As of 11:15 PDT

Pomona, CA weather in September

89°

Pomona, Sunday, 9 August, 11:15

Clear. Feels like 92°. High 96°, low 70°.

Pressure29.88 inHg

Wind4 mph W

Humidity47%

Visibility6.2 mi

Dew point66°

See detailed hourly forecast

In September, Pomona, CA averages a high of 86.9° and a low of 63°. About 0.4 inches of precipitation fall over the month (1 wet days). The record high is 115.5° (2020) and the record low 47.8° (1982). Normals are computed over the last 60 years.

Day	High	Low	Chance of precip.	Record high	Record low
1	90.1°	64.9°	3%	104.9° (2017)	54.9° (1973)
2	90.7°	65.7°	8%	106° (1982)	53.4° (1964)
3	90.3°	66°	7%	108.1° (1988)	55° (2000)
4	91.2°	66.2°	3%	110.1° (2022)	56.1° (1999)
5	91°	66.6°	3%	115.5° (2020)	55.8° (1970)
6	90.9°	66.2°	3%	114.3° (2024)	55.4° (1964)
7	90.5°	65.5°	3%	107.6° (2022)	53.4° (1964)
8	89.4°	64.9°	3%	109° (2024)	51.3° (1965)
9	88.2°	64.9°	7%	108.3° (2024)	52.9° (1961)
10	86.7°	64.2°	7%	101.8° (1983)	53.1° (2010)
11	86.5°	63.3°	5%	105.1° (1983)	52.9° (1991)
12	86°	62.6°	2%	107.4° (1971)	51.6° (1972)
13	85.1°	62.4°	5%	110.1° (1971)	52.3° (1966)
14	85.6°	61.9°	2%	103.3° (2014)	52° (1970)
15	85.6°	61.9°	5%	102.7° (2014)	51.1° (1986)
16	85.1°	62.4°	7%	103.5° (2014)	52.3° (1986)
17	84.9°	61.5°	2%	101.5° (2020)	53.2° (1977)
18	84.4°	61.5°	3%	101.1° (2020)	50.9° (1993)
19	83.8°	61.2°	3%	100.6° (1984)	52.9° (1978)
20	83.3°	60.6°	5%	99.5° (2015)	50.7° (1965)
21	84.6°	60.6°	3%	102.4° (2021)	50° (1986)
22	86°	61.3°	5%	99.7° (2009)	50.4° (1986)
23	86.9°	61.5°	3%	101.3° (1992)	51.6° (1961)
24	86.7°	61.9°	7%	102° (1978)	52.9° (1986)
25	86.2°	61.9°	5%	102.6° (1963)	51.6° (2005)
26	84.9°	62.1°	5%	103.1° (2010)	52.3° (1986)
27	85.3°	61.3°	2%	107.1° (2010)	50.5° (1986)
28	85.3°	61.7°	3%	104.2° (1963)	50.5° (1971)
29	84.9°	61.5°	8%	102.4° (1963)	48.7° (1971)
30	85.6°	61°	3%	106.3° (2020)	47.8° (1982)