As of 14:22 CDT

Weather in Summit, IL

84°

Summit, Saturday, 8 August, 14:22

Clear. Feels like 88°. High 85°, low 69°.

Pressure30.00 inHg

Wind2 mph SW

Humidity60%

Visibility6.2 mi

Dew point67°

Sat, 08August

85°/69°

Sun, 09August

84°/66°

Mon, 10August

84°/73°

Tue, 11August

88°/73°

Wed, 12August

86°/70°

Thu, 13August

72°/65°

Fri, 14August

76°/62°

	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	83°	72°	70°	69°	73°	77°	81°	83°	85°	84°	77°	74°
Feels like	83°	72°	71°	70°	74°	79°	84°	86°	87°	85°	77°	74°
Pressure, inHg	30.00	30.00	30.00	30.00	30.00	30.00	30.00	30.00	30.00	29.97	29.97	30.00
Wind, mph	4.3	4.3	4.3	4.3	4.3	4.3	4.3	4.3	4.1	3.9	1.9	1.4
Humidity, %	61%	61%	61%	61%	61%	61%	61%	61%	53%	48%	60%	70%
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

	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	72°	69°	67°	66°	72°	77°	74°	76°	79°	83°	79°	78°
Feels like	72°	69°	67°	66°	72°	78°	75°	78°	80°	93°	79°	80°
Pressure, inHg	30.00	30.00	30.00	29.97	29.97	29.97	29.88	29.88	29.85	29.85	29.88	29.88
Wind, mph	1.3	1.5	1.7	1.9	3.1	3.7	5	5.7	3.3	4.1	4.7	4.4
Humidity, %	72%	74%	78%	81%	71%	74%	93%	95%	91%	91%	96%	96%
Precipitation	0 in	0 in	0 in	0 in	0 in	0 in	0.41 in	0.21 in	0 in	0.03 in	0.05 in	0 in
Visibility	6.2 mi	6.2 mi	6.2 mi	6.2 mi	6.2 mi	6.2 mi	0.5 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	78°	76°	75°	73°	73°	77°	83°	79°	80°	83°	77°	77°
Feels like	79°	77°	76°	74°	74°	78°	86°	79°	80°	91°	79°	79°
Pressure, inHg	29.85	29.85	29.85	29.85	29.91	29.94	29.88	29.91	29.88	29.88	29.85	29.85
Wind, mph	3.8	3.5	3.9	2.2	2.6	1.6	1.9	4.1	2.4	1.9	1.1	1.6
Humidity, %	96%	92%	88%	90%	87%	81%	62%	80%	77%	79%	95%	96%
Precipitation	0 in	0 in	0 in	0 in	0.01 in	0 in	0 in	0 in	0 in	0.03 in	0.01 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	76°	74°	74°	74°	78°	77°	85°	83°	88°	80°	75°	73°
Feels like	77°	76°	75°	75°	79°	78°	90°	87°	93°	84°	76°	75°
Pressure, inHg	29.85	29.88	29.85	29.85	29.85	29.83	29.80	29.80	29.77	29.77	29.77	29.80
Wind, mph	1.6	0.4	0.5	1.7	2.8	4	4.3	2.8	1	1.5	2.7	1.7
Humidity, %	94%	96%	96%	97%	86%	81%	60%	64%	55%	77%	93%	94%
Precipitation	0 in	0 in	0 in	0 in	0 in	0.01 in	0 in	0 in	0 in	0.06 in	0.02 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	72°	71°	70°	69°	72°	78°	78°	82°	80°	81°	80°	78°
Feels like	74°	73°	71°	70°	73°	79°	78°	84°	82°	83°	83°	80°
Pressure, inHg	29.80	29.77	29.80	29.83	29.83	29.85	29.83	29.80	29.88	29.88	29.88	29.88
Wind, mph	1.4	2	2	2.2	3.6	2.9	2.5	1.3	3.2	3.2	3.2	3.2
Humidity, %	95%	98%	96%	96%	88%	63%	65%	55%	63%	63%	63%	63%
Precipitation	0.01 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	—	—	—	—

	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	72°	66°	66°	67°	68°	70°	71°	71°	70°	69°	68°	67°
Feels like	72°	65°	66°	68°	69°	70°	71°	71°	70°	69°	68°	66°
Pressure, inHg	29.94	29.94	29.94	29.94	29.94	29.94	29.94	29.94	29.94	29.94	29.94	29.94
Wind, mph	4.6	4.6	4.6	4.6	4.6	4.6	4.6	4.6	4.6	4.6	4.6	4.6
Humidity, %	64%	64%	64%	64%	64%	64%	64%	64%	64%	64%	64%	64%
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	76°	65°	64°	63°	67°	71°	74°	75°	73°	71°	69°	67°
Feels like	76°	64°	63°	62°	66°	70°	73°	74°	72°	70°	68°	67°
Pressure, inHg	30.18	30.18	30.18	30.18	30.18	30.18	30.18	30.18	30.18	30.18	30.18	30.18
Wind, mph	4.5	4.5	4.5	4.5	4.5	4.5	4.5	4.5	4.5	4.5	4.5	4.5
Humidity, %	39%	39%	39%	39%	39%	39%	39%	39%	39%	39%	39%	39%
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 — 14 h 9 min

Sunrise — 05:52

Sunset — 20:01

Sunrise and sunset in local time

Waning crescent, 21%

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)