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September weather forecast in Chicago

30 days Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

30 days Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Sun

Sunday

Mon

Monday

Tue

Tuesday

Wed

Wednesday

Thu

Thursday

Fri

Friday

Sat

Saturday

31 August, sun

	746 mmHg		62%
	5.6 m/s		+21

31 August, Sunday. day, 26°; night, 23°; clear

1 September, mon

	746 mmHg		63%
	6 m/s		+22

1 September, Monday. day, 25°; night, 22°; clear

2 September, tue

	746 mmHg		62%
	5.3 m/s		+21

2 September, Tuesday. day, 25°; night, 21°; clear

3 September, wed

	746 mmHg		68%
	5.8 m/s		+21

3 September, Wednesday. day, 23°; night, 21°; partly cloudy

4 September, thu

	746 mmHg		68%
	6.1 m/s		+21

4 September, Thursday. day, 23°; night, 20°; partly cloudy

5 September, fri

	747 mmHg		60%
	6 m/s		+21

5 September, Friday. day, 24°; night, 19°; clear

6 September, sat

	746 mmHg		58%
	6 m/s		+21

6 September, Saturday. day, 24°; night, 21°; clear

7 September, sun

	746 mmHg		67%
	6.1 m/s		+20

7 September, Sunday. day, 23°; night, 20°; clear

8 September, mon

	746 mmHg		70%
	5.3 m/s		+20

8 September, Monday. day, 22°; night, 19°; partly cloudy

9 September, tue

	746 mmHg		66%
	5.9 m/s		+20

9 September, Tuesday. day, 22°; night, 19°; clear

10 September, wed

	747 mmHg		64%
	5.3 m/s		+20

10 September, Wednesday. day, 22°; night, 19°; partly cloudy

11 September, thu

	747 mmHg		61%
	5.9 m/s		+20

11 September, Thursday. day, 23°; night, 18°; clear

12 September, fri

	747 mmHg		64%
	5.9 m/s		+20

12 September, Friday. day, 21°; night, 18°; clear

13 September, sat

	747 mmHg		62%
	5.4 m/s		+20

13 September, Saturday. day, 22°; night, 18°; clear

14 September, sun

	748 mmHg		62%
	5.9 m/s		+20

14 September, Sunday. day, 21°; night, 18°; partly cloudy

15 September, mon

	750 mmHg		62%
	5.9 m/s		+19

15 September, Monday. day, 20°; night, 18°; partly cloudy

16 September, tue

	748 mmHg		62%
	5.6 m/s		+19

16 September, Tuesday. day, 22°; night, 17°; clear

17 September, wed

	747 mmHg		74%
	5.5 m/s		+19

17 September, Wednesday. day, 22°; night, 18°; rain

18 September, thu

	747 mmHg		70%
	5.6 m/s		+19

18 September, Thursday. day, 21°; night, 18°; clear

19 September, fri

	746 mmHg		62%
	6.1 m/s		+19

19 September, Friday. day, 24°; night, 18°; clear

20 September, sat

	745 mmHg		57%
	6.3 m/s		+19

20 September, Saturday. day, 23°; night, 20°; clear

21 September, sun

	748 mmHg		64%
	4.8 m/s		+19

21 September, Sunday. day, 22°; night, 18°; clear

22 September, mon

	749 mmHg		63%
	5.1 m/s		+19

22 September, Monday. day, 23°; night, 18°; rain

23 September, tue

	749 mmHg		67%
	5.5 m/s		+19

23 September, Tuesday. day, 21°; night, 19°; rain

24 September, wed

	748 mmHg		63%
	5.3 m/s		+18

24 September, Wednesday. day, 21°; night, 18°; partly cloudy

25 September, thu

	746 mmHg		66%
	5.9 m/s		+18

25 September, Thursday. day, 21°; night, 18°; partly cloudy

26 September, fri

	746 mmHg		64%
	6.1 m/s		+18

26 September, Friday. day, 20°; night, 17°; clear

27 September, sat

	744 mmHg		62%
	5.6 m/s		+18

27 September, Saturday. day, 20°; night, 16°; rain

28 September, sun

	745 mmHg		69%
	6.1 m/s		+18

28 September, Sunday. day, 18°; night, 17°; clear

29 September, mon

	748 mmHg		68%
	6.6 m/s		+18

29 September, Monday. day, 17°; night, 15°; clear

30 September, tue

	747 mmHg		66%
	6.5 m/s		+17

30 September, Tuesday. day, 17°; night, 14°; clear

1 October, wed

	746 mmHg		67%
	7 m/s		+17

1 October, Wednesday. day, 17°; night, 14°; rain

2 October, thu

	746 mmHg		72%
	6.1 m/s		+16

2 October, Thursday. day, 17°; night, 14°; partly cloudy

3 October, fri

	748 mmHg		75%
	5.8 m/s		+16

3 October, Friday. day, 16°; night, 14°; rain

4 October, sat

	748 mmHg		63%
	5.5 m/s		+16

4 October, Saturday. day, 19°; night, 14°; partly cloudy

Average data for 10 years

Chicago September

18

sunny days

4

days with precipitation

8

cloudy days

18 sunny days; 4 days with precipitation; 8 cloudy days;

64

%

air humidity

4.1

m/s

WindSE

61

mm of precipitation

(8% of annual average)

+19

°C

Water temperature

air humidity 64%; 61 millimeters of precipitation (8% of annual average); Wind south-easterly 4.1 Meters per second; Water temperature +19°

Weather graphs for September

TemperatureWater temperaturePrecipitation chance, %Humidity, %Wind, m/sPressure, mmHg

E

E

NW

NE

SE

SW

NE

E

SE

E

NW

SW

S

E

E

SE

S

E

S

SW

SE

SE

SE

SE

SE

SE

W

N

N

E

1

Average data for 10 years

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

Daytime temperature

Night-time temperature

Cities near you

Indianapolis
Iowa City
Milwaukee
Wisconsin Rapids
Michigan City
Madison
Wisconsin Dells
Ottawa
Dixon

Cities with similar weather in September

Suhum
Burgas
Varna
Tivat
The Sunny Beach
Podgorica
The Golden Sands
Pomorie
Genoa

The weather forecast for September 2024 is based on historical data from the past 10 years.

In September, the weather in Chicago is typically warm. Average daily high temperature in September is about 22 degrees above zero. On average, Chicago has 18 sunny, 8 partly cloudy, and 4 rainy days in September. The rains are usually light. September as well as July and August is considered the most comfortable time to visit Chicago.

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