As of 03:58 PDT

Rosemont, CA weather in August

67°

Rosemont, Sunday, 9 August, 03:58

Clear. Feels like 66°. High 104°, low 67°.

Pressure29.80 inHg

Wind5.1 mph S

Humidity69%

Visibility6.2 mi

Dew point56°

See detailed hourly forecast

In August, Rosemont, CA averages a high of 90.8° and a low of 60.6°. About 0.1 inches of precipitation fall over the month (0 wet days). The record high is 110.7° (2020) and the record low 51.6° (1980). Normals are computed over the last 60 years.

Day	High	Low	Chance of precip.	Record high	Record low
1	93°	61.2°	0%	104° (1993)	54.1° (1960)
2	92.8°	61.3°	0%	102.6° (2017)	55.6° (1964)
3	92.1°	61°	0%	104.5° (2024)	54.9° (1963)
4	90.7°	60.8°	0%	106.5° (1998)	53.8° (1963)
5	90.3°	60.4°	0%	102° (1978)	55.6° (1970)
6	91.8°	60.6°	0%	106.5° (2023)	54.5° (2013)
7	91.8°	61.3°	0%	104.5° (2024)	54.5° (1975)
8	92.3°	61.2°	2%	103.1° (1984)	54.5° (2006)
9	92.8°	61.3°	2%	107.1° (1990)	53.6° (1973)
10	92.1°	61.2°	0%	104° (1996)	54.1° (1960)
11	91.6°	60.8°	0%	104.2° (2021)	55.4° (1987)
12	91.2°	60.4°	0%	100° (1996)	55.6° (2010)
13	90.9°	60.4°	0%	101.8° (2020)	54.5° (1988)
14	90.7°	61.2°	2%	107.4° (2020)	55° (1985)
15	91°	60.6°	2%	109.9° (2020)	54.9° (1972)
16	91.9°	60.6°	0%	108.9° (2020)	52° (1976)
17	90.9°	61°	2%	110.7° (2020)	55.6° (1974)
18	89.6°	60.4°	3%	110.3° (2020)	54.3° (1973)
19	88.7°	59.7°	0%	108° (2020)	53.8° (2010)
20	88.7°	59.4°	3%	105.6° (2022)	53.8° (1996)
21	88.9°	59.9°	2%	105.6° (2025)	53.4° (1970)
22	89.1°	59.9°	7%	104° (2025)	53.6° (1973)
23	89.6°	60.3°	0%	102.4° (2022)	52.2° (1973)
24	90.1°	60.1°	2%	104.4° (2010)	53.1° (1970)
25	89.4°	60.1°	0%	105.8° (2010)	53.8° (2002)
26	89.8°	59.5°	0%	103.8° (2017)	53.8° (1995)
27	91°	60.4°	0%	106.3° (2017)	53.6° (2012)
28	91.9°	61°	2%	106.2° (2017)	55.2° (1960)
29	90.7°	60.6°	0%	105.6° (2021)	51.6° (1980)
30	89.8°	60.8°	2%	102.6° (2025)	53.4° (1966)
31	90.3°	60.3°	2%	103.1° (2025)	53.1° (1966)