As of 09:23 CDT

Sycamore, IL weather in December

64°

Sycamore, Wednesday, 7 October, 09:23

Clear. Feels like 63°. High 76°, low 56°.

Pressure29.83 inHg

Wind10.4 mph W

Humidity77%

Visibility6.2 mi

Dew point56°

See detailed hourly forecast

In December, Sycamore, IL averages a high of 33.9° and a low of 20.9°. About 2.3 inches of precipitation fall over the month (9 wet days). The record high is 68.2° (2012) and the record low -26.5° (1983). Normals are computed over the last 60 years.

Day	High	Low	Chance of precip.	Record high	Record low
1	37.4°	25.7°	38%	62.2° (1970)	4.6° (1971)
2	38.5°	25.3°	30%	67.5° (1982)	0.7° (1971)
3	37.6°	25.5°	33%	68.2° (2012)	1.9° (1985)
4	37.2°	24.8°	20%	64.2° (1998)	-4.5° (1991)
5	37.8°	23.9°	33%	66.2° (2001)	-4.7° (1991)
6	35.6°	22.5°	22%	61° (1998)	-4.2° (1964)
7	33.6°	22.1°	27%	55.6° (1980)	-6.2° (2005)
8	34.5°	23°	28%	60.3° (1991)	-0.8° (2006)
9	35.1°	21.2°	42%	51.6° (1987)	-7.6° (1978)
10	34°	21.2°	25%	57.4° (2015)	-12.1° (1978)
11	33.3°	20.1°	33%	55° (1965)	-17.9° (1972)
12	34.5°	20.1°	23%	59.2° (2015)	-8.5° (2000)
13	35.1°	20.8°	27%	61° (2015)	-15.9° (2000)
14	35.2°	22.6°	30%	60.6° (2015)	-14.1° (1985)
15	36.1°	22.5°	33%	66.2° (2021)	-14.1° (1989)
16	34.3°	21.7°	30%	64° (2021)	-6.9° (1989)
17	31.3°	19.4°	18%	54.1° (2006)	-14.6° (1972)
18	31.6°	18.7°	17%	54.3° (2002)	-14.3° (1983)
19	32.4°	19.8°	18%	51.6° (2002)	-26.5° (1983)
20	32.4°	19.8°	28%	55.8° (1988)	-15.3° (1963)
21	32.4°	19.4°	30%	57.4° (1967)	-16.8° (1989)
22	32.5°	19.2°	28%	49.5° (2006)	-16.1° (1983)
23	33.4°	19.4°	28%	57.6° (2015)	-19.5° (1983)
24	31.1°	17.8°	30%	56.8° (2021)	-25.1° (1983)
25	30°	16.9°	30%	57.9° (1982)	-18.8° (1983)
26	31.6°	17.4°	30%	57.9° (2019)	-13.4° (1983)
27	32.9°	19.4°	23%	58.5° (2008)	-9.4° (1977)
28	34.2°	20.7°	35%	61.9° (1984)	-7.6° (2000)
29	32.9°	20.3°	30%	62.1° (1984)	-13.2° (1983)
30	32.4°	17.6°	28%	55.8° (2002)	-16.2° (1983)
31	31.3°	17.8°	30%	58.3° (1965)	-15.3° (1963)