As of 04:30 PDT

Rohnert Park, CA weather in September

55°

Rohnert Park, Sunday, 9 August, 04:30

Clear. Feels like 54°. High 91°, low 55°.

Pressure29.83 inHg

Wind1 mph SE

Humidity78%

Visibility6.2 mi

Dew point49°

See detailed hourly forecast

In September, Rohnert Park, CA averages a high of 79.5° and a low of 55.4°. About 0.2 inches of precipitation fall over the month (1 wet days). The record high is 116.6° (2022) and the record low 43.9° (1986). Normals are computed over the last 60 years.

Day	High	Low	Chance of precip.	Record high	Record low
1	81.9°	56.1°	2%	104° (2017)	50.4° (1964)
2	82.2°	56.5°	2%	105.3° (2017)	49.8° (1964)
3	81.3°	55.9°	0%	94.8° (2017)	49.3° (2000)
4	81.5°	55.8°	0%	94.8° (2022)	48.4° (2000)
5	82°	56.1°	2%	98.8° (2022)	50° (1996)
6	81.9°	56.1°	0%	116.6° (2022)	50.7° (1980)
7	81.9°	56.1°	3%	101.1° (2020)	48.9° (2012)
8	81.1°	55.9°	2%	101.3° (2020)	50.7° (1989)
9	79.2°	55.8°	7%	96.1° (2015)	49.8° (1964)
10	79.3°	55.2°	2%	94.3° (1979)	49.3° (1985)
11	80.6°	55.4°	0%	99° (1979)	48.2° (1985)
12	79.9°	55.9°	0%	99.3° (1979)	50.2° (1985)
13	78.6°	55.8°	2%	100.6° (1971)	49.3° (2005)
14	77.2°	54.9°	3%	103.6° (1971)	49.1° (1966)
15	76.8°	54.5°	2%	100.4° (1971)	49.3° (2008)
16	77.7°	54.3°	8%	94.5° (1968)	48° (2006)
17	77.9°	55.2°	7%	99° (1984)	49.1° (2012)
18	77.7°	55.8°	10%	99.3° (2000)	46.9° (2008)
19	78.6°	55°	8%	94.5° (1964)	47.3° (2008)
20	79.9°	54.9°	2%	94.3° (2015)	47.3° (2004)
21	80.2°	54.7°	3%	95.7° (2003)	47.1° (1968)
22	78.6°	54.5°	3%	95.2° (2003)	48° (1968)
23	79.5°	54.5°	0%	95.7° (1964)	48.6° (1988)
24	79.3°	55.4°	5%	96.6° (1964)	49.3° (2023)
25	78.8°	55.2°	8%	99.7° (2019)	48.6° (1986)
26	78.6°	55.4°	7%	95.9° (1963)	47.1° (2013)
27	78.6°	55.2°	5%	97.5° (2020)	43.9° (1986)
28	78.6°	55°	3%	101.3° (2020)	45.9° (1986)
29	77.7°	54.7°	7%	95° (1966)	45.3° (2007)
30	77.9°	54.7°	7%	95.2° (1970)	46.2° (1971)