17	78.6°	52.9°	10%	95.7° (1988)	41° (1971)
18	78.8°	53.2°	12%	97° (2023)	42.4° (1980)
19	79°	53.1°	12%	98.1° (2023)	38.7° (1971)
20	77.9°	54°	12%	96.1° (2003)	42.4° (1971)
21	77°	52.7°	10%	95° (2003)	42.3° (1996)
22	77.2°	52.5°	8%	94.5° (2003)	38.8° (1996)
23	77.2°	52.5°	13%	97.5° (2017)	41.5° (1996)
24	76.8°	52.9°	10%	95.2° (2017)	39.2° (1975)
25	76.3°	52.3°	8%	95.5° (2017)	39.6° (1971)
26	75.7°	51.3°	10%	91.9° (2018)	40.1° (1970)
27	75.2°	51.3°	12%	93° (2017)	39.2° (1996)
28	74.5°	50.9°	13%	93° (2017)	36.7° (1970)
29	73°	50.7°	10%	89.8° (2025)	33.1° (1971)
30	72.5°	49.5°	18%	89.8° (2025)	30.4° (1971)
31	73.2°	49.6°	8%	89.1° (2020)	35.8° (1991)