September 2020 Weather in Chicago — Graph
°F
Time
Wind
(mph)
(mph)
Temp
(°F)
(°F)
43
47
51
55
59
63
67
71
75
79
83
87
Tue, Sep 1
Lo:70
12 am
Hi:77
8
Lo:72
6 am
Hi:73
9
Lo:70
12 pm
Hi:72
5
Lo:72
6 pm
Hi:72
6
Wed, Sep 2
Lo:70
12 am
Hi:72
10
Lo:72
6 am
Hi:81
10
Lo:84
12 pm
Hi:88
14
Lo:72
6 pm
Hi:82
9
Thu, Sep 3
Lo:66
12 am
Hi:72
9
Lo:68
6 am
Hi:86
14
Lo:81
12 pm
Hi:88
22
Lo:66
6 pm
Hi:77
12
Fri, Sep 4
Lo:57
12 am
Hi:64
6
Lo:57
6 am
Hi:73
8
Lo:75
12 pm
Hi:79
14
Lo:68
6 pm
Hi:77
7
Sat, Sep 5
Lo:64
12 am
Hi:66
8
Lo:64
6 am
Hi:82
17
Lo:75
12 pm
Hi:82
14
Lo:68
6 pm
Hi:73
6
Sun, Sep 6
Lo:64
12 am
Hi:66
8
Lo:59
6 am
Hi:66
10
Lo:72
12 pm
Hi:82
16
Lo:79
6 pm
Hi:79
17
Mon, Sep 7
Lo:73
12 am
Hi:79
12
Lo:72
6 am
Hi:77
10
Lo:70
12 pm
Hi:75
14
Lo:66
6 pm
Hi:68
17
Tue, Sep 8
Lo:61
12 am
Hi:66
14
Lo:63
6 am
Hi:64
12
Lo:63
12 pm
Hi:66
12
Lo:61
6 pm
Hi:63
12
Wed, Sep 9
Lo:61
12 am
Hi:63
11
Lo:61
6 am
Hi:64
11
Lo:64
12 pm
Hi:66
9
Lo:63
6 pm
Hi:64
10
Thu, Sep 10
Lo:57
12 am
Hi:63
11
Lo:63
6 am
Hi:64
14
Lo:63
12 pm
Hi:66
14
Lo:61
6 pm
Hi:63
9
Fri, Sep 11
Lo:63
12 am
Hi:63
11
Lo:63
6 am
Hi:63
11
Lo:64
12 pm
Hi:68
10
Lo:66
6 pm
Hi:70
10
Sat, Sep 12
Lo:64
12 am
Hi:66
10
Lo:64
6 am
Hi:66
9
Lo:70
12 pm
Hi:73
10
Lo:64
6 pm
Hi:73
9
Sun, Sep 13
Lo:63
12 am
Hi:64
6
Lo:61
6 am
Hi:72
9
Lo:70
12 pm
Hi:75
9
Lo:64
6 pm
Hi:66
5
Mon, Sep 14
Lo:57
12 am
Hi:63
0
Lo:57
6 am
Hi:70
2
Lo:72
12 pm
Hi:73
6
Lo:64
6 pm
Hi:70
6
Tue, Sep 15
Lo:61
12 am
Hi:63
6
Lo:59
6 am
Hi:73
9
Lo:73
12 pm
Hi:79
9
Lo:66
6 pm
Hi:75
7
Wed, Sep 16
Lo:61
12 am
Hi:64
7
Lo:61
6 am
Hi:75
11
Lo:79
12 pm
Hi:82
12
Lo:72
6 pm
Hi:81
11
Thu, Sep 17
Lo:64
12 am
Hi:70
12
Lo:64
6 am
Hi:68
19
Lo:64
12 pm
Hi:68
16
Lo:61
6 pm
Hi:63
11
Fri, Sep 18
Lo:57
12 am
Hi:61
14
Lo:57
6 am
Hi:61
18
Lo:57
12 pm
Hi:61
16
Lo:50
6 pm
Hi:55
7
Sat, Sep 19
Lo:48
12 am
Hi:50
3
Lo:48
6 am
Hi:61
7
Lo:63
12 pm
Hi:64
8
Lo:54
6 pm
Hi:61
4
Sun, Sep 20
Lo:50
12 am
Hi:54
1
Lo:52
6 am
Hi:68
8
Lo:70
12 pm
Hi:72
11
Lo:63
6 pm
Hi:66
8
Mon, Sep 21
Lo:54
12 am
Hi:61
8
Lo:52
6 am
Hi:70
7
Lo:72
12 pm
Hi:75
8
Lo:63
6 pm
Hi:73
6
Tue, Sep 22
Lo:55
12 am
Hi:61
4
Lo:55
6 am
Hi:75
6
Lo:75
12 pm
Hi:79
9
Lo:64
6 pm
Hi:75
7
Wed, Sep 23
Lo:57
12 am
Hi:64
4
Lo:59
6 am
Hi:75
6
Lo:75
12 pm
Hi:79
10
Lo:64
6 pm
Hi:72
6
Thu, Sep 24
Lo:57
12 am
Hi:63
7
Lo:55
6 am
Hi:73
7
Lo:77
12 pm
Hi:79
11
Lo:68
6 pm
Hi:75
6
Fri, Sep 25
Lo:61
12 am
Hi:66
6
Lo:59
6 am
Hi:75
6
Lo:77
12 pm
Hi:81
13
Lo:70
6 pm
Hi:77
9
Sat, Sep 26
Lo:63
12 am
Hi:66
10
Lo:63
6 am
Hi:66
13
Lo:68
12 pm
Hi:79
17
Lo:72
6 pm
Hi:79
19
Sun, Sep 27
Lo:66
12 am
Hi:70
14
Lo:66
6 am
Hi:73
8
Lo:72
12 pm
Hi:79
11
Lo:55
6 pm
Hi:66
12
Mon, Sep 28
Lo:54
12 am
Hi:54
6
Lo:54
6 am
Hi:54
11
Lo:57
12 pm
Hi:63
13
Lo:52
6 pm
Hi:57
7
Tue, Sep 29
Lo:46
12 am
Hi:52
6
Lo:45
6 am
Hi:57
7
Lo:57
12 pm
Hi:61
11
Lo:54
6 pm
Hi:57
9
Wed, Sep 30
Lo:52
12 am
Hi:54
9
Lo:54
6 am
Hi:64
16
Lo:61
12 pm
Hi:68
21
Lo:54
6 pm
Hi:61
8
Tuesday, September 1, 2020, 12:00 am — 6:00 am
77 / 70 °F
Overcast.
Humidity: 80%
Barometer: 29.86 "Hg
N
Wind: 8.078 mph
High & Low Weather Summary for September 2020
| Temperature | Humidity | Pressure | |
|---|---|---|---|
| High | 87 °F (Sep 2, 2:53 pm) | 100% (Sep 8, 4:53 am) | 30.44 "Hg (Sep 8, 4:53 am) |
| Low | 45 °F (Sep 29, 6:53 am) | 16% (Sep 3, 4:53 pm) | 29.55 "Hg (Sep 30, 5:53 am) |
| Average | 66 °F | 66% | 30.03 "Hg |
| * Reported Sep 1 12:14 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, 2020
Scroll right to see more
| Conditions | Comfort | |||||||
|---|---|---|---|---|---|---|---|---|
| Time | Temp | Weather | Wind | Humidity | Barometer | Visibility | ||
| 12:14 am Tue, Sep 1 |  | 77 °F | Mostly cloudy. | 5 mph | ↑ | 69% | 29.86 "Hg | 9 mi |
| 12:35 am |  | 73 °F | Light rain. Fog. | 6 mph | ↑ | 90% | 29.87 "Hg | 5 mi |
| 12:53 am | | 73 °F | Overcast. | 7 mph | ↑ | 88% | 29.84 "Hg | 10 mi |
| 1:53 am | | 74 °F | Mostly cloudy. | 6 mph | ↑ | 82% | 29.84 "Hg | 10 mi |
| 2:53 am | | 73 °F | Mostly cloudy. | 10 mph | ↑ | 79% | 29.84 "Hg | 10 mi |
| 3:18 am | | 72 °F | Mostly cloudy. | 9 mph | ↑ | 78% | 29.87 "Hg | 10 mi |
| 3:53 am | | 72 °F | Mostly cloudy. | 8 mph | ↑ | 76% | 29.85 "Hg | 10 mi |
| 4:53 am | | 70 °F | Light rain. Overcast. | 13 mph | ↑ | 79% | 29.85 "Hg | 10 mi |
| 5:53 am | | 70 °F | Overcast. | 7 mph | ↑ | 76% | 29.87 "Hg | 10 mi |
| 6:53 am |  | 71 °F | Overcast. | 8 mph | ↑ | 76% | 29.88 "Hg | 10 mi |
| 7:53 am | | 71 °F | Overcast. | 8 mph | ↑ | 73% | 29.89 "Hg | 10 mi |
| 8:53 am | | 72 °F | Overcast. | 12 mph | ↑ | 76% | 29.88 "Hg | 10 mi |
| 9:53 am | | 72 °F | Overcast. | 13 mph | ↑ | 73% | 29.88 "Hg | 10 mi |
| 10:53 am | | 72 °F | Overcast. | 8 mph | ↑ | 73% | 29.90 "Hg | 10 mi |
| 11:53 am | | 73 °F | Overcast. | 7 mph | ↑ | 71% | 29.88 "Hg | 10 mi |
| 12:53 pm | | 72 °F | Overcast. | 5 mph | ↑ | 71% | 29.89 "Hg | 10 mi |
| 1:53 pm |  | 70 °F | Light rain. Cloudy. | 8 mph | ↑ | 84% | 29.89 "Hg | 8 mi |
| 3:05 pm | | 69 °F | Light rain. Mostly cloudy. | 9 mph | ↑ | 93% | 29.86 "Hg | 10 mi |
| 3:38 pm | | 70 °F | Cloudy. | 7 mph | ↑ | 90% | 29.86 "Hg | 10 mi |
| 3:53 pm | | 70 °F | Light rain. More clouds than sun. | No wind | ↑ | 90% | 29.84 "Hg | 10 mi |
| 4:53 pm | | 70 °F | Light rain. Mostly cloudy. | 5 mph | ↑ | 93% | 29.84 "Hg | 9 mi |
| 5:53 pm | | 71 °F | Light rain. Fog. | 3 mph | ↑ | 90% | 29.82 "Hg | 6 mi |
| 6:22 pm | | 71 °F | Cloudy. | 7 mph | ↑ | 93% | 29.82 "Hg | 9 mi |
| 6:53 pm | | 71 °F | Light rain. Cloudy. | 3 mph | ↑ | 93% | 29.78 "Hg | 9 mi |
| 7:53 pm | | 71 °F | Mostly cloudy. | No wind | ↑ | 93% | 29.78 "Hg | 8 mi |
| 8:53 pm |  | 71 °F | Fog. | 3 mph | ↑ | 93% | 29.80 "Hg | 6 mi |
| 9:21 pm | | 72 °F | Fog. | 6 mph | ↑ | 91% | 29.82 "Hg | 6 mi |
| 9:53 pm | | 71 °F | Fog. | 7 mph | ↑ | 93% | 29.79 "Hg | 6 mi |
| 10:15 pm | | 71 °F | Fog. | 5 mph | ↑ | 93% | 29.82 "Hg | 6 mi |
| 10:53 pm | | 71 °F | Passing clouds. | 8 mph | ↑ | 93% | 29.78 "Hg | 7 mi |
| 11:53 pm | | 71 °F | Passing clouds. | 10 mph | ↑ | 93% | 29.76 "Hg | 7 mi |
| Weather by CustomWeather, © 2025 | ||||||||