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°
Sat, Oct 17
Coldest night
57°
Wed, Oct 21
Days with precip
1 / 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
91° 74°
0% precip chance
Sat 24 – Sun 25 Oct
87° 63°
0% precip chance
31 Oct – 1 Nov
84° 56°
typical range
Sat 7 – Sun 8 Nov
73° 56°
typical range
30 days — Diamond Bar
14 forecast + 16 climatology
Wed · Today Sunny
81°64°0%⌄
Wind9 mph SW
Gusts20 mph
UV index6 – High
Precip chance0%
Sunrise06:55
Sunset18:18
Thu · Tomorrow Sunny
89°68°0%⌄
Wind15 mph NE
Gusts28 mph
UV index6 – High
Precip chance0%
Sunrise06:56
Sunset18:17
Friday 16/10 Sunny
91°74°1%⌄
Wind16 mph NE
Gusts33 mph
UV index6 – High
Precip chance1%
Sunrise06:57
Sunset18:16
Saturday 17/10 Sunny
91°74°0%⌄
Wind9 mph E
Gusts19 mph
UV index6 – High
Precip chance0%
Sunrise06:58
Sunset18:15
Sunday 18/10 Sunny
88°74°0%⌄
Wind11 mph SW
Gusts20 mph
UV index8 – Very high
Precip chance0%
Sunrise06:58
Sunset18:13
Monday 19/10 Sunny
85°72°1%⌄
Wind10 mph SW
Gusts17 mph
UV index7 – High
Precip chance1%
Sunrise06:59
Sunset18:12
Tuesday 20/10 Sunny
74°64°3%⌄
Wind11 mph SW
Gusts22 mph
UV index6 – High
Precip chance3%
Sunrise07:00
Sunset18:11
Wednesday 21/10 Showers
69°57°10.0 mm⌄
Wind9 mph SW
Gusts20 mph
UV index5 – Moderate
Precip chance74%
Sunrise07:01
Sunset18:10
Thursday 22/10 Showers
67°57°0.3 mm⌄
Wind10 mph SW
Gusts17 mph
UV index5 – Moderate
Precip chance36%
Sunrise07:02
Sunset18:09
Friday 23/10 Sunny
72°60°5%⌄
Wind8 mph SW
Gusts19 mph
UV index6 – High
Precip chance5%
Sunrise07:02
Sunset18:08
Saturday 24/10 Sunny
85°63°0%⌄
Wind5 mph N
Gusts9 mph
UV index7 – High
Precip chance0%
Sunrise07:03
Sunset18:06
Sunday 25/10 Sunny
87°67°0%⌄
Wind4 mph NW
Gusts7 mph
UV index8 – Very high
Precip chance0%
Sunrise07:04
Sunset18:05
Monday 26/10 Sunny
88°70°0%⌄
Wind7 mph W
Gusts16 mph
UV index8 – Very high
Precip chance0%
Sunrise07:05
Sunset18:04
Tuesday 27/10 Sunny
85°70°0%⌄
Wind9 mph SW
Gusts18 mph
UV index7 – High
Precip chance0%
Sunrise07:06
Sunset18:03
Wednesday 28/10 Light rain (climatological)
85°68°1.6 mm⌄
Day≈79–90°
Night≈63–74°
Precip≈0.9 in / October
(climatological)Typical range for these dates · 1991–2020
Thursday 29/10 Partly cloudy (climatological)
86°69°20%⌄
Day≈80–91°
Night≈63–74°
Precip≈0.9 in / October
(climatological)Typical range for these dates · 1991–2020
Friday 30/10 Partly cloudy (climatological)
87°70°20%⌄
Day≈82–93°
Night≈64–75°
Precip≈0.9 in / October
(climatological)Typical range for these dates · 1991–2020
Saturday 31/10 Rain (climatological)
84°68°2.9 mm⌄
Day≈79–89°
Night≈62–73°
Precip≈0.9 in / October
(climatological)Typical range for these dates · 1991–2020
Sunday 1/11 Partly cloudy (climatological)
70°56°20%⌄
Day≈65–76°
Night≈51–62°
Precip≈0.9 in / November
(climatological)Typical range for these dates · 1991–2020
Monday 2/11 Partly cloudy (climatological)
66°54°20%⌄
Day≈60–71°
Night≈48–59°
Precip≈0.9 in / November
(climatological)Typical range for these dates · 1991–2020
Tuesday 3/11 Light rain (climatological)
70°56°2.0 mm⌄
Day≈64–75°
Night≈51–62°
Precip≈0.9 in / November
(climatological)Typical range for these dates · 1991–2020
Wednesday 4/11 Partly cloudy (climatological)
72°57°20%⌄
Day≈66–77°
Night≈52–63°
Precip≈0.9 in / November
(climatological)Typical range for these dates · 1991–2020
Thursday 5/11 Partly cloudy (climatological)
73°58°20%⌄
Day≈67–78°
Night≈53–63°
Precip≈0.9 in / November
(climatological)Typical range for these dates · 1991–2020
Friday 6/11 Light rain (climatological)
78°61°1.8 mm⌄
Day≈72–83°
Night≈55–66°
Precip≈0.9 in / November
(climatological)Typical range for these dates · 1991–2020
Saturday 7/11 Partly cloudy (climatological)
73°58°20%⌄
Day≈68–78°
Night≈53–64°
Precip≈0.9 in / November
(climatological)Typical range for these dates · 1991–2020
Sunday 8/11 Partly cloudy (climatological)
70°56°20%⌄
Day≈65–76°
Night≈51–62°
Precip≈0.9 in / November
(climatological)Typical range for these dates · 1991–2020
Monday 9/11 Rain (climatological)
70°56°2.1 mm⌄
Day≈64–75°
Night≈51–61°
Precip≈0.9 in / November
(climatological)Typical range for these dates · 1991–2020
Tuesday 10/11 Partly cloudy (climatological)
69°56°20%⌄
Day≈64–74°
Night≈50–61°
Precip≈0.9 in / November
(climatological)Typical range for these dates · 1991–2020
Wednesday 11/11 Partly cloudy (climatological)
73°58°20%⌄
Day≈68–79°
Night≈53–64°
Precip≈0.9 in / November
(climatological)Typical range for these dates · 1991–2020
Thursday 12/11 Light rain (climatological)
76°60°2.0 mm⌄
Day≈71–82°
Night≈55–65°
Precip≈0.9 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.