As of 23:32 CDT

Stone Park, IL weather in September

70°

Stone Park, Saturday, 8 August, 23:32

Clear. Feels like 70°. High 83°, low 69°.

Pressure30.03 inHg

Wind2.5 mph W

Humidity81%

Visibility6.2 mi

Dew point63°

See detailed hourly forecast

In September, Stone Park, IL averages a high of 73.7° and a low of 59°. About 3.1 inches of precipitation fall over the month (9 wet days). The record high is 94.3° (2013) and the record low 36.1° (1974). Normals are computed over the last 60 years.

Day	High	Low	Chance of precip.	Record high	Record low
1	78.6°	63.9°	32%	93.9° (2011)	51.1° (2009)
2	79°	64°	22%	92.1° (2008)	47.8° (2017)
3	78.8°	64°	28%	93.9° (2023)	50.9° (1974)
4	77.7°	63°	32%	92.3° (2023)	48.7° (2025)
5	77.7°	62.4°	23%	90° (2023)	52.2° (2010)
6	77.4°	62.6°	38%	91.9° (1990)	48.9° (2025)
7	77.7°	62.1°	28%	92.3° (1960)	47.3° (2025)
8	75.9°	61.9°	33%	91.9° (1978)	47.1° (1986)
9	75.6°	61.3°	27%	92.7° (2013)	49.6° (1986)
10	76.5°	60.6°	25%	94.3° (2013)	49.6° (2008)
11	75.9°	60.6°	32%	90.5° (2005)	46.4° (1993)
12	76.1°	60.4°	30%	90° (2005)	45.9° (2014)
13	75.4°	60.4°	33%	92.1° (2005)	43.3° (2014)
14	74.1°	59.5°	30%	86.7° (1991)	43.2° (1975)
15	72.9°	59°	20%	87.6° (2024)	45.3° (2007)
16	72.5°	58.5°	25%	88° (2024)	47.1° (2007)
17	73.8°	59°	37%	88.2° (1988)	45.9° (2014)
18	73.9°	58.6°	27%	86.7° (2025)	47.1° (1973)
19	73.8°	59.5°	38%	88.7° (2024)	43° (2020)
20	73.4°	58.3°	42%	89.8° (2017)	43.5° (1991)
21	72.1°	57.7°	30%	91° (2017)	43.2° (1991)
22	70.3°	56.7°	45%	90.3° (2017)	39.2° (1995)
23	68.7°	54.3°	28%	91.6° (2017)	36.1° (1974)
24	69.3°	55°	25%	89.6° (2007)	43° (1990)
25	70°	55°	35%	89.2° (2017)	43.3° (2001)
26	70°	55°	32%	87.6° (2017)	43.5° (1984)
27	69.3°	54.9°	23%	85.5° (2021)	41.5° (1991)
28	67.5°	54.3°	23%	84° (1971)	42.6° (1975)
29	68°	52.9°	30%	87.1° (2025)	37.9° (1967)
30	69.1°	53.4°	20%	85.3° (1971)	36.3° (1993)