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Hour-by-Hour Forecast for Diamond Bar, California, USA

Currently: 64 °F. Clear. (Weather station: Chino Airport, USA). See more current weather

Hour-by-hour Forecast in Diamond Bar — Graph

°F
Time
Wind
(mph)
Temp
(°F)
59
63
67
71
75
79
83
87
91
95
Wednesday, July 9, 2025
5 am
64
1
6 am
64
2
7 am
68
2
8 am
72
3
9 am
77
4
10 am
82
5
11 am
85
6
12 pm
89
7
1 pm
92
9
2 pm
94
10
3 pm
95
10
4 pm
95
10
5 pm
93
11
6 pm
91
9
7 pm
87
8
8 pm
84
7
9 pm
79
5
10 pm
76
4
11 pm
74
2
Thursday, July 10, 2025
12 am
72
2
1 am
71
2
2 am
69
2
3 am
68
2
4 am
67
2
5 am
67
2
6 am
66
2
7 am
70
2
8 am
74
2
9 am
78
3
10 am
83
4
11 am
87
5
12 pm
90
7
1 pm
93
9
2 pm
95
11
3 pm
96
11
4 pm
95
11
5 pm
94
11
6 pm
91
10
7 pm
88
8
8 pm
85
6
9 pm
79
5
10 pm
76
4
11 pm
74
3
Friday, July 11, 2025
12 am
72
3
1 am
70
3
2 am
68
2
3 am
67
2
4 am
65
2
5 am
64
2
6 am
64
2
7 am
67
3
8 am
71
3
9 am
75
4
10 am
79
6
11 am
82
7
12 pm
85
9
1 pm
88
11
2 pm
89
13
3 pm
89
12
4 pm
88
11
5 pm
85
10
6 pm
82
9
7 pm
78
8
8 pm
75
7
9 pm
71
6
10 pm
69
5
11 pm
67
4
Saturday, July 12, 2025
12 am
66
4
1 am
64
3
2 am
63
3
3 am
63
3
4 am
62
3
5 am
62
3
6 am
63
3
7 am
64
3
8 am
67
3
9 am
71
4
10 am
75
6
11 am
78
7
12 pm
82
8
1 pm
85
10
2 pm
87
12
3 pm
88
11
4 pm
86
11
5 pm
85
11
6 pm
83
10
7 pm
80
9
8 pm
76
7
9 pm
71
6
10 pm
69
5
11 pm
67
4
Sunday, July 13, 2025
12 am
66
4
1 am
64
3
2 am
64
3
3 am
63
3
4 am
62
3
5 am
61
3
6 am
61
3
7 am
63
3
8 am
66
4
9 am
70
5
10 am
73
6
11 am
76
7
12 pm
80
8
1 pm
84
9
2 pm
87
10
3 pm
88
10
4 pm
88
11
5 pm
86
11
6 pm
83
10
7 pm
79
8
8 pm
75
7
9 pm
71
6
10 pm
68
5
11 pm
67
4
Monday, July 14, 2025
12 am
65
4
1 am
64
3
2 am
63
3
3 am
62
3
4 am
61
3
5 am
61
2
6 am
61
3
7 am
63
3
8 am
66
3
9 am
70
4
10 am
74
6
11 am
77
7
12 pm
81
8
1 pm
84
10
2 pm
87
11
3 pm
87
11
4 pm
86
11
5 pm
85
11
6 pm
83
9
7 pm
80
8
8 pm
76
7
9 pm
71
6
10 pm
69
5
11 pm
68
5
Tuesday, July 15, 2025
12 am
67
4
1 am
65
4
2 am
65
4
3 am
64
3
4 am
64
3
5 am
64
3
6 am
64
3
7 am
64
3
8 am
67
3
9 am
71
5
10 am
74
6
11 am
78
8
12 pm
82
8
1 pm
85
9
2 pm
88
10
3 pm
88
10
4 pm
87
10
5 pm
85
11
6 pm
82
9
7 pm
79
8
8 pm
75
7
9 pm
71
6
10 pm
70
6
Wed, Jul 9 at 5:00 am
64 °F
Scattered clouds.
Feels Like: 64 °F
Humidity: 67%
Precipitation: Rain: 0 Snow: 0
Precipitation Chance: 0%
W
Wind: 1 mph

Detailed Hourly Forecast — Next 24 hours

Scroll right to see more
 ConditionsComfortPrecipitation
Time TempWeatherFeels LikeWind HumidityChanceAmount
5:00 am
Wed, Jul 9
64 °FScattered clouds.64 °F1 mph67%0%0.00" (snow)
0.00" (rain)
6:00 am64 °FScattered clouds.64 °F2 mph68%0%0.00" (snow)
0.00" (rain)
7:00 am68 °FMostly sunny.68 °F2 mph60%0%0.00" (snow)
0.00" (rain)
8:00 am72 °FMostly sunny.77 °F3 mph51%0%0.00" (snow)
0.00" (rain)
9:00 am77 °FMostly sunny.78 °F4 mph44%0%0.00" (snow)
0.00" (rain)
10:00 am82 °FSunny.81 °F5 mph38%0%0.00" (snow)
0.00" (rain)
11:00 am85 °FSunny.83 °F6 mph34%0%0.00" (snow)
0.00" (rain)
12:00 pm89 °FSunny.86 °F7 mph30%0%0.00" (snow)
0.00" (rain)
1:00 pm92 °FSunny.89 °F9 mph27%0%0.00" (snow)
0.00" (rain)
2:00 pm94 °FSunny.92 °F10 mph25%0%0.00" (snow)
0.00" (rain)
3:00 pm95 °FSunny.93 °F10 mph24%0%0.00" (snow)
0.00" (rain)
4:00 pm95 °FSunny.93 °F10 mph24%0%0.00" (snow)
0.00" (rain)
5:00 pm93 °FSunny.90 °F11 mph25%0%0.00" (snow)
0.00" (rain)
6:00 pm91 °FSunny.88 °F9 mph27%0%0.00" (snow)
0.00" (rain)
7:00 pm87 °FSunny.85 °F8 mph31%0%0.00" (snow)
0.00" (rain)
8:00 pm84 °FSunny.82 °F7 mph36%0%0.00" (snow)
0.00" (rain)
9:00 pm79 °FClear.80 °F5 mph43%0%0.00" (snow)
0.00" (rain)
10:00 pm76 °FClear.78 °F4 mph48%0%0.00" (snow)
0.00" (rain)
11:00 pm74 °FClear.77 °F2 mph53%0%0.00" (snow)
0.00" (rain)
12:00 am
Thu, Jul 10
72 °FClear.76 °F2 mph58%0%0.00" (snow)
0.00" (rain)
1:00 am71 °FClear.76 °F2 mph61%0%0.00" (snow)
0.00" (rain)
2:00 am69 °FClear.69 °F2 mph64%0%0.00" (snow)
0.00" (rain)
3:00 am68 °FClear.68 °F2 mph65%0%0.00" (snow)
0.00" (rain)
4:00 am67 °FClear.67 °F2 mph66%0%0.00" (snow)
0.00" (rain)
* Updated Wednesday, July 9, 2025 12:42:24 am Diamond Bar time - Weather by CustomWeather, © 2025

14 days extended forecast