As of 14:58 PDT

Costa Mesa, CA weather in October

93°

Costa Mesa, Sunday, 9 August, 14:58

Mostly clear. Feels like 96°. High 92°, low 72°.

Pressure29.83 inHg

Wind10.1 mph SW

Humidity41%

Visibility4.9 mi

Dew point70°

See detailed hourly forecast

In October, Costa Mesa, CA averages a high of 74.1° and a low of 59°. About 0.5 inches of precipitation fall over the month (2 wet days). The record high is 99.7° (2017) and the record low 39.9° (1971). Normals are computed over the last 60 years.

Day	High	Low	Chance of precip.	Record high	Record low
1	76.5°	62.1°	5%	91.9° (1965)	53.2° (1971)
2	75.9°	61.3°	7%	90.5° (2014)	52.5° (1971)
3	75.4°	61.5°	7%	92.7° (1987)	53.8° (1971)
4	75.4°	61°	7%	95.5° (1987)	53.6° (1986)
5	75.6°	60.8°	7%	94.5° (1971)	54.5° (1969)
6	75.9°	60.4°	5%	97.5° (1971)	53.4° (1969)
7	76.3°	60.4°	7%	88.5° (1996)	54° (2007)
8	75.9°	60.3°	3%	90.1° (1994)	52.5° (1970)
9	75.4°	60.3°	5%	92.1° (1988)	53.4° (1961)
10	75°	59.9°	7%	96.6° (1991)	50.4° (2013)
11	74.1°	60.3°	10%	90.9° (2015)	53.6° (2024)
12	74.3°	59.4°	3%	88.5° (2011)	50.2° (2008)
13	74.3°	59.2°	8%	92.7° (1961)	51.4° (2021)
14	74.5°	59.5°	5%	99.5° (1961)	48.6° (2021)
15	74.3°	59.2°	5%	96.1° (1961)	50.2° (1966)
16	74.3°	58.6°	7%	92.1° (1967)	51.3° (1981)
17	74.3°	59°	8%	92.3° (1967)	47.5° (1971)
18	73.9°	58.6°	8%	86.5° (1967)	50.7° (1980)
19	74.1°	58.3°	8%	92.8° (1964)	48.2° (1971)
20	73°	58.5°	7%	91.4° (1964)	48.9° (2021)
21	72.7°	58.3°	7%	95° (1965)	50.9° (2021)
22	73.6°	58.5°	8%	95.9° (1965)	50.5° (1996)
23	74.3°	58.3°	12%	92.5° (1965)	50° (1996)
24	74.3°	58.6°	3%	99.7° (2017)	51.3° (1984)
25	73.4°	58.8°	5%	89.4° (2019)	47.7° (1971)
26	73°	57.2°	5%	89.6° (1993)	49.6° (1989)
27	72.3°	57°	8%	88.9° (1973)	50.2° (1996)
28	71.8°	56.5°	7%	85.6° (1965)	47.8° (1970)
29	71.8°	55.9°	7%	83.8° (1965)	44.1° (1971)
30	71.6°	56.1°	15%	89.8° (1962)	39.9° (1971)
31	71.4°	55.2°	7%	85.6° (1967)	44.8° (1971)