As of 20:29 CDT

Highwood, IL weather in September

72°

Highwood, Saturday, 8 August, 20:29

Clear. Feels like 73°. High 83°, low 68°.

Pressure30.00 inHg

Wind2.8 mph NW

Humidity74%

Visibility6.2 mi

Dew point64°

See detailed hourly forecast

In September, Highwood, IL averages a high of 71.3° and a low of 61.5°. About 3.1 inches of precipitation fall over the month (9 wet days). The record high is 92.5° (2023) and the record low 41.4° (1967). Normals are computed over the last 60 years.

Day	High	Low	Chance of precip.	Record high	Record low
1	76.1°	66.6°	28%	88.5° (1960)	56.7° (2017)
2	76.8°	66.6°	25%	87.3° (2023)	50° (2017)
3	76.5°	66.4°	27%	92.5° (2023)	54.1° (1974)
4	75.4°	65.8°	30%	90.9° (2023)	49.1° (2025)
5	75.4°	65.3°	25%	89.2° (2023)	54.5° (2017)
6	75°	65.1°	33%	90° (1990)	49.1° (2025)
7	75.4°	64.8°	28%	88.5° (1960)	47.7° (2025)
8	73.6°	64.4°	32%	88° (1960)	49.5° (2024)
9	73.2°	63.9°	27%	87.4° (1983)	53.2° (2025)
10	73.9°	63.3°	27%	89.2° (2013)	52° (2017)
11	73.6°	63.3°	30%	86.9° (2021)	50.4° (2017)
12	73.6°	62.8°	35%	86.7° (2021)	48.6° (2014)
13	73°	63°	37%	86.4° (2005)	45.7° (2014)
14	72.3°	61.9°	32%	85.6° (2021)	51.1° (1963)
15	70.7°	61.3°	22%	83.3° (1991)	48.4° (2007)
16	70.3°	61°	27%	84.9° (2017)	52.5° (1984)
17	71.2°	61.3°	38%	87.1° (2021)	52.5° (1981)
18	71.1°	61.5°	28%	83.7° (2022)	50.5° (2020)
19	71.2°	61.9°	40%	85.6° (2024)	47.3° (1991)
20	71.2°	60.4°	45%	88.2° (2017)	46.8° (2020)
21	69.6°	60.1°	32%	89.1° (2017)	46.6° (1983)
22	68.2°	58.8°	50%	90° (2017)	41.5° (1995)
23	66.9°	57.2°	30%	87.6° (2017)	43.3° (1995)
24	67.1°	57.6°	27%	85.6° (2017)	46.4° (1990)
25	67.8°	57.9°	33%	85.3° (2017)	46.8° (2001)
26	67.6°	57.9°	32%	85.5° (2017)	45.1° (1984)
27	66.7°	57.4°	28%	84° (2021)	46.2° (1991)
28	65.1°	56.7°	27%	80.1° (1986)	44.8° (1961)
29	65.5°	55.6°	32%	80.4° (2025)	41.4° (1967)
30	66.2°	55.9°	18%	84.6° (2019)	43° (1993)