As of 13:50 CDT

Weather in Summit, IL

78°

Summit, Wednesday, 7 October, 13:50

Overcast. Feels like 78°. High 78°, low 56°.

Pressure29.83 inHg

Wind6.9 mph NW

Humidity57%

Visibility6.2 mi

Dew point61°

Wed, 07October

78°/56°

Thu, 08October

71°/54°

Fri, 09October

71°/50°

Sat, 10October

79°/59°

Sun, 11October

65°/59°

Mon, 12October

75°/54°

Tue, 13October

64°/51°

	00:00	02:00	04:00	06:00	08:00	10:00	12:00	14:00	16:00	18:00	20:00	22:00

Temperature	77°	59°	58°	56°	62°	68°	74°	78°	77°	74°	65°	62°
Feels like	77°	58°	56°	55°	61°	67°	74°	78°	77°	74°	65°	61°
Pressure, inHg	29.83	29.83	29.83	29.83	29.83	29.83	29.83	29.83	29.83	29.85	29.88	29.94
Wind, mph	4.6	4.6	4.6	4.6	4.6	4.6	4.6	2.6	3.6	3.4	3.3	3.2
Humidity, %	58%	58%	58%	58%	58%	58%	58%	57%	54%	57%	63%	68%
Precipitation	0 in	0 in	0 in	0 in	0 in	0 in	0 in	0 in	0 in	0 in	0 in	0 in
Visibility	—	—	—	—	—	—	—	6.2 mi	6.2 mi	6.2 mi	6.2 mi	6.2 mi

	00:00	02:00	04:00	06:00	08:00	10:00	12:00	14:00	16:00	18:00	20:00	22:00

Temperature	59°	60°	57°	54°	56°	66°	70°	70°	70°	66°	61°	57°
Feels like	58°	58°	55°	53°	55°	65°	69°	68°	68°	66°	60°	57°
Pressure, inHg	29.94	29.97	29.97	30.03	30.06	30.09	30.12	30.09	30.06	30.09	30.12	30.12
Wind, mph	3.3	3.8	2.7	2.6	2.6	2.1	2.6	2.9	2.8	1.3	1.4	1.2
Humidity, %	68%	66%	69%	74%	75%	61%	48%	44%	45%	64%	73%	77%
Precipitation	0 in	0 in	0 in	0 in	0 in	0 in	0 in	0 in	0 in	0 in	0 in	0 in
Visibility	6.2 mi	6.2 mi	6.2 mi	6.2 mi	6.2 mi	6.2 mi	6.2 mi	6.2 mi	6.2 mi	6.2 mi	6.2 mi	6.2 mi

	00:00	02:00	04:00	06:00	08:00	10:00	12:00	14:00	16:00	18:00	20:00	22:00

Temperature	55°	51°	50°	50°	53°	62°	68°	70°	71°	68°	66°	66°
Feels like	54°	50°	50°	49°	51°	61°	67°	69°	70°	68°	65°	65°
Pressure, inHg	30.12	30.15	30.15	30.18	30.18	30.21	30.18	30.12	30.09	30.06	30.06	30.09
Wind, mph	0.6	0.5	0.6	1.7	2.3	2.1	3.1	2.6	3	2.5	3.8	4.5
Humidity, %	79%	81%	84%	80%	76%	66%	52%	56%	57%	64%	65%	54%
Precipitation	0 in	0 in	0 in	0 in	0 in	0 in	0 in	0 in	0 in	0 in	0 in	0 in
Visibility	6.2 mi	6.2 mi	6.2 mi	6.2 mi	6.2 mi	6.2 mi	6.2 mi	6.2 mi	6.2 mi	6.2 mi	6.2 mi	6.2 mi

	00:00	02:00	04:00	06:00	08:00	10:00	12:00	14:00	16:00	18:00	20:00	22:00

Temperature	64°	63°	62°	60°	60°	67°	73°	78°	79°	74°	71°	68°
Feels like	63°	62°	61°	59°	59°	66°	73°	78°	79°	74°	71°	68°
Pressure, inHg	30.09	30.09	30.09	30.12	30.12	30.12	30.12	30.06	30.03	30.03	30.03	30.03
Wind, mph	4.6	4.5	4.2	4	3.5	3.5	4.1	3.5	3.3	2.8	2.9	2.9
Humidity, %	58%	61%	64%	67%	68%	63%	55%	54%	54%	66%	69%	69%
Precipitation	0 in	0 in	0 in	0 in	0 in	0 in	0 in	0 in	0 in	0 in	0 in	0 in
Visibility	6.2 mi	6.2 mi	6.2 mi	6.2 mi	6.2 mi	6.2 mi	6.2 mi	6.2 mi	6.2 mi	6.2 mi	6.2 mi	6.2 mi

	00:00	02:00	04:00	06:00	08:00	10:00	12:00	14:00	16:00	18:00	20:00	22:00

Temperature	66°	64°	64°	61°	60°	62°	61°	61°	61°	61°	61°	60°
Feels like	65°	64°	63°	60°	60°	62°	62°	61°	61°	61°	61°	60°
Pressure, inHg	30.00	30.00	30.00	29.97	29.97	29.94	29.91	29.88	29.88	29.88	29.88	29.88
Wind, mph	2.7	2.7	2.8	1.6	2.4	3.4	3.1	3.4	3.4	3.4	3.4	3.4
Humidity, %	68%	67%	67%	83%	92%	92%	92%	92%	92%	92%	92%	92%
Precipitation	0 in	0 in	0 in	0.04 in	0.01 in	0.01 in	0.03 in	0.01 in	0.01 in	0.01 in	0.01 in	0.01 in
Visibility	6.2 mi	6.2 mi	6.2 mi	6.2 mi	6.2 mi	4.0 mi	3.1 mi	—	—	—	—	—

	00:00	02:00	04:00	06:00	08:00	10:00	12:00	14:00	16:00	18:00	20:00	22:00

Temperature	71°	64°	59°	54°	59°	64°	69°	71°	70°	70°	69°	68°
Feels like	71°	64°	59°	53°	59°	64°	69°	71°	71°	71°	70°	69°
Pressure, inHg	29.83	29.83	29.83	29.83	29.83	29.83	29.83	29.83	29.83	29.83	29.83	29.83
Wind, mph	2.7	2.7	2.7	2.7	2.7	2.7	2.7	2.7	2.7	2.7	2.7	2.7
Humidity, %	74%	74%	74%	74%	74%	74%	74%	74%	74%	74%	74%	74%
Precipitation	0 in	0 in	0 in	0 in	0 in	0 in	0 in	0 in	0 in	0 in	0 in	0 in
Visibility	—	—	—	—	—	—	—	—	—	—	—	—

	00:00	02:00	04:00	06:00	08:00	10:00	12:00	14:00	16:00	18:00	20:00	22:00

Temperature	58°	53°	56°	60°	60°	59°	59°	58°	56°	55°	54°	53°
Feels like	58°	51°	55°	60°	59°	58°	57°	56°	54°	53°	51°	50°
Pressure, inHg	29.97	29.97	29.97	29.97	29.97	29.97	29.97	29.97	29.97	29.97	29.97	29.97
Wind, mph	6.1	6.1	6.1	6.1	6.1	6.1	6.1	6.1	6.1	6.1	6.1	6.1
Humidity, %	59%	59%	59%	59%	59%	59%	59%	59%	59%	59%	59%	59%
Precipitation	0 in	0 in	0 in	0 in	0 in	0 in	0 in	0 in	0 in	0 in	0 in	0 in
Visibility	—	—	—	—	—	—	—	—	—	—	—	—

See detailed hourly forecast

Sun and moon today

Day length — 11 h 29 min

Sunrise — 06:54

Sunset — 18:23

Sunrise and sunset in local time

Waning crescent, 14%

Sunrise — —

Sunset — —

Summit, IL climate by month

The annual average temperature in Summit, IL is 50.6°. The warmest month is July (average high 82.3°), and the coldest is January (average low 16.9°). About 39.1 inches of precipitation fall per year, most of it in May (4.1 in). Figures are 60-year climate normals and records from 66 years of observations.

Month	High	Low	Precipitation	Wet days	Record high	Record low
January	30.3°	16.9°	2.2 in	9	63.1° (2008)	-27.4° (1994)
February	34°	19.4°	2.0 in	8	72.1° (2024)	-17.7° (1981)
March	45.2°	29.5°	3.0 in	11	80.8° (2012)	-10.5° (1980)
April	56.8°	40°	3.9 in	12	84.6° (2021)	10.8° (1982)
May	68°	51.4°	4.1 in	12	93.6° (2012)	26.6° (2020)
June	78.3°	62.3°	4.0 in	11	99.3° (1988)	41.5° (1990)
July	82.3°	67.3°	4.0 in	11	99.7° (1995)	51.3° (1972)
August	80.6°	66.2°	3.7 in	11	98.6° (2023)	48.2° (2024)
September	73.9°	59.5°	3.3 in	10	94.3° (2011)	36.9° (1974)
October	61.6°	47.8°	3.3 in	10	89.2° (2025)	25.7° (1962)
November	47.8°	35.6°	2.9 in	9	74.8° (1978)	2.5° (2018)
December	35.8°	24.2°	2.8 in	10	67.8° (2012)	-22.7° (1983)