As of 01:43 CDT

Naperville, IL weather in May

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 May, Naperville, IL averages a high of 69.2° and a low of 50.6°. About 4.2 inches of precipitation fall over the month (12 wet days). The record high is 93.9° (2025) and the record low 25.3° (1966). Normals are computed over the last 60 years.

Day	High	Low	Chance of precip.	Record high	Record low
1	63.7°	45.9°	43%	80.1° (1992)	30° (1978)
2	63.1°	45.3°	33%	81° (2021)	29.7° (1966)
3	63°	44.4°	33%	82° (2012)	30.4° (1967)
4	64°	44.2°	35%	79.5° (1980)	30.6° (1966)
5	66.4°	46.4°	37%	81.1° (1982)	32.2° (1967)
6	66.6°	47.1°	35%	81.9° (2004)	32.4° (1978)
7	66°	47.7°	42%	83.1° (2023)	29.8° (1989)
8	67.1°	48.2°	32%	83.7° (2014)	29.7° (1976)
9	66.7°	49.3°	40%	82.9° (1963)	27.3° (2020)
10	68.7°	47.8°	32%	86.2° (2011)	25.3° (1966)
11	67.6°	49.5°	43%	86.2° (2022)	34.3° (2021)
12	66.6°	48.9°	40%	86.2° (2022)	33.1° (1981)
13	67.5°	48°	45%	84.4° (2022)	32.9° (2013)
14	68°	49.3°	45%	84.6° (1991)	37.6° (1996)
15	68.2°	50.5°	42%	93.9° (2025)	36.7° (1973)
16	70°	50°	40%	86.2° (2001)	36° (1967)
17	69.4°	50.7°	33%	85.6° (1962)	35.4° (2014)
18	70.2°	51.4°	30%	88.2° (1962)	34.5° (2002)
19	70.7°	52.5°	37%	87.6° (1977)	36.3° (2002)
20	71.2°	52.2°	38%	87.6° (2012)	37° (2002)
21	71.1°	51.8°	32%	86.4° (1977)	30° (2002)
22	71.6°	52.9°	33%	84.7° (1962)	38.3° (1997)
23	71.8°	53.2°	37%	86.2° (1977)	33.6° (1963)
24	71.8°	53.1°	30%	88.2° (2010)	40.1° (2013)
25	71.1°	54.1°	52%	84.9° (1977)	39° (1992)
26	72°	54°	40%	89.1° (2012)	39.2° (1983)
27	72.7°	54.1°	33%	93° (2012)	35.8° (1961)
28	72.9°	55.2°	35%	91.2° (2012)	39.4° (1971)
29	74.3°	55.9°	48%	87.1° (2018)	38.8° (1965)
30	75.4°	56.1°	35%	88.3° (2023)	36.9° (1984)
31	74.7°	57.2°	38%	88.9° (2023)	42.3° (1972)