As of 01:43 CDT

Naperville, IL weather in August

65°

Naperville, Sunday, 9 August, 01:43

Clear. Feels like 65°. High 85°, low 63°.

Pressure30.00 inHg

Wind3.7 mph SW

Humidity85%

Visibility6.2 mi

Dew point60°

See detailed hourly forecast

In August, Naperville, IL averages a high of 80.6° and a low of 64.4°. About 3.6 inches of precipitation fall over the month (10 wet days). The record high is 98.1° (2023) and the record low 44.2° (1986). Normals are computed over the last 60 years.

Day	High	Low	Chance of precip.	Record high	Record low
1	82°	64.8°	27%	95° (1988)	52.7° (1990)
2	82°	65.5°	43%	94.3° (1991)	54.3° (1968)
3	82.2°	64.9°	32%	93.6° (1988)	49.8° (1976)
4	81.3°	64.8°	37%	95° (1988)	51.8° (1978)
5	80.4°	64.9°	38%	90.3° (2024)	51.3° (2020)
6	80.6°	64.6°	30%	93.2° (1968)	51.1° (1994)
7	81.1°	64.8°	33%	93° (2001)	51.1° (1990)
8	81.9°	65.5°	33%	94.3° (1983)	51.8° (1976)
9	81.3°	65.1°	35%	93.4° (2001)	51.1° (1972)
10	80.4°	65.3°	45%	92.5° (1983)	49.6° (1972)
11	79.3°	64°	37%	91.8° (2016)	50.7° (1965)
12	79.5°	62.8°	28%	92.7° (1995)	49.3° (2004)
13	80.4°	64°	25%	91.8° (1995)	52.2° (1967)
14	79.7°	64°	28%	92.5° (1988)	49.1° (1964)
15	80.6°	64°	35%	92.1° (1988)	48.9° (1964)
16	81.1°	64.4°	33%	97.3° (1988)	50.4° (1979)
17	81°	64.6°	42%	97° (1988)	52.9° (1976)
18	80.2°	64.4°	35%	91.9° (1988)	52.5° (1963)
19	80.1°	64.4°	48%	97° (1983)	53.8° (1992)
20	79.9°	64.6°	33%	91.4° (2023)	51.6° (1992)
21	80.6°	63.5°	30%	95.4° (1983)	52.3° (2024)
22	80.2°	64°	35%	91.8° (1968)	51.6° (2004)
23	79.9°	64°	33%	97.7° (2023)	53.1° (2018)
24	80.6°	63.9°	33%	98.1° (2023)	52.2° (1967)
25	80.8°	63.9°	28%	92.3° (2003)	51.6° (1977)
26	81°	64.9°	35%	94.5° (2024)	49.6° (1964)
27	81°	65.5°	25%	95.7° (2024)	51.6° (2025)
28	80.2°	64.6°	33%	92.7° (1984)	47.3° (1986)
29	80.4°	63.7°	33%	93.9° (1984)	44.2° (1986)
30	79.3°	63.1°	30%	93° (2013)	48.9° (1986)
31	79.2°	62.8°	18%	88.9° (2012)	50.2° (2009)