As of 02:39 CDT

Joliet, IL weather in May

63°

Joliet, Sunday, 9 August, 02:39

Clear. Feels like 64°. High 86°, low 63°.

Pressure30.00 inHg

Wind3.8 mph S

Humidity95%

Visibility6.2 mi

Dew point62°

See detailed hourly forecast

In May, Joliet, IL averages a high of 69.9° and a low of 51.4°. About 4.3 inches of precipitation fall over the month (12 wet days). The record high is 94.1° (2012) and the record low 25.5° (1966). Normals are computed over the last 60 years.

Day	High	Low	Chance of precip.	Record high	Record low
1	64.6°	46.8°	42%	80.8° (1992)	30.2° (1979)
2	63.9°	46°	33%	81.5° (2021)	30.7° (1966)
3	63.7°	45.3°	37%	83.3° (2012)	31.8° (1967)
4	64.6°	45.3°	37%	79.7° (1980)	31.6° (1966)
5	67.1°	47.1°	38%	81.9° (1982)	33.6° (1967)
6	67.3°	48°	35%	82.8° (2004)	34° (1978)
7	66.9°	48.6°	43%	83.3° (2023)	30.9° (1989)
8	68°	48.9°	35%	83.8° (1979)	30.2° (1976)
9	67.5°	50°	45%	83.7° (1963)	29.3° (2020)
10	69.4°	48.6°	30%	86.4° (2011)	25.5° (1966)
11	68.5°	50.4°	50%	86.9° (2022)	35.2° (2020)
12	67.1°	49.8°	42%	86.5° (2022)	34° (1981)
13	68.2°	48.7°	45%	84.7° (2022)	34.3° (2013)
14	68.7°	50°	48%	84.9° (1982)	38.3° (1996)
15	68.9°	51.3°	38%	93.6° (2025)	37.8° (1973)
16	70.5°	51.1°	35%	86.9° (2001)	37.2° (1997)
17	70°	51.6°	33%	86.5° (1962)	36.9° (2014)
18	70.9°	52.3°	33%	88.9° (1962)	35.6° (2002)
19	71.4°	53.2°	37%	88.2° (1977)	37.2° (2002)
20	72°	53.1°	32%	88.9° (2012)	37.2° (2002)
21	71.6°	52.7°	30%	87.1° (1977)	31.1° (2002)
22	72.3°	53.6°	32%	85.8° (1977)	39.4° (1997)
23	72.5°	54.3°	37%	86.7° (1977)	34.3° (1963)
24	72.5°	54°	28%	88.3° (2010)	41° (2013)
25	71.8°	55°	48%	85.6° (1977)	40.1° (1992)
26	72.7°	54.7°	40%	91.6° (2012)	39.2° (1983)
27	73.4°	55°	35%	94.1° (2012)	36.1° (1961)
28	73.6°	55.9°	38%	92.5° (2012)	39.9° (1971)
29	75.2°	56.7°	45%	88° (2018)	39.9° (1965)
30	75.9°	57°	38%	88.9° (2023)	37.8° (1984)
31	75.2°	57.9°	42%	88.9° (2023)	43° (1972)