Weather in Diamond Bar, California
Fog and sun in daily rhythm. Day 58 of spring. Read this microseason across nine climate regions →
Diamond Bar, CA
Saturday, May 16 at 11:59 PM
69
°
Partly Cloudy
Feels like
65°
Humidity
61%
Wind
13 mph
Sunrise
5:48 AM
Sunset
7:46 PM
Diamond Bar, CA
Hour by hour · 24h
74°
4p
73°
5p
71°
6p
68°
7p
64°
8p
62°
9p
60°
10p
59°
11p
57°
12a
56°
1a
55°
2a
54°
3a
57°
4a
58°
5a
58°
6a
58°
7a
59°
8a
59°
9a
60°
10a
62°
11a
65°
12p
66°
1p
70°
2p
72°
3p
Diamond Bar, CA
7-day forecast
- TodayMay 16Overcast—74°55°
- SundayMay 17Overcast—74°55°
- MondayMay 18Overcast—80°49°
- TuesdayMay 19Overcast—85°60°
- WednesdayMay 20Overcast—82°62°
- ThursdayMay 21Overcast—80°61°
- FridayMay 22Clear—82°62°
Diamond Bar, CA
Next 24 hours · Mild now
Diamond Bar, CA
Anemometer · 24h winds · from true
From · True
WSW
237° · backing 14°
Direction
WSW
237°
Sustained
13
mph
Gust
16
mph
Peak 24h
16
avg 6
Beaufort · 4 · MOD BRZ
0
CALM
<1
1
LIGHT AIR
1–3
2
LIGHT BRZ
4–7
3
GENTLE BRZ
8–12
4
MOD BRZ
13–18
5
FRESH BRZ
19–24
6
STRONG BRZ
25–31
7
NEAR GALE
32–38
24h · sust vs gust · mph
−24h−18h−12h−6hnow
Diamond Bar, CA
Air quality
57
AQI
Moderate
- PM 2.5
- 15.3 μg/m³
- PM 10
- 23.9 μg/m³
- NO₂
- 3.9 μg/m³
- Ozone
- 122.0 μg/m³
- UV Index
- 3.5 Moderate
Diamond Bar, CA
Almanac · Saturday, May 16
Flowers blooming in late autumn, a sure sign of a bad winter coming.
Civil dawn
12:22 PM
Sunrise
5:48 AM
Daylight
13h 58m
Sunset
7:46 PM
Civil dusk
3:15 AM
Planting note
Direct sow okra, melons, and southern peas. Thin carrot rows.
Diamond Bar, CA
The moon
New Moon
0% illuminated
- Moonrise
- 12:18 PM
- Moonset
- 2:03 AM
- In sign
- ♉︎ Taurus
Diamond Bar, CA
Microseason · 28 of 72
May 16–20
Fog and sun in daily rhythm
weather
Diamond Bar at a glance
- Today vs. normal: 9°F below the seasonal normal for this latitude
- Last frost: March 11 (climatological average for this latitude)
- Microseason: 28 of 72, May 16–20
- Planting window: Direct sow okra, melons, and southern peas. Thin carrot rows.
Right now in the garden
Peak growing season
As of May 16, the growing season is at its peak — frost is months away. Continue succession-planting beans and summer squash. Start fall brassicas (broccoli, cabbage, kale) from seed indoors for transplanting in late summer.