As of 01:02 PDT

Piedmont, CA weather in September

58°

Piedmont, Sunday, 9 August, 01:02

Clear. Feels like 57°. High 86°, low 58°.

Pressure29.85 inHg

Wind2 mph N

Humidity86%

Visibility6.2 mi

Dew point54°

See detailed hourly forecast

In September, Piedmont, CA averages a high of 77.3° and a low of 55.8°. About 0.2 inches of precipitation fall over the month (1 wet days). The record high is 108.7° (2022) and the record low 47.7° (2008). Normals are computed over the last 60 years.

Day	High	Low	Chance of precip.	Record high	Record low
1	79.3°	56.5°	2%	104.5° (2017)	51.4° (1999)
2	79.2°	56.8°	0%	106.7° (2017)	51.8° (1964)
3	78.6°	56.3°	0%	96.1° (2024)	49.5° (2000)
4	78.6°	56.3°	0%	94.5° (2008)	50.4° (2000)
5	79.5°	56.5°	0%	96.6° (2022)	50.4° (2000)
6	79.5°	56.5°	0%	108.7° (2022)	51.3° (1996)
7	79.9°	56.7°	0%	94.8° (2004)	51.6° (1960)
8	78.8°	56.5°	2%	98.1° (1984)	51.3° (1978)
9	76.6°	56.1°	7%	95.5° (1976)	50.2° (1965)
10	77.2°	55.6°	2%	93.9° (1979)	50.5° (1985)
11	78.3°	56.1°	0%	97.7° (1979)	52° (1985)
12	76.8°	55.8°	2%	100° (1979)	49.8° (1972)
13	76.3°	55.9°	2%	101.7° (1971)	50.4° (1972)
14	74.5°	55.8°	2%	104.9° (1971)	49.3° (1970)
15	74.3°	55°	0%	100° (1971)	48.9° (1970)
16	75°	55.2°	8%	92.8° (1968)	50.2° (2006)
17	75.7°	55.8°	3%	98.4° (1984)	50.4° (1980)
18	75.7°	56.1°	5%	96.6° (2000)	48.6° (1986)
19	76.5°	55.2°	8%	93.4° (2000)	47.7° (2008)
20	77.7°	55.4°	3%	94.3° (1990)	48.4° (2004)
21	77.7°	55°	5%	95.2° (2003)	49.1° (1986)
22	76.6°	55°	2%	94.8° (2003)	50° (1986)
23	77.9°	54.7°	2%	96.6° (2024)	49.6° (1981)
24	77.7°	55.4°	5%	94.8° (1978)	48.6° (2018)
25	77.2°	55.6°	7%	95.9° (2019)	47.8° (1972)
26	77°	55.6°	2%	96.1° (1963)	48.9° (1988)
27	77°	55.8°	7%	94.8° (2010)	48.4° (1986)
28	76.8°	55.6°	5%	98.8° (2020)	49.1° (1965)
29	76.1°	55°	3%	91.6° (1978)	47.8° (2007)
30	76.3°	55°	8%	93.2° (2024)	47.8° (2009)