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Monthly 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
1 September
+25
+22
1 September, sun
+25
+22
Feels like
+25
746 mmHg
63%
6
m/s
E
+22
1 September, Sunday. day, 25°; night, 22°; clear
2
+25
+21
2 September, mon
+25
+21
Feels like
+25
746 mmHg
62%
5.3
m/s
E
+21
2 September, Monday. day, 25°; night, 21°; clear
3
+23
+21
3 September, tue
+23
+21
Feels like
+23
746 mmHg
68%
5.8
m/s
NW
+21
3 September, Tuesday. day, 23°; night, 21°; partly cloudy
4
+23
+20
4 September, wed
+23
+20
Feels like
+22
746 mmHg
68%
6.1
m/s
NE
+21
4 September, Wednesday. day, 23°; night, 20°; partly cloudy
5
+24
+19
5 September, thu
+24
+19
Feels like
+23
747 mmHg
60%
6
m/s
SE
+21
5 September, Thursday. day, 24°; night, 19°; clear
6
September
+20
+12
6 September, fri
+20
+12
Feels like
+12
749 mmHg
65%
9.2
m/s
N
+22
Climate normal
+24
+21
6 September, Friday. day, 20°; night, 12°; light rain
7
+16
+9
7 September, sat
+16
+9
Feels like
+7
751 mmHg
50%
8.2
m/s
N
+17
Climate normal
+23
+20
7 September, Saturday. day, 16°; night, 9°; light rain
8
+22
+13
8 September, sun
+22
+13
Feels like
+15
750 mmHg
44%
4.3
m/s
W
+21
Climate normal
+22
+19
8 September, Sunday. day, 22°; night, 13°; mostly clear
9
+27
+16
9 September, mon
+27
+16
Feels like
+20
749 mmHg
45%
5.1
m/s
SW
+22
Climate normal
+22
+19
9 September, Monday. day, 27°; night, 16°; clear
10
+28
+17
10 September, tue
+28
+17
Feels like
+22
749 mmHg
43%
3.8
m/s
SW
+23
Climate normal
+22
+19
10 September, Tuesday. day, 28°; night, 17°; partly cloudy
11
+29
+18
11 September, wed
+29
+18
Feels like
+23
749 mmHg
48%
4.3
m/s
S
+24
Climate normal
+23
+18
11 September, Wednesday. day, 29°; night, 18°; clear
12
+28
+20
12 September, thu
+28
+20
Feels like
+23
750 mmHg
51%
4.4
m/s
E
+24
Climate normal
+21
+18
12 September, Thursday. day, 28°; night, 20°; overcast
13
+27
+19
13 September, fri
+27
+19
Feels like
+23
750 mmHg
58%
4.3
m/s
E
+23
Climate normal
+22
+18
13 September, Friday. day, 27°; night, 19°; overcast
14
+26
+19
14 September, sat
+26
+19
Feels like
+22
748 mmHg
60%
5.4
m/s
S
+23
Climate normal
+21
+18
14 September, Saturday. day, 26°; night, 19°; rain
15
+26
+19
15 September, sun
+26
+19
Feels like
+21
746 mmHg
62%
5.6
m/s
S
+22
Climate normal
+20
+18
15 September, Sunday. day, 26°; night, 19°; light rain
16
+25
+20
16 September, mon
+25
+20
Feels like
+21
746 mmHg
62%
4.7
m/s
NE
Climate normal
+22
+17
16 September, Monday. day, 25°; night, 20°; partly cloudy
17
+27
+19
17 September, tue
+27
+19
Feels like
+22
745 mmHg
57%
4.9
m/s
NW
Climate normal
+22
+18
17 September, Tuesday. day, 27°; night, 19°; partly cloudy
18
+26
+23
18 September, wed
+26
+23
Feels like
+23
740 mmHg
82%
7.4
m/s
S
Climate normal
+21
+18
18 September, Wednesday. day, 26°; night, 23°; clear
19
+27
+22
19 September, thu
+27
+22
Feels like
+22
742 mmHg
74%
7.5
m/s
S
Climate normal
+24
+18
19 September, Thursday. day, 27°; night, 22°; clear
20
+26
+20
20 September, fri
+26
+20
Feels like
+23
745 mmHg
85%
5.2
m/s
S
Climate normal
+23
+20
20 September, Friday. day, 26°; night, 20°; light rain
21
+20
+19
21 September, sat
+20
+19
Feels like
+18
744 mmHg
76%
5
m/s
S
Climate normal
+22
+18
21 September, Saturday. day, 20°; night, 19°; rain
22
+21
+19
22 September, sun
+21
+19
Feels like
+17
744 mmHg
61%
2.9
m/s
SE
Climate normal
+23
+18
22 September, Sunday. day, 21°; night, 19°; light rain
23
+23
+20
23 September, mon
+23
+20
Feels like
+21
743 mmHg
60%
1.8
m/s
SE
Climate normal
+21
+19
23 September, Monday. day, 23°; night, 20°; rain
24
+23
+20
24 September, tue
+23
+20
Feels like
+18
741 mmHg
58%
4.8
m/s
NE
Climate normal
+21
+18
24 September, Tuesday. day, 23°; night, 20°; partly cloudy
25
+20
+20
25 September, wed
+20
+20
Feels like
+18
741 mmHg
67%
4.8
m/s
E
Climate normal
+21
+18
25 September, Wednesday. day, 20°; night, 20°; light rain
26
+24
+20
26 September, thu
+24
+20
Feels like
+21
738 mmHg
86%
5
m/s
SE
Climate normal
+20
+17
26 September, Thursday. day, 24°; night, 20°; rain
27
+18
+12
27 September, fri
+18
+12
Feels like
+11
738 mmHg
79%
7.6
m/s
W
Climate normal
+20
+16
27 September, Friday. day, 18°; night, 12°; light rain
28
+14
+9
28 September, sat
+14
+9
Feels like
+6
739 mmHg
66%
7
m/s
W
Climate normal
+18
+17
28 September, Saturday. day, 14°; night, 9°; light rain
29
+10
+10
29 September, sun
+10
+10
Feels like
+4
735 mmHg
51%
4.3
m/s
W
Climate normal
+17
+15
29 September, Sunday. day, 10°; night, 10°; light rain
30
+12
+10
30 September, mon
+12
+10
Feels like
+5
737 mmHg
53%
5.8
m/s
NW
Climate normal
+17
+14
30 September, Monday. day, 12°; night, 10°; rain
1 October
+13
+10
1 October, tue
+13
+10
Feels like
+8
742 mmHg
78%
3.6
m/s
W
Climate normal
+17
+14
1 October, Tuesday. day, 13°; night, 10°; partly cloudy
2
+12
+9
2 October, wed
+12
+9
Feels like
+7
739 mmHg
72%
2.7
m/s
W
Climate normal
+17
+14
2 October, Wednesday. day, 12°; night, 9°; light rain
3
+12
+9
3 October, thu
+12
+9
Feels like
+6
740 mmHg
65%
5.6
m/s
N
Climate normal
+16
+14
3 October, Thursday. day, 12°; night, 9°; light rain
4
+13
+7
4 October, fri
+13
+7
Feels like
+6
744 mmHg
66%
4.3
m/s
NW
Climate normal
+19
+14
4 October, Friday. day, 13°; night, 7°; partly cloudy
5
+15
+10
5 October, sat
+15
+10
Feels like
+8
745 mmHg
85%
2.7
m/s
W
Climate normal
+18
+15
5 October, Saturday. day, 15°; night, 10°; clear
Average for 30 days
9
sunny days
13
days with precipitation
8
cloudy days
9 sunny days; 13 days with precipitation; 8 cloudy days;
64
%
air humidity
5.1
m/s
Wind
S
15
mm of precipitation
(2% of annual average)
+22
°C
Water temperature
air humidity 64%; 15 millimeters of precipitation (2% of annual average); Wind southerly 5.1 Meters per second; Water temperature +22°
Forecast in graphs
Temperature
Humidity, %
Wind, m/s
Pressure, mmHg
N
N
W
SW
SW
S
E
E
S
S
NE
NW
S
S
S
S
SE
SE
NE
E
SE
W
W
W
NW
W
W
N
NW
W
6
Average data for 10 years
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
1
October
2
3
4
5
Daytime temperature
Night-time temperature
