As of 13:34 CDT

Rockford, IL weather in December

79°

Rockford, Sunday, 9 August, 13:34

Overcast. Feels like 79°. High 83°, low 63°.

Pressure29.91 inHg

Wind2.9 mph S

Humidity66%

Visibility6.2 mi

Dew point67°

See detailed hourly forecast

In December, Rockford, IL averages a high of 33.4° and a low of 20.6°. About 2.2 inches of precipitation fall over the month (9 wet days). The record high is 66.7° (2012) and the record low -24.3° (1983). Normals are computed over the last 60 years.

Day	High	Low	Chance of precip.	Record high	Record low
1	37°	25.5°	42%	60.3° (1970)	4.1° (1971)
2	38.1°	25.2°	28%	66.6° (1982)	0.1° (1971)
3	37.2°	25°	30%	66.7° (2012)	-8.1° (1985)
4	36.7°	24.8°	20%	63.7° (1998)	-2.2° (1991)
5	37.2°	23.9°	35%	65.3° (2001)	-2.7° (1991)
6	34.9°	21.9°	30%	59.9° (1998)	-9° (2007)
7	32.7°	21.6°	27%	53.8° (1980)	-4.9° (2008)
8	33.8°	22.3°	32%	57.4° (1991)	0.5° (2005)
9	34.5°	21°	35%	51.4° (1987)	-6.7° (1978)
10	33.4°	21°	23%	56.3° (2015)	-11.7° (1978)
11	32.7°	19.8°	32%	54.7° (1965)	-16.1° (1972)
12	34°	19.8°	22%	58.3° (1991)	-7.2° (2013)
13	34.3°	20.5°	23%	60.3° (2015)	-14.4° (2000)
14	34.9°	22.3°	30%	60.8° (2015)	-13.7° (1985)
15	35.4°	21.7°	32%	66.6° (2021)	-16.1° (2010)
16	34°	21.6°	30%	64.4° (2021)	-6.9° (2009)
17	31.1°	19.6°	20%	52.5° (2006)	-13.2° (1972)
18	31.6°	18.9°	17%	54.3° (2002)	-12.5° (1983)
19	32°	19.6°	17%	51.3° (2002)	-22.5° (1983)
20	31.8°	19.8°	27%	53.2° (1988)	-15.3° (1963)
21	32.2°	19.2°	27%	57° (1967)	-16.1° (1989)
22	32.5°	19.2°	28%	49.1° (2006)	-14.4° (1983)
23	32.7°	19.4°	25%	57.4° (2015)	-18.4° (1983)
24	30.6°	17.4°	27%	55.8° (2023)	-24.3° (1983)
25	29.7°	16.5°	27%	57.2° (1982)	-17.7° (1983)
26	31.1°	17.2°	27%	53.8° (2016)	-11.7° (1983)
27	32.5°	18.7°	25%	52.9° (2008)	-8.9° (1977)
28	33.6°	20.7°	33%	61.7° (1984)	-8° (1961)
29	32.2°	19.8°	25%	61.5° (1984)	-10.3° (1983)
30	31.6°	17.4°	25%	54.1° (2002)	-15.9° (2013)
31	30.6°	17.4°	30%	58.8° (1965)	-15.5° (1963)