As of 18:39 CDT

Summit, IL weather in January

82°

Summit, Saturday, 8 August, 18:39

Clear. Feels like 84°. High 83°, low 69°.

Pressure30.00 inHg

Wind7.2 mph W

Humidity55%

Visibility6.2 mi

Dew point64°

See detailed hourly forecast

In January, Summit, IL averages a high of 30.3° and a low of 16.9°. About 2.2 inches of precipitation fall over the month (9 wet days). The record high is 63.1° (2008) and the record low -27.4° (1994). Normals are computed over the last 60 years.

Day	High	Low	Chance of precip.	Record high	Record low
1	31.8°	19.4°	23%	53.6° (2011)	-13.4° (1969)
2	31.8°	19.2°	33%	59.2° (2000)	-11.4° (1979)
3	31.6°	19.8°	27%	57° (2004)	-13° (1979)
4	30.9°	17.8°	28%	59.9° (1997)	-9.2° (1969)
5	29.8°	16.2°	23%	53.2° (1998)	-18.6° (1999)
6	28.9°	18.1°	30%	57.4° (2008)	-17.1° (2014)
7	28.4°	15.6°	18%	63.1° (2008)	-15.3° (2014)
8	28.9°	13.6°	27%	59.2° (1965)	-14.3° (1968)
9	29.7°	16.2°	28%	50.5° (2002)	-11.4° (1962)
10	30°	16.3°	37%	59° (1975)	-23.1° (1982)
11	31.5°	17.4°	35%	57.6° (2018)	-18.9° (1979)
12	31.6°	18.9°	33%	59° (2005)	-8.1° (1969)
13	31.1°	17.4°	38%	56.7° (2005)	-11° (1977)
14	28.6°	16.9°	27%	43.9° (2020)	-11.9° (2024)
15	27.3°	14.9°	20%	48.6° (1990)	-18.9° (1994)
16	30.2°	16°	23%	54° (1990)	-20.2° (2009)
17	30.2°	16.7°	33%	53.2° (1990)	-25.1° (1982)
18	29.1°	16.3°	25%	56.3° (1996)	-25.2° (1994)
19	29.3°	15.1°	23%	53.2° (2006)	-27.4° (1994)
20	28.6°	15.4°	30%	47.7° (2006)	-26° (1985)
21	29.5°	16.7°	27%	60.8° (2017)	-20.9° (1963)
22	32.7°	18.1°	38%	56.1° (2018)	-14.3° (1970)
23	31.8°	18.7°	40%	55.6° (1967)	-19.3° (1963)
24	31.1°	17.8°	25%	59.5° (1967)	-14.6° (1963)
25	31.1°	17.2°	33%	55.9° (1967)	-12.6° (1963)
26	30.2°	15.4°	32%	53.6° (2018)	-17.3° (2019)
27	30°	16°	25%	54.9° (2002)	-8.3° (2014)
28	30.6°	16.5°	32%	51.1° (1970)	-20.4° (1963)
29	30.6°	16.7°	32%	57.9° (2013)	-19.5° (1966)
30	29.7°	16.9°	27%	56.8° (1988)	-24.9° (2019)
31	31.5°	17.1°	22%	60.6° (1989)	-27.2° (2019)