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As of 02:22 PDT

Weather in Diamond Bar, CA

71°Current weather

Diamond Bar, Sunday, 9 August, 02:22

Clear. Feels like 71°. High 100°, low 70°.

Pressure29.85 inHg
Wind2.8 mph SW
Humidity73%
Visibility6.2 mi
Dew point61°

10-day forecast for Diamond Bar, CA: 69° to 100°, with precipitation expected on 0 days. The table below breaks each day into morning, afternoon, evening and overnight.

100°
Best day: Sunday, August 9
79°
Worst day: Saturday, August 15

Tap any day below to see morning, afternoon, evening and overnight.

Mon, 1097° / 71°0Partly cloudy
MorningOvercast78°feels 78°
AfternoonPartly cloudy97°feels 96°
EveningClear82°feels 82°
OvernightClear73°feels 73°
97 °Partly cloudy

Diamond Bar, Monday, 10 August

Partly cloudy. High 97°, low 71°.

Pressure29.91 inHg
Wind8.1 mph SW
Humidity32%
Visibility6.2 mi
Dew point57°
Tue, 1192° / 74°0Clear
MorningOvercast77°feels 76°
AfternoonClear91°feels 89°
EveningClear83°feels 82°
OvernightClear76°feels 76°
92 °Clear

Diamond Bar, Tuesday, 11 August

Clear. High 92°, low 74°.

Pressure29.94 inHg
Wind8 mph SW
Humidity32%
Visibility6.2 mi
Dew point54°
Wed, 1288° / 73°0Partly cloudy
MorningOvercast75°feels 74°
AfternoonOvercast88°feels 86°
EveningOvercast78°feels 78°
OvernightMostly clear75°feels 75°
88 °Partly cloudy

Diamond Bar, Wednesday, 12 August

Partly cloudy. High 88°, low 73°.

Pressure29.88 inHg
Wind8.4 mph SW
Humidity32%
Visibility6.2 mi
Dew point53°
Thu, 1384° / 71°0Mostly clear
MorningMostly clear73°feels 73°
AfternoonMostly clear80°feels 81°
EveningMostly clear80°feels 80°
OvernightPartly cloudy71°feels 71°
84 °Mostly clear

Diamond Bar, Thursday, 13 August

Mostly clear. High 84°, low 71°.

Pressure29.91 inHg
Wind10 mph SW
Humidity47%
Visibility—
Dew point57°
Fri, 1484° / 69°0Overcast
MorningOvercast72°feels 72°
AfternoonOvercast79°feels 79°
EveningOvercast81°feels 81°
OvernightOvercast76°feels 75°
84 °Overcast

Diamond Bar, Friday, 14 August

Overcast. High 84°, low 69°.

Pressure29.97 inHg
Wind8.7 mph SW
Humidity48%
Visibility—
Dew point56°
Sat, 1579° / 71°0Light rain
MorningLight rain74°feels 74°
AfternoonLight rain76°feels 76°
EveningLight rain78°feels 78°
OvernightLight rain73°feels 73°
79 °Light rain

Diamond Bar, Saturday, 15 August

Light rain. High 79°, low 71°.

Pressure30.00 inHg
Wind7.4 mph SW
Humidity50%
Visibility—
Dew point55°
Sun, 1687° / 71°0Overcast
MorningOvercast74°feels 74°
AfternoonOvercast82°feels 82°
EveningOvercast83°feels 82°
OvernightOvercast75°feels 74°
87 °Overcast

Diamond Bar, Sunday, 16 August

Overcast. High 87°, low 71°.

Pressure30.06 inHg
Wind12.1 mph W
Humidity45%
Visibility—
Dew point56°
Mon, 1789° / 72°0Overcast
MorningOvercast74°feels 74°
AfternoonOvercast82°feels 82°
EveningOvercast85°feels 83°
OvernightOvercast75°feels 75°
89 °Overcast

Diamond Bar, Monday, 17 August

Overcast. High 89°, low 72°.

Pressure30.06 inHg
Wind11 mph W
Humidity40%
Visibility—
Dew point54°
Tue, 1890° / 72°0Overcast
MorningOvercast75°feels 75°
AfternoonOvercast83°feels 82°
EveningOvercast85°feels 83°
OvernightOvercast76°feels 76°
90 °Overcast

Diamond Bar, Tuesday, 18 August

Overcast. High 90°, low 72°.

Pressure29.94 inHg
Wind9.8 mph SW
Humidity39%
Visibility—
Dew point54°

About this forecast

How reliable is a 10-day forecast?

The first 3–5 days are the most reliable, typically within 2–4°. From day six to ten the models show the trend: the direction of change is right more often than the exact numbers.

What does the time-of-day table show?

Temperature in Diamond Bar, CA around 8am, 2pm, 8pm and 2am each day — handy for planning a walk, a drive or work outdoors.

How is the best day chosen?

We weigh the daytime high against precipitation: a warm, dry day scores highest.