Currently: 62 °F. Partly sunny. (Weather station: Chicago Midway Airport, USA). See more current weatherSeptember 2021 Weather in Chicago — Graph
°F
Time
Wind
(mph)
(mph)
Temp
(°F)
(°F)
50
54
58
62
66
70
74
78
82
86
90
Wed, Sep 1
Lo:72
12 am
Hi:75
13
Lo:72
6 am
Hi:75
15
Lo:73
12 pm
Hi:77
16
Lo:68
6 pm
Hi:73
9
Thu, Sep 2
Lo:64
12 am
Hi:66
3
Lo:64
6 am
Hi:75
4
Lo:75
12 pm
Hi:77
11
Lo:70
6 pm
Hi:73
8
Fri, Sep 3
Lo:66
12 am
Hi:70
5
Lo:66
6 am
Hi:75
7
Lo:73
12 pm
Hi:75
8
Lo:70
6 pm
Hi:73
9
Sat, Sep 4
Lo:66
12 am
Hi:72
8
Lo:66
6 am
Hi:73
9
Lo:73
12 pm
Hi:73
8
Lo:66
6 pm
Hi:73
11
Sun, Sep 5
Lo:61
12 am
Hi:64
4
Lo:61
6 am
Hi:81
7
Lo:81
12 pm
Hi:82
15
Lo:72
6 pm
Hi:81
10
Mon, Sep 6
Lo:64
12 am
Hi:72
7
Lo:63
6 am
Hi:81
2
Lo:75
12 pm
Hi:81
9
Lo:70
6 pm
Hi:73
7
Tue, Sep 7
Lo:68
12 am
Hi:70
7
Lo:70
6 am
Hi:84
14
Lo:72
12 pm
Hi:90
11
Lo:66
6 pm
Hi:72
6
Wed, Sep 8
Lo:61
12 am
Hi:64
6
Lo:59
6 am
Hi:79
10
Lo:75
12 pm
Hi:81
17
Lo:66
6 pm
Hi:73
12
Thu, Sep 9
Lo:59
12 am
Hi:66
5
Lo:59
6 am
Hi:75
6
Lo:73
12 pm
Hi:75
8
Lo:64
6 pm
Hi:72
6
Fri, Sep 10
Lo:61
12 am
Hi:64
5
Lo:61
6 am
Hi:79
7
Lo:79
12 pm
Hi:81
11
Lo:70
6 pm
Hi:77
8
Sat, Sep 11
Lo:66
12 am
Hi:70
9
Lo:66
6 am
Hi:81
11
Lo:82
12 pm
Hi:88
16
Lo:77
6 pm
Hi:84
9
Sun, Sep 12
Lo:73
12 am
Hi:75
11
Lo:73
6 am
Hi:82
14
Lo:86
12 pm
Hi:88
13
Lo:72
6 pm
Hi:79
8
Mon, Sep 13
Lo:72
12 am
Hi:72
6
Lo:72
6 am
Hi:82
5
Lo:82
12 pm
Hi:88
9
Lo:75
6 pm
Hi:86
7
Tue, Sep 14
Lo:73
12 am
Hi:77
12
Lo:73
6 am
Hi:84
19
Lo:82
12 pm
Hi:86
16
Lo:68
6 pm
Hi:77
12
Wed, Sep 15
Lo:61
12 am
Hi:66
6
Lo:61
6 am
Hi:75
6
Lo:72
12 pm
Hi:75
9
Lo:66
6 pm
Hi:72
7
Thu, Sep 16
Lo:61
12 am
Hi:64
2
Lo:61
6 am
Hi:79
7
Lo:79
12 pm
Hi:82
10
Lo:72
6 pm
Hi:77
7
Fri, Sep 17
Lo:64
12 am
Hi:70
6
Lo:66
6 am
Hi:84
9
Lo:86
12 pm
Hi:90
8
Lo:72
6 pm
Hi:86
9
Sat, Sep 18
Lo:70
12 am
Hi:72
14
Lo:70
6 am
Hi:75
10
Lo:73
12 pm
Hi:79
11
Lo:70
6 pm
Hi:72
7
Sun, Sep 19
Lo:68
12 am
Hi:70
4
Lo:68
6 am
Hi:84
3
Lo:82
12 pm
Hi:88
9
Lo:79
6 pm
Hi:82
7
Mon, Sep 20
Lo:73
12 am
Hi:77
9
Lo:72
6 am
Hi:77
12
Lo:79
12 pm
Hi:82
14
Lo:75
6 pm
Hi:81
16
Tue, Sep 21
Lo:68
12 am
Hi:75
15
Lo:63
6 am
Hi:68
11
Lo:64
12 pm
Hi:70
12
Lo:63
6 pm
Hi:64
13
Wed, Sep 22
Lo:59
12 am
Hi:63
12
Lo:57
6 am
Hi:59
15
Lo:61
12 pm
Hi:63
21
Lo:59
6 pm
Hi:61
16
Thu, Sep 23
Lo:55
12 am
Hi:57
14
Lo:54
6 am
Hi:61
13
Lo:63
12 pm
Hi:68
14
Lo:55
6 pm
Hi:63
6
Fri, Sep 24
Lo:54
12 am
Hi:55
9
Lo:52
6 am
Hi:73
11
Lo:75
12 pm
Hi:81
17
Lo:57
6 pm
Hi:75
17
Sat, Sep 25
Lo:52
12 am
Hi:57
11
Lo:52
6 am
Hi:66
10
Lo:66
12 pm
Hi:70
14
Lo:61
6 pm
Hi:68
9
Sun, Sep 26
Lo:57
12 am
Hi:61
9
Lo:57
6 am
Hi:75
12
Lo:81
12 pm
Hi:84
17
Lo:72
6 pm
Hi:79
15
Mon, Sep 27
Lo:66
12 am
Hi:70
13
Lo:66
6 am
Hi:81
13
Lo:72
12 pm
Hi:88
12
Lo:64
6 pm
Hi:68
12
Tue, Sep 28
Lo:63
12 am
Hi:64
10
Lo:64
6 am
Hi:72
11
Lo:70
12 pm
Hi:72
11
Lo:64
6 pm
Hi:66
6
Wed, Sep 29
Lo:61
12 am
Hi:64
3
Lo:61
6 am
Hi:79
4
Lo:75
12 pm
Hi:81
10
Lo:66
6 pm
Hi:72
7
Thu, Sep 30
Lo:61
12 am
Hi:64
2
Lo:63
6 am
Hi:79
4
Lo:75
12 pm
Hi:81
9
Lo:68
6 pm
Hi:73
5
Wednesday, September 1, 2021, 12:00 am — 6:00 am
75 / 72 °F
Passing clouds.
Humidity: 56%
Barometer: 29.83 "Hg
ENE
Wind: 13.05 mph
High & Low Weather Summary for September 2021
| Temperature | Humidity | Pressure | |
|---|---|---|---|
| High | 90 °F (Sep 7, 12:53 pm) | 87% (Sep 21, 7:53 am) | 30.18 "Hg (Sep 21, 7:53 am) |
| Low | 51 °F (Sep 25, 6:53 am) | 23% (Sep 25, 3:53 pm) | 29.61 "Hg (Sep 7, 12:53 pm) |
| Average | 71 °F | 57% | 29.96 "Hg |
| * Reported Sep 1 12:53 am — Sep 30 11:53 pm, Chicago. Weather by CustomWeather, © 2025 | |||
Note: Actual official high and low records may vary slightly from our data, if they occured in-between our weather recording intervals... More about our weather records
Chicago Weather History for September 1, 2021
Scroll right to see more
| Conditions | Comfort | |||||||
|---|---|---|---|---|---|---|---|---|
| Time | Temp | Weather | Wind | Humidity | Barometer | Visibility | ||
| 12:53 am Wed, Sep 1 |  | 75 °F | Mostly cloudy. | 15 mph | ↑ | 58% | 29.80 "Hg | 10 mi |
| 1:53 am |  | 74 °F | Passing clouds. | 13 mph | ↑ | 57% | 29.81 "Hg | 10 mi |
| 2:53 am | | 74 °F | Passing clouds. | 13 mph | ↑ | 57% | 29.82 "Hg | 10 mi |
| 3:53 am | | 73 °F | Passing clouds. | 12 mph | ↑ | 57% | 29.83 "Hg | 10 mi |
| 4:53 am | | 73 °F | Passing clouds. | 15 mph | ↑ | 53% | 29.85 "Hg | 10 mi |
| 5:53 am | | 72 °F | Passing clouds. | 13 mph | ↑ | 55% | 29.86 "Hg | 10 mi |
| 6:53 am |  | 71 °F | Scattered clouds. | 12 mph | ↑ | 57% | 29.90 "Hg | 10 mi |
| 7:53 am | | 73 °F | Scattered clouds. | 16 mph | ↑ | 55% | 29.91 "Hg | 10 mi |
| 8:53 am | | 74 °F | Partly sunny. | 15 mph | ↑ | 53% | 29.93 "Hg | 10 mi |
| 9:53 am | | 73 °F | Broken clouds. | 17 mph | ↑ | 50% | 29.95 "Hg | 10 mi |
| 10:53 am | | 75 °F | Broken clouds. | 17 mph | ↑ | 48% | 29.95 "Hg | 10 mi |
| 11:53 am | | 76 °F | Partly sunny. | 14 mph | ↑ | 47% | 29.96 "Hg | 10 mi |
| 12:53 pm | | 77 °F | Scattered clouds. | 16 mph | ↑ | 42% | 29.96 "Hg | 10 mi |
| 1:53 pm | | 77 °F | Scattered clouds. | 16 mph | ↑ | 40% | 29.95 "Hg | 10 mi |
| 2:53 pm | | 77 °F | Passing clouds. | 17 mph | ↑ | 44% | 29.96 "Hg | 10 mi |
| 3:53 pm | | 75 °F | Passing clouds. | 18 mph | ↑ | 47% | 29.96 "Hg | 10 mi |
| 4:53 pm | | 75 °F | Passing clouds. | 16 mph | ↑ | 42% | 29.97 "Hg | 10 mi |
| 5:53 pm | | 74 °F | Passing clouds. | 14 mph | ↑ | 46% | 29.97 "Hg | 10 mi |
| 6:53 pm | | 73 °F | Passing clouds. | 13 mph | ↑ | 46% | 29.98 "Hg | 10 mi |
| 7:53 pm | | 71 °F | Passing clouds. | 9 mph | ↑ | 51% | 29.98 "Hg | 10 mi |
| 8:53 pm |  | 71 °F | Clear. | 9 mph | ↑ | 53% | 30.01 "Hg | 10 mi |
| 9:53 pm | | 70 °F | Clear. | 7 mph | ↑ | 57% | 30.00 "Hg | 10 mi |
| 10:53 pm | | 68 °F | Clear. | 7 mph | ↑ | 63% | 30.01 "Hg | 10 mi |
| 11:53 pm | | 68 °F | Passing clouds. | 7 mph | ↑ | 65% | 30.01 "Hg | 10 mi |
| Weather by CustomWeather, © 2025 | ||||||||