Past Weather in Diamond Bar — Graph
°F
Time
Wind
(mph)
(mph)
Temp
(°F)
(°F)
54
58
62
66
70
74
78
82
86
90
94
98
Mon, Jun 30
Lo:81
6 am
Hi:91
4
Lo:90
12 pm
Hi:93
12
Lo:64
6 pm
Hi:84
9
Tue, Jul 1
Lo:57
12 am
Hi:63
2
Lo:63
6 am
Hi:84
3
Lo:82
12 pm
Hi:90
14
Lo:63
6 pm
Hi:77
9
Wed, Jul 2
Lo:55
12 am
Hi:61
5
Lo:61
6 am
Hi:84
3
Lo:81
12 pm
Hi:86
13
Lo:61
6 pm
Hi:75
9
Thu, Jul 3
Lo:57
12 am
Hi:61
2
Lo:61
6 am
Hi:84
2
Lo:79
12 pm
Hi:86
14
Lo:61
6 pm
Hi:75
9
Fri, Jul 4
Lo:59
12 am
Hi:61
1
Lo:63
6 am
Hi:84
2
Lo:84
12 pm
Hi:91
11
Lo:64
6 pm
Hi:81
9
Sat, Jul 5
Lo:57
12 am
Hi:64
0
Lo:59
6 am
Hi:90
2
Lo:86
12 pm
Hi:95
12
Lo:66
6 pm
Hi:82
8
Sun, Jul 6
Lo:57
12 am
Hi:64
1
Lo:63
6 am
Hi:79
1
Lo:84
12 pm
Hi:91
12
Lo:64
6 pm
Hi:81
9
Mon, Jul 7
Lo:59
12 am
Hi:63
4
Lo:57
6 am
Hi:84
4
Lo:84
12 pm
Hi:91
11
Lo:63
6 pm
Hi:82
9
Tue, Jul 8
Lo:59
12 am
Hi:63
1
Lo:63
6 am
Hi:90
2
Lo:90
12 pm
Hi:95
12
Lo:70
6 pm
Hi:86
7
Wed, Jul 9
Lo:63
12 am
Hi:70
0
Lo:68
6 am
Hi:93
3
Lo:90
12 pm
Hi:97
12
Lo:70
6 pm
Hi:86
7
Thu, Jul 10
Lo:63
12 am
Hi:70
1
Lo:66
6 am
Hi:95
2
Lo:90
12 pm
Hi:97
13
Lo:70
6 pm
Hi:86
7
Fri, Jul 11
Lo:61
12 am
Hi:64
4
Lo:63
6 am
Hi:90
4
Lo:82
12 pm
Hi:90
14
Lo:61
6 pm
Hi:73
7
Sat, Jul 12
Lo:59
12 am
Hi:63
5
Lo:63
6 am
Hi:81
4
Lo:82
12 pm
Hi:88
12
Lo:63
6 pm
Hi:79
7
Sun, Jul 13
Lo:61
12 am
Hi:64
4
Lo:64
6 am
Hi:84
4
Lo:82
12 pm
Hi:90
11
Lo:64
6 pm
Hi:79
8
Mon, Jul 14
Lo:61
12 am
Hi:64
4
Lo:64
6 am
Hi:86
2
Lo:81
12 pm
Hi:88
14
Lo:63
6 pm
Hi:75
7
Tue, Jul 15
Lo:61
12 am
Hi:63
3
Lo:61
6 am
Hi:73
1
Monday, June 30, 2025, 6:00 am — 12:00 pm
91 / 81 °F
Sunny.
Humidity: 28%
Barometer: 29.88 "Hg
N
Wind: 3.728 mph
Diamond Bar Temperature Yesterday
Maximum temperature yesterday: 87 °F (at 12:53 pm)
Minimum temperature yesterday: 61 °F (at 4:35 am)
Average temperature yesterday: 72 °F
High & Low Weather Summary for the Past Weeks
| Temperature | Humidity | Pressure | |
|---|---|---|---|
| High | 97 °F (Jul 9, 2:53 pm) | 97% (Jul 12, 5:53 am) | 30.07 "Hg (Jul 12, 5:53 am) |
| Low | 56 °F (Jul 2, 4:53 am) | 17% (Jul 9, 2:53 pm) | 29.79 "Hg (Jul 1, 5:53 pm) |
| Average | 73 °F | 61% | 29.94 "Hg |
| * Reported Jun 30 9:53 am — Jul 15 9:53 am, Diamond Bar. 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
Diamond Bar Weather History for the Previous 24 Hours
Scroll right to see more
| Conditions | Comfort | |||||||
|---|---|---|---|---|---|---|---|---|
| Time | Temp | Weather | Wind | Humidity | Barometer | Visibility | ||
| 9:53 am Tue, Jul 15 |  | 74 °F | Sunny. | No wind | ↑ | 62% | 29.96 "Hg | 10 mi |
| 8:53 am | | 69 °F | Sunny. | 3 mph | ↑ | 73% | 29.96 "Hg | 6 mi |
| 7:53 am |  | 65 °F | Haze. | No wind | ↑ | 81% | 29.96 "Hg | 6 mi |
| 6:53 am |  | 62 °F | Scattered clouds. | No wind | ↑ | 90% | 29.95 "Hg | 4 mi |
| 6:29 am |  | 61 °F | Fog. | 3 mph | ↑ | 90% | 29.96 "Hg | 6 mi |
| 5:53 am | | 60 °F | Fog. | 3 mph | ↑ | 90% | 29.93 "Hg | 6 mi |
| 4:53 am |  | 61 °F | Clear. | No wind | ↑ | 87% | 29.92 "Hg | 8 mi |
| 3:53 am | | 61 °F | Clear. | 5 mph | ↑ | 87% | 29.93 "Hg | 9 mi |
| 2:53 am | | 61 °F | Clear. | 5 mph | ↑ | 90% | 29.93 "Hg | 10 mi |
| 1:53 am | | 61 °F | Clear. | 5 mph | ↑ | 87% | 29.93 "Hg | 10 mi |
| 12:53 am | | 62 °F | Clear. | No wind | ↑ | 86% | 29.93 "Hg | 10 mi |
| 11:53 pm Mon, Jul 14 | | 63 °F | Clear. | 3 mph | ↑ | 84% | 29.93 "Hg | 10 mi |
| 10:53 pm | | 64 °F | Clear. | 5 mph | ↑ | 81% | 29.93 "Hg | 10 mi |
| 9:53 pm | | 66 °F | Clear. | 6 mph | ↑ | 75% | 29.92 "Hg | 10 mi |
| 8:53 pm | | 69 °F | Clear. | 8 mph | ↑ | 70% | 29.90 "Hg | 10 mi |
| 7:53 pm | | 72 °F | Sunny. | 9 mph | ↑ | 64% | 29.88 "Hg | 10 mi |
| 6:53 pm | | 76 °F | Sunny. | 12 mph | ↑ | 58% | 29.87 "Hg | 10 mi |
| 5:53 pm | | 81 °F | Sunny. | 16 mph | ↑ | 49% | 29.85 "Hg | 10 mi |
| 4:53 pm | | 85 °F | Passing clouds. | 14 mph | ↑ | 42% | 29.86 "Hg | 10 mi |
| 3:53 pm | | 87 °F | Passing clouds. | 14 mph | ↑ | 40% | 29.88 "Hg | 10 mi |
| 2:53 pm | | 86 °F | Sunny. | 15 mph | ↑ | 42% | 29.89 "Hg | 10 mi |
| 1:53 pm | | 87 °F | Sunny. | 14 mph | ↑ | 43% | 29.91 "Hg | 10 mi |
| 12:53 pm | | 87 °F | Sunny. | 9 mph | ↑ | 43% | 29.92 "Hg | 10 mi |
| 11:53 am | | 86 °F | Sunny. | 9 mph | ↑ | 45% | 29.93 "Hg | 10 mi |
| Weather by CustomWeather, © 2025 | ||||||||