As of 21:58 PDT

Norwalk, CA weather in September

73°

Norwalk, Saturday, 8 August, 21:58

Clear. Feels like 74°. High 98°, low 71°.

Pressure29.88 inHg

Wind2 mph W

Humidity80%

Visibility6.2 mi

Dew point67°

See detailed hourly forecast

In September, Norwalk, CA averages a high of 84.8° and a low of 63.2°. About 0.4 inches of precipitation fall over the month (1 wet days). The record high is 113.5° (2024) and the record low 49.6° (1978). Normals are computed over the last 60 years.

Day	High	Low	Chance of precip.	Record high	Record low
1	87.3°	65.1°	3%	104° (2002)	57.6° (1973)
2	87.8°	65.5°	5%	103.6° (1982)	58.3° (1964)
3	88°	65.5°	5%	107.1° (1988)	57.6° (1961)
4	88.7°	65.5°	3%	109.9° (1988)	58.1° (1999)
5	88.5°	65.5°	3%	108.1° (2024)	57.6° (1973)
6	88.3°	65.5°	3%	113.5° (2024)	56.1° (1970)
7	87.6°	64.9°	2%	103.5° (2024)	57.4° (1964)
8	87.1°	64.9°	0%	109.4° (2024)	57.4° (1965)
9	86°	64.6°	3%	105.6° (2024)	57.9° (1962)
10	84.6°	64.2°	7%	101.7° (1983)	57.2° (1985)
11	84°	63.3°	5%	103.6° (1983)	56.7° (1985)
12	83.8°	63.1°	2%	107.2° (1971)	55.6° (1972)
13	82.9°	63°	2%	108.9° (1971)	56.8° (1962)
14	83.7°	62.6°	3%	100.6° (2014)	55.9° (1973)
15	83.5°	62.6°	3%	103.6° (1979)	56.1° (1986)
16	83.3°	63°	3%	102.4° (2014)	56.1° (1986)
17	82.9°	62.4°	2%	98.2° (1984)	55.2° (2006)
18	82.6°	62.2°	3%	101.3° (1984)	55.4° (1993)
19	82°	62.1°	3%	102.4° (1984)	49.6° (1978)
20	81.5°	61.7°	7%	99.3° (2015)	51.3° (1978)
21	82.9°	61.5°	0%	99.3° (2021)	51.8° (1965)
22	84.4°	61.7°	3%	97° (1992)	52.9° (1968)
23	84.9°	61.7°	3%	101.8° (1975)	54.3° (1986)
24	85.1°	62.1°	3%	104.2° (1978)	55.2° (1998)
25	84.4°	62.2°	5%	103.5° (1963)	55.4° (2005)
26	83.3°	62.6°	5%	105.6° (1963)	53.4° (1970)
27	83.5°	61.9°	0%	106.3° (2010)	51.1° (2013)
28	83.3°	61.9°	3%	106° (1963)	52.3° (2013)
29	83.3°	61.9°	5%	101.8° (1963)	51.6° (1965)
30	83.8°	61.7°	3%	108.5° (2020)	53.1° (1965)