As of 18:30 CDT

Berwyn, IL weather in September

82°

Berwyn, Saturday, 8 August, 18:30

Clear. Feels like 85°. High 83°, low 69°.

Pressure30.00 inHg

Wind2 mph S

Humidity60%

Visibility6.2 mi

Dew point67°

See detailed hourly forecast

In September, Berwyn, IL averages a high of 73.7° and a low of 59.4°. About 3.2 inches of precipitation fall over the month (10 wet days). The record high is 94.1° (2011) and the record low 36.7° (1995). Normals are computed over the last 60 years.

Day	High	Low	Chance of precip.	Record high	Record low
1	78.6°	64.4°	30%	94.1° (2011)	53.4° (1967)
2	79°	64.6°	25%	91.8° (2011)	50.7° (1965)
3	78.8°	64.4°	27%	93.9° (2023)	51.6° (1974)
4	77.7°	63.5°	33%	91.9° (2023)	49.8° (2025)
5	77.7°	62.8°	27%	90.7° (2023)	52.3° (1974)
6	77.4°	63°	38%	91.8° (1990)	49.3° (2025)
7	77.5°	62.4°	32%	92.3° (1960)	47.7° (2025)
8	75.9°	62.2°	35%	91.2° (1978)	47.5° (2024)
9	75.6°	61.7°	32%	92.7° (2013)	50.5° (2025)
10	76.5°	61.2°	30%	94.1° (2013)	50.5° (2017)
11	76.1°	61°	32%	90.5° (2005)	46.6° (1993)
12	76.1°	60.8°	30%	90° (2005)	46.8° (2014)
13	75.6°	61°	38%	91.9° (2005)	43.7° (2014)
14	74.1°	59.9°	32%	87.1° (1991)	44.2° (1975)
15	73°	59.4°	23%	87.8° (1991)	46.2° (2007)
16	72.5°	59°	25%	87.3° (2017)	47.3° (1966)
17	73.8°	59.4°	38%	88.3° (2018)	47.3° (2014)
18	73.8°	59.2°	35%	86.9° (2025)	47.8° (1973)
19	73.9°	59.7°	33%	90.5° (2024)	44.2° (2012)
20	73.6°	58.8°	48%	90.1° (2017)	44.4° (1991)
21	72.3°	58.1°	32%	91.6° (2017)	44.4° (1991)
22	70.3°	57.2°	47%	91° (2017)	39.7° (1995)
23	68.9°	54.7°	32%	91.2° (2017)	36.7° (1995)
24	69.4°	55.2°	25%	89.8° (2007)	42.1° (1976)
25	70°	55.4°	42%	89.6° (2017)	44.1° (2001)
26	70°	55.4°	28%	88.3° (2017)	44.2° (1984)
27	69.3°	55.4°	28%	86° (2025)	42.1° (1991)
28	67.5°	54.9°	27%	83.7° (1971)	43.5° (1961)
29	68°	53.2°	30%	86.5° (2025)	37.9° (1967)
30	69.1°	53.8°	17%	85.3° (2019)	36.9° (1993)