As of 02:39 CDT

Joliet, IL weather in December

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 December, Joliet, IL averages a high of 36° and a low of 23.1°. About 2.5 inches of precipitation fall over the month (9 wet days). The record high is 69.6° (2012) and the record low -23.6° (1983). Normals are computed over the last 60 years.

Day	High	Low	Chance of precip.	Record high	Record low
1	39.6°	27.7°	38%	64.9° (1970)	11.8° (1985)
2	40.8°	27.7°	32%	69.3° (1982)	8.4° (1976)
3	39.7°	27.7°	33%	69.6° (2012)	6.1° (2006)
4	39.2°	27°	25%	66.4° (1998)	-2.4° (1991)
5	39.6°	25.9°	28%	66.9° (2001)	-2.9° (1991)
6	37.6°	25.2°	23%	62.6° (1998)	0.7° (1964)
7	36.1°	24.6°	27%	57.7° (1980)	-6.2° (1972)
8	36.9°	25.2°	28%	63.9° (1991)	-0.2° (2006)
9	37.4°	23.7°	37%	53.4° (1990)	-4.7° (1977)
10	36.5°	23.4°	25%	59.4° (1971)	-8.5° (1978)
11	35.4°	23°	30%	59.5° (2021)	-14.6° (1972)
12	37°	23.4°	27%	63.9° (2015)	-6.3° (2000)
13	37°	23.2°	27%	62.4° (2015)	-12.8° (2000)
14	37.2°	24.6°	28%	63.1° (1975)	-10.3° (1985)
15	38.3°	24.8°	35%	66.4° (2021)	-5.4° (2016)
16	36.1°	23.9°	32%	63.7° (2021)	-4.9° (1989)
17	33.3°	21.7°	18%	55.8° (2006)	-12.8° (1972)
18	33.4°	20.5°	18%	54.9° (2002)	-10.5° (2016)
19	34.3°	21.4°	22%	53.6° (2002)	-19.1° (2016)
20	34.3°	21.6°	32%	58.5° (1988)	-13.7° (1963)
21	34.3°	21.4°	35%	59.5° (1967)	-15.9° (1989)
22	34.7°	20.8°	30%	50.5° (2006)	-18.4° (1989)
23	35.2°	21.7°	33%	60.4° (2015)	-21.5° (1989)
24	32.9°	19.6°	30%	58.6° (2023)	-23.6° (1983)
25	31.8°	19.4°	23%	61.2° (1982)	-17.1° (1983)
26	33.6°	19.6°	28%	61.7° (2019)	-11.9° (1983)
27	35.2°	21.9°	27%	62.2° (2008)	-2.4° (2017)
28	36.3°	22.6°	32%	63.9° (1984)	-4.7° (1961)
29	34.9°	22.5°	35%	63° (1984)	-9.8° (1983)
30	34.7°	20.3°	28%	57.9° (2002)	-15.7° (1963)
31	33.6°	20.5°	35%	58.8° (1965)	-18.4° (1963)