Currently: 86 °F. Scattered clouds. (Weather station: Philadelphia International Airport, USA). See more current weatherSeptember 2017 Weather in Philadelphia — Graph
°F
Time
Wind
(mph)
(mph)
Temp
(°F)
(°F)
52
56
60
64
68
72
76
80
84
88
92
Fri, Sep 1
Lo:57
12 am
Hi:66
12
Lo:57
6 am
Hi:64
11
Lo:66
12 pm
Hi:70
7
Lo:63
6 pm
Hi:68
6
Sat, Sep 2
Lo:57
12 am
Hi:63
7
Lo:57
6 am
Hi:64
9
Lo:61
12 pm
Hi:64
9
Lo:61
6 pm
Hi:61
9
Sun, Sep 3
Lo:63
12 am
Hi:64
4
Lo:64
6 am
Hi:66
7
Lo:68
12 pm
Hi:73
12
Lo:68
6 pm
Hi:73
11
Mon, Sep 4
Lo:61
12 am
Hi:66
8
Lo:63
6 am
Hi:79
9
Lo:79
12 pm
Hi:82
16
Lo:72
6 pm
Hi:79
9
Tue, Sep 5
Lo:70
12 am
Hi:72
9
Lo:70
6 am
Hi:81
11
Lo:82
12 pm
Hi:88
14
Lo:70
6 pm
Hi:81
6
Wed, Sep 6
Lo:70
12 am
Hi:70
2
Lo:63
6 am
Hi:70
7
Lo:63
12 pm
Hi:64
10
Lo:63
6 pm
Hi:63
7
Thu, Sep 7
Lo:59
12 am
Hi:63
8
Lo:59
6 am
Hi:66
9
Lo:70
12 pm
Hi:73
14
Lo:63
6 pm
Hi:72
11
Fri, Sep 8
Lo:57
12 am
Hi:61
7
Lo:57
6 am
Hi:70
11
Lo:72
12 pm
Hi:73
12
Lo:61
6 pm
Hi:70
7
Sat, Sep 9
Lo:55
12 am
Hi:59
7
Lo:55
6 am
Hi:68
11
Lo:66
12 pm
Hi:72
12
Lo:57
6 pm
Hi:66
9
Sun, Sep 10
Lo:55
12 am
Hi:57
9
Lo:55
6 am
Hi:72
11
Lo:72
12 pm
Hi:73
9
Lo:61
6 pm
Hi:72
6
Mon, Sep 11
Lo:57
12 am
Hi:61
6
Lo:55
6 am
Hi:72
6
Lo:73
12 pm
Hi:75
4
Lo:64
6 pm
Hi:73
3
Tue, Sep 12
Lo:61
12 am
Hi:63
2
Lo:63
6 am
Hi:73
2
Lo:75
12 pm
Hi:79
5
Lo:66
6 pm
Hi:75
6
Wed, Sep 13
Lo:64
12 am
Hi:66
3
Lo:64
6 am
Hi:73
3
Lo:68
12 pm
Hi:75
2
Lo:70
6 pm
Hi:75
4
Thu, Sep 14
Lo:70
12 am
Hi:72
4
Lo:70
6 am
Hi:75
7
Lo:81
12 pm
Hi:82
14
Lo:73
6 pm
Hi:79
7
Fri, Sep 15
Lo:66
12 am
Hi:72
3
Lo:66
6 am
Hi:79
4
Lo:81
12 pm
Hi:84
6
Lo:72
6 pm
Hi:81
6
Sat, Sep 16
Lo:70
12 am
Hi:72
4
Lo:68
6 am
Hi:82
3
Lo:84
12 pm
Hi:86
4
Lo:72
6 pm
Hi:79
6
Sun, Sep 17
Lo:70
12 am
Hi:70
3
Lo:70
6 am
Hi:75
5
Lo:77
12 pm
Hi:81
8
Lo:70
6 pm
Hi:75
6
Mon, Sep 18
Lo:68
12 am
Hi:70
7
Lo:70
6 am
Hi:73
9
Lo:73
12 pm
Hi:81
10
Lo:72
6 pm
Hi:75
11
Tue, Sep 19
Lo:72
12 am
Hi:72
13
Lo:72
6 am
Hi:79
17
Lo:73
12 pm
Hi:79
11
Lo:70
6 pm
Hi:75
12
Wed, Sep 20
Lo:72
12 am
Hi:72
12
Lo:72
6 am
Hi:81
12
Lo:82
12 pm
Hi:86
13
Lo:75
6 pm
Hi:81
6
Thu, Sep 21
Lo:70
12 am
Hi:73
6
Lo:73
6 am
Hi:84
9
Lo:84
12 pm
Hi:88
9
Lo:73
6 pm
Hi:81
4
Fri, Sep 22
Lo:72
12 am
Hi:73
8
Lo:70
6 am
Hi:75
9
Lo:77
12 pm
Hi:82
11
Lo:73
6 pm
Hi:79
7
Sat, Sep 23
Lo:68
12 am
Hi:72
6
Lo:66
6 am
Hi:82
11
Lo:84
12 pm
Hi:88
9
Lo:73
6 pm
Hi:84
2
Sun, Sep 24
Lo:70
12 am
Hi:73
4
Lo:72
6 am
Hi:86
6
Lo:88
12 pm
Hi:91
8
Lo:73
6 pm
Hi:84
4
Mon, Sep 25
Lo:70
12 am
Hi:73
2
Lo:70
6 am
Hi:84
1
Lo:86
12 pm
Hi:91
7
Lo:72
6 pm
Hi:81
7
Tue, Sep 26
Lo:66
12 am
Hi:70
4
Lo:68
6 am
Hi:79
8
Lo:81
12 pm
Hi:84
9
Lo:72
6 pm
Hi:79
7
Wed, Sep 27
Lo:72
12 am
Hi:72
8
Lo:73
6 am
Hi:82
11
Lo:84
12 pm
Hi:88
10
Lo:75
6 pm
Hi:82
7
Thu, Sep 28
Lo:73
12 am
Hi:77
9
Lo:72
6 am
Hi:75
16
Lo:75
12 pm
Hi:79
18
Lo:61
6 pm
Hi:72
18
Fri, Sep 29
Lo:55
12 am
Hi:61
6
Lo:55
6 am
Hi:66
7
Lo:66
12 pm
Hi:72
11
Lo:63
6 pm
Hi:70
7
Sat, Sep 30
Lo:57
12 am
Hi:63
8
Lo:57
6 am
Hi:63
14
Lo:61
12 pm
Hi:64
19
Lo:54
6 pm
Hi:59
12
Friday, September 1, 2017, 12:00 am — 6:00 am
66 / 57 °F
Passing clouds.
Humidity: 60%
Barometer: 30.07 "Hg
N
Wind: 12.428 mph
High & Low Weather Summary for September 2017
| Temperature | Humidity | Pressure | |
|---|---|---|---|
| High | 91 °F (Sep 24, 2:54 pm) | 97% (Sep 3, 2:54 am) | 30.38 "Hg (Sep 3, 2:54 am) |
| Low | 53 °F (Sep 30, 11:54 pm) | 28% (Sep 23, 5:54 pm) | 29.72 "Hg (Sep 28, 2:54 am) |
| Average | 71 °F | 69% | 30.02 "Hg |
| * Reported Sep 1 12:54 am — Sep 30 11:54 pm, Philadelphia. 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
Philadelphia Weather History for September 1, 2017
Scroll right to see more
| Conditions | Comfort | |||||||
|---|---|---|---|---|---|---|---|---|
| Time | Temp | Weather | Wind | Humidity | Barometer | Visibility | ||
| 12:54 am Fri, Sep 1 |  | 67 °F | Mostly cloudy. | 14 mph | ↑ | 53% | 30.04 "Hg | 10 mi |
| 1:54 am |  | 65 °F | Passing clouds. | 12 mph | ↑ | 54% | 30.05 "Hg | 10 mi |
| 2:54 am | | 64 °F | Overcast. | 14 mph | ↑ | 56% | 30.05 "Hg | 10 mi |
| 3:54 am | | 62 °F | Passing clouds. | 13 mph | ↑ | 60% | 30.08 "Hg | 10 mi |
| 4:54 am | | 59 °F | Passing clouds. | 12 mph | ↑ | 67% | 30.09 "Hg | 10 mi |
| 5:54 am | | 58 °F | Passing clouds. | 10 mph | ↑ | 67% | 30.12 "Hg | 10 mi |
| 6:54 am |  | 57 °F | Partly sunny. | 7 mph | ↑ | 69% | 30.14 "Hg | 10 mi |
| 7:54 am | | 58 °F | Broken clouds. | 15 mph | ↑ | 58% | 30.15 "Hg | 10 mi |
| 8:54 am | | 59 °F | Partly sunny. | 13 mph | ↑ | 46% | 30.16 "Hg | 10 mi |
| 9:54 am | | 62 °F | Broken clouds. | 18 mph | ↑ | 41% | 30.17 "Hg | 10 mi |
| 10:54 am | | 63 °F | Broken clouds. | 12 mph | ↑ | 41% | 30.18 "Hg | 10 mi |
| 11:54 am | | 65 °F | Partly sunny. | 3 mph | ↑ | 40% | 30.17 "Hg | 10 mi |
| 12:54 pm | | 66 °F | Mostly cloudy. | 5 mph | ↑ | 37% | 30.16 "Hg | 10 mi |
| 1:54 pm | | 68 °F | Partly sunny. | 9 mph | ↑ | 35% | 30.15 "Hg | 10 mi |
| 2:54 pm | | 69 °F | Partly sunny. | 8 mph | ↑ | 38% | 30.14 "Hg | 10 mi |
| 3:54 pm | | 68 °F | Partly sunny. | 7 mph | ↑ | 39% | 30.12 "Hg | 10 mi |
| 4:54 pm | | 69 °F | Partly sunny. | 8 mph | ↑ | 39% | 30.11 "Hg | 10 mi |
| 5:54 pm | | 68 °F | Partly sunny. | 6 mph | ↑ | 40% | 30.11 "Hg | 10 mi |
| 6:54 pm | | 68 °F | Mostly cloudy. | 8 mph | ↑ | 42% | 30.14 "Hg | 10 mi |
| 7:54 pm | | 67 °F | Overcast. | 8 mph | ↑ | 49% | 30.14 "Hg | 10 mi |
| 8:54 pm | | 66 °F | Overcast. | 6 mph | ↑ | 52% | 30.17 "Hg | 10 mi |
| 9:54 pm | | 65 °F | Overcast. | 7 mph | ↑ | 59% | 30.19 "Hg | 10 mi |
| 10:54 pm | | 64 °F | Overcast. | 6 mph | ↑ | 70% | 30.19 "Hg | 10 mi |
| 11:54 pm | | 63 °F | Overcast. | No wind | ↑ | 65% | 30.17 "Hg | 10 mi |
| Weather by CustomWeather, © 2025 | ||||||||