Every city on the map carries real forecast data from the same models as its city page, refreshed several times a day. The icon is the day's overall look; the number is the afternoon high.
Next 14 days at a glance
from the model forecast
Hottest day
33°
Fri, Oct 16
Coldest night
14°
Wed, Oct 21
Days with precip
2 / 14
of 14 forecast days
Nicest day
Fri, Oct 23
mild, dry, light wind
The next 4 weekends
plan ahead
Sat 17 – Sun 18 Oct
32° 22°
2% precip chance
Sat 24 – Sun 25 Oct
29° 18°
0% precip chance
31 Oct – 1 Nov
30° 14°
typical range
Sat 7 – Sun 8 Nov
24° 14°
typical range
30 days — Diamond Bar
14 forecast + 16 climatology
Thu · Today Sunny
31°20°0%⌄
Wind15 mph NE
Gusts28 mph
UV index6 – High
Precip chance0%
Sunrise06:56
Sunset18:17
Fri · Tomorrow Sunny
33°23°0%⌄
Wind19 mph NE
Gusts34 mph
UV index6 – High
Precip chance0%
Sunrise06:57
Sunset18:16
Saturday 17/10 Sunny
32°23°2%⌄
Wind9 mph E
Gusts20 mph
UV index6 – Moderate
Precip chance2%
Sunrise06:58
Sunset18:15
Sunday 18/10 Sunny
30°22°0%⌄
Wind11 mph SW
Gusts20 mph
UV index6 – Moderate
Precip chance0%
Sunrise06:58
Sunset18:13
Monday 19/10 Sunny
28°20°1%⌄
Wind11 mph SW
Gusts19 mph
UV index6 – Moderate
Precip chance1%
Sunrise06:59
Sunset18:12
Tuesday 20/10 Showers
20°17°1.1 mm⌄
Wind10 mph SW
Gusts21 mph
UV index4 – Moderate
Precip chance57%
Sunrise07:00
Sunset18:11
Wednesday 21/10 Showers
19°14°23.8 mm⌄
Wind8 mph SW
Gusts15 mph
UV index4 – Moderate
Precip chance77%
Sunrise07:01
Sunset18:10
Thursday 22/10 Sunny
21°16°0.6 mm⌄
Wind10 mph SW
Gusts16 mph
UV index5 – Moderate
Precip chance36%
Sunrise07:02
Sunset18:09
Friday 23/10 Sunny
24°16°2%⌄
Wind6 mph W
Gusts17 mph
UV index6 – High
Precip chance2%
Sunrise07:02
Sunset18:08
Saturday 24/10 Sunny
29°18°0%⌄
Wind9 mph NE
Gusts17 mph
UV index7 – High
Precip chance0%
Sunrise07:03
Sunset18:06
Sunday 25/10 Sunny
28°19°0%⌄
Wind8 mph NE
Gusts16 mph
UV index7 – High
Precip chance0%
Sunrise07:04
Sunset18:05
Monday 26/10 Sunny
28°18°0%⌄
Wind9 mph SW
Gusts20 mph
UV index7 – High
Precip chance0%
Sunrise07:05
Sunset18:04
Tuesday 27/10 Sunny
27°19°2%⌄
Wind8 mph SW
Gusts15 mph
UV index7 – High
Precip chance2%
Sunrise07:06
Sunset18:03
Wednesday 28/10 Mostly cloudy
26°19°8%⌄
Wind7 mph SW
Gusts19 mph
UV index6 – High
Precip chance8%
Sunrise07:07
Sunset18:02
Thursday 29/10 Rain (climatological)
28°20°4.0 mm⌄
Day≈25–31°
Night≈17–23°
Precip≈2.2 in / October
(climatological)Typical range for these dates · 1991–2020
Friday 30/10 Partly cloudy (climatological)
29°20°20%⌄
Day≈26–32°
Night≈17–23°
Precip≈2.2 in / October
(climatological)Typical range for these dates · 1991–2020
Saturday 31/10 Partly cloudy (climatological)
30°21°20%⌄
Day≈27–33°
Night≈18–24°
Precip≈2.2 in / October
(climatological)Typical range for these dates · 1991–2020
Sunday 1/11 Rain (climatological)
22°14°7.1 mm⌄
Day≈19–25°
Night≈11–17°
Precip≈2.2 in / November
(climatological)Typical range for these dates · 1991–2020
Monday 2/11 Partly cloudy (climatological)
20°13°20%⌄
Day≈17–23°
Night≈10–16°
Precip≈2.2 in / November
(climatological)Typical range for these dates · 1991–2020
Tuesday 3/11 Partly cloudy (climatological)
18°12°20%⌄
Day≈15–21°
Night≈9–15°
Precip≈2.2 in / November
(climatological)Typical range for these dates · 1991–2020
Wednesday 4/11 Rain (climatological)
20°13°5.0 mm⌄
Day≈17–23°
Night≈10–16°
Precip≈2.2 in / November
(climatological)Typical range for these dates · 1991–2020
Thursday 5/11 Partly cloudy (climatological)
21°14°20%⌄
Day≈18–24°
Night≈11–17°
Precip≈2.2 in / November
(climatological)Typical range for these dates · 1991–2020
Friday 6/11 Partly cloudy (climatological)
22°14°20%⌄
Day≈19–25°
Night≈11–17°
Precip≈2.2 in / November
(climatological)Typical range for these dates · 1991–2020
Saturday 7/11 Rain (climatological)
24°16°4.6 mm⌄
Day≈21–27°
Night≈13–19°
Precip≈2.2 in / November
(climatological)Typical range for these dates · 1991–2020
Sunday 8/11 Partly cloudy (climatological)
22°14°20%⌄
Day≈19–25°
Night≈11–17°
Precip≈2.2 in / November
(climatological)Typical range for these dates · 1991–2020
Monday 9/11 Partly cloudy (climatological)
20°13°20%⌄
Day≈17–23°
Night≈10–16°
Precip≈2.2 in / November
(climatological)Typical range for these dates · 1991–2020
Tuesday 10/11 Rain (climatological)
20°13°5.3 mm⌄
Day≈17–23°
Night≈10–16°
Precip≈2.2 in / November
(climatological)Typical range for these dates · 1991–2020
Wednesday 11/11 Partly cloudy (climatological)
20°13°20%⌄
Day≈17–23°
Night≈10–16°
Precip≈2.2 in / November
(climatological)Typical range for these dates · 1991–2020
Thursday 12/11 Partly cloudy (climatological)
22°14°20%⌄
Day≈19–25°
Night≈11–17°
Precip≈2.2 in / November
(climatological)Typical range for these dates · 1991–2020
Friday 13/11 Rain (climatological)
23°15°5.0 mm⌄
Day≈20–26°
Night≈12–18°
Precip≈2.2 in / November
(climatological)Typical range for these dates · 1991–2020
The month ahead · Diamond Bar
Days 1-14 blend the NBM, ECMWF and GFS runs; the rest is the 30-year climate range for these dates.