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
91°
Fri, Oct 16
Coldest night
58°
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
90° 72°
2% precip chance
Sat 24 – Sun 25 Oct
83° 65°
0% precip chance
31 Oct – 1 Nov
85° 58°
typical range
Sat 7 – Sun 8 Nov
76° 57°
typical range
30 days — Diamond Bar
14 forecast + 16 climatology
Thu · Today Sunny
88°67°0%⌄
Wind15 mph NE
Gusts28 mph
UV index6 – High
Precip chance0%
Sunrise06:56
Sunset18:17
Fri · Tomorrow Sunny
91°74°0%⌄
Wind19 mph NE
Gusts34 mph
UV index6 – High
Precip chance0%
Sunrise06:57
Sunset18:16
Saturday 17/10 Sunny
90°73°2%⌄
Wind9 mph E
Gusts20 mph
UV index6 – Moderate
Precip chance2%
Sunrise06:58
Sunset18:15
Sunday 18/10 Sunny
86°72°0%⌄
Wind11 mph SW
Gusts20 mph
UV index6 – Moderate
Precip chance0%
Sunrise06:58
Sunset18:13
Monday 19/10 Sunny
83°69°1%⌄
Wind11 mph SW
Gusts19 mph
UV index6 – Moderate
Precip chance1%
Sunrise06:59
Sunset18:12
Tuesday 20/10 Showers
68°62°1.1 mm⌄
Wind10 mph SW
Gusts21 mph
UV index4 – Moderate
Precip chance57%
Sunrise07:00
Sunset18:11
Wednesday 21/10 Showers
67°58°23.8 mm⌄
Wind8 mph SW
Gusts15 mph
UV index4 – Moderate
Precip chance77%
Sunrise07:01
Sunset18:10
Thursday 22/10 Sunny
69°60°0.6 mm⌄
Wind10 mph SW
Gusts16 mph
UV index5 – Moderate
Precip chance36%
Sunrise07:02
Sunset18:09
Friday 23/10 Sunny
75°61°2%⌄
Wind6 mph W
Gusts17 mph
UV index6 – High
Precip chance2%
Sunrise07:02
Sunset18:08
Saturday 24/10 Sunny
83°65°0%⌄
Wind9 mph NE
Gusts17 mph
UV index7 – High
Precip chance0%
Sunrise07:03
Sunset18:06
Sunday 25/10 Sunny
82°66°0%⌄
Wind8 mph NE
Gusts16 mph
UV index7 – High
Precip chance0%
Sunrise07:04
Sunset18:05
Monday 26/10 Sunny
82°65°0%⌄
Wind9 mph SW
Gusts20 mph
UV index7 – High
Precip chance0%
Sunrise07:05
Sunset18:04
Tuesday 27/10 Sunny
81°65°2%⌄
Wind8 mph SW
Gusts15 mph
UV index7 – High
Precip chance2%
Sunrise07:06
Sunset18:03
Wednesday 28/10 Mostly cloudy
78°67°8%⌄
Wind7 mph SW
Gusts19 mph
UV index6 – High
Precip chance8%
Sunrise07:07
Sunset18:02
Thursday 29/10 Rain (climatological)
83°67°4.0 mm⌄
Day≈77–88°
Night≈62–73°
Precip≈2.2 in / October
(climatological)Typical range for these dates · 1991–2020
Friday 30/10 Partly cloudy (climatological)
84°68°20%⌄
Day≈78–89°
Night≈63–73°
Precip≈2.2 in / October
(climatological)Typical range for these dates · 1991–2020
Saturday 31/10 Partly cloudy (climatological)
85°69°20%⌄
Day≈80–91°
Night≈64–74°
Precip≈2.2 in / October
(climatological)Typical range for these dates · 1991–2020
Sunday 1/11 Rain (climatological)
72°58°7.1 mm⌄
Day≈66–77°
Night≈52–63°
Precip≈2.2 in / November
(climatological)Typical range for these dates · 1991–2020
Monday 2/11 Partly cloudy (climatological)
68°56°20%⌄
Day≈63–74°
Night≈50–61°
Precip≈2.2 in / November
(climatological)Typical range for these dates · 1991–2020
Tuesday 3/11 Partly cloudy (climatological)
64°53°20%⌄
Day≈58–69°
Night≈47–58°
Precip≈2.2 in / November
(climatological)Typical range for these dates · 1991–2020
Wednesday 4/11 Rain (climatological)
68°55°5.0 mm⌄
Day≈62–73°
Night≈50–61°
Precip≈2.2 in / November
(climatological)Typical range for these dates · 1991–2020
Thursday 5/11 Partly cloudy (climatological)
70°56°20%⌄
Day≈64–75°
Night≈51–62°
Precip≈2.2 in / November
(climatological)Typical range for these dates · 1991–2020
Friday 6/11 Partly cloudy (climatological)
71°57°20%⌄
Day≈65–76°
Night≈52–63°
Precip≈2.2 in / November
(climatological)Typical range for these dates · 1991–2020
Saturday 7/11 Rain (climatological)
76°60°4.6 mm⌄
Day≈70–81°
Night≈55–65°
Precip≈2.2 in / November
(climatological)Typical range for these dates · 1991–2020
Sunday 8/11 Partly cloudy (climatological)
71°57°20%⌄
Day≈66–76°
Night≈52–63°
Precip≈2.2 in / November
(climatological)Typical range for these dates · 1991–2020
Monday 9/11 Partly cloudy (climatological)
68°56°20%⌄
Day≈63–74°
Night≈50–61°
Precip≈2.2 in / November
(climatological)Typical range for these dates · 1991–2020
Tuesday 10/11 Rain (climatological)
68°55°5.3 mm⌄
Day≈62–73°
Night≈50–61°
Precip≈2.2 in / November
(climatological)Typical range for these dates · 1991–2020
Wednesday 11/11 Partly cloudy (climatological)
67°55°20%⌄
Day≈62–73°
Night≈50–60°
Precip≈2.2 in / November
(climatological)Typical range for these dates · 1991–2020
Thursday 12/11 Partly cloudy (climatological)
71°57°20%⌄
Day≈66–77°
Night≈52–63°
Precip≈2.2 in / November
(climatological)Typical range for these dates · 1991–2020
Friday 13/11 Rain (climatological)
74°59°5.0 mm⌄
Day≈69–80°
Night≈54–65°
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.