As of 16:23 PDT

La Mesa, CA weather in September

87°

La Mesa, Saturday, 8 August, 16:23

Clear. Feels like 90°. High 92°, low 69°.

Pressure29.85 inHg

Wind6 mph SW

Humidity52%

Visibility6.2 mi

Dew point67°

See detailed hourly forecast

In September, La Mesa, CA averages a high of 80.7° and a low of 63.5°. About 0.3 inches of precipitation fall over the month (1 wet days). The record high is 106.2° (2020) and the record low 50.7° (1965). Normals are computed over the last 60 years.

Day	High	Low	Chance of precip.	Record high	Record low
1	82.8°	65.1°	3%	96.1° (1987)	57.4° (1964)
2	82.9°	65.8°	3%	94.1° (2007)	56.8° (1964)
3	83.1°	66°	3%	103.5° (1988)	57.4° (1999)
4	83.7°	65.8°	3%	101.8° (1988)	56.8° (1999)
5	84°	66°	2%	102.6° (2020)	57° (1970)
6	83.7°	66°	7%	99.3° (2020)	57.9° (1970)
7	83.5°	65.8°	3%	98.1° (2024)	57.7° (1985)
8	82.9°	65.5°	2%	104.4° (2024)	54° (1965)
9	81.7°	65.1°	3%	95.7° (2024)	54.1° (1961)
10	81°	64.6°	5%	93.7° (2015)	56.7° (1991)
11	80.4°	64°	5%	95° (1963)	53.4° (1975)
12	80.1°	63.5°	2%	97.3° (1971)	52° (1985)
13	79.2°	63°	0%	98.1° (1971)	56.8° (1972)
14	79.7°	62.6°	3%	97.5° (2012)	55.6° (1970)
15	79.7°	62.8°	5%	98.2° (2012)	55° (2016)
16	79.3°	63.1°	3%	98.8° (2020)	55.4° (1970)
17	79.3°	62.6°	7%	98.1° (2020)	55.6° (2006)
18	79°	62.2°	5%	94.8° (2020)	53.1° (1993)
19	78.3°	62.1°	7%	91.9° (1979)	51.8° (1978)
20	78.1°	61.9°	8%	95.4° (2015)	52.2° (1989)
21	79.2°	61.2°	3%	91.2° (2021)	52° (1968)
22	80.2°	61.5°	8%	94.1° (1975)	53.6° (1988)
23	81.1°	62.2°	5%	99.3° (1975)	54.9° (1961)
24	81.1°	62.2°	2%	101.1° (1978)	54.3° (2007)
25	80.2°	62.4°	3%	100° (1978)	56.3° (2000)
26	79.2°	62.6°	8%	104° (1963)	55° (1971)
27	79.5°	62.6°	2%	100.8° (1963)	52.3° (2013)
28	79.5°	61.9°	0%	99.3° (1963)	52.5° (1971)
29	79.3°	62.2°	5%	97.5° (2020)	50.7° (1965)
30	80.2°	61.9°	5%	106.2° (2020)	52° (2019)