As of 11:57 PDT

Rosemont, CA weather in October

93°

Rosemont, Sunday, 9 August, 11:57

Clear. Feels like 94°. High 102°, low 65°.

Pressure29.80 inHg

Wind3.4 mph SW

Humidity36%

Visibility6.2 mi

Dew point62°

See detailed hourly forecast

In October, Rosemont, CA averages a high of 76.7° and a low of 53°. About 1.5 inches of precipitation fall over the month (4 wet days). The record high is 103.6° (2024) and the record low 37.9° (2019). Normals are computed over the last 60 years.

Day	High	Low	Chance of precip.	Record high	Record low
1	82.6°	57.2°	3%	100.8° (2024)	42.8° (1971)
2	81.7°	56.7°	13%	103.6° (2024)	43° (2019)
3	81.7°	55.4°	8%	101.8° (2024)	47.1° (2017)
4	80.6°	55.9°	10%	99.3° (2024)	45.1° (2019)
5	80.6°	55.2°	7%	100.9° (2024)	47.1° (2017)
6	81°	54.5°	7%	101.7° (2024)	44.2° (2007)
7	81.5°	55.4°	3%	102° (2024)	46.2° (2007)
8	80.6°	54.9°	5%	100.4° (2024)	46.2° (1968)
9	80.1°	55°	10%	92.5° (1992)	45.9° (1973)
10	78.6°	54.5°	13%	95.9° (1991)	46.6° (1973)
11	78.3°	54.1°	12%	94.6° (1991)	45.9° (1997)
12	78.4°	54.1°	8%	92.1° (2010)	43.5° (1981)
13	79°	54.1°	7%	93.7° (2015)	44.4° (2017)
14	78.4°	54.1°	13%	94.1° (2010)	45.1° (1985)
15	77.4°	53.4°	13%	94.6° (2020)	42.4° (1981)
16	76.5°	53.4°	13%	95.2° (2020)	44.6° (1971)
17	76.8°	52.3°	12%	92.7° (2020)	41.4° (1984)
18	76.6°	52°	5%	92.3° (2020)	40.5° (1984)
19	76.1°	52.3°	7%	91.4° (2023)	41.4° (2021)
20	75.7°	52.7°	15%	93.7° (1991)	44.6° (1969)
21	75.2°	52°	12%	87.4° (2020)	43.7° (1961)
22	74.5°	52.2°	17%	85.8° (1964)	42.6° (1961)
23	74.1°	51.6°	18%	87.8° (2019)	43.2° (1984)
24	73.9°	51.6°	15%	86.5° (2019)	42.8° (1971)
25	73°	51.8°	17%	87.1° (2003)	43.9° (1971)
26	72.9°	50.5°	12%	87.4° (2003)	42.3° (1989)
27	71.8°	50.2°	12%	85.1° (2003)	38.5° (2023)
28	70.3°	49.6°	15%	83.7° (2003)	38.7° (2023)
29	70.2°	49.5°	15%	80.2° (1965)	39.6° (1971)
30	69.3°	48.6°	23%	83.1° (2015)	39° (1971)
31	70°	48.4°	17%	82.9° (2015)	37.9° (2019)