Current Conditions

Diamond Bar, California

52°F11°C
Clear

Clear. Temperatures will hold near 52°F.Clear. Temperatures will hold near 11°C.

Wind

NE 4 mph6 km/h

Humidity

82%

Cloud Cover

9%

As of Monday, November 2, 2026 at 1:08 AM PST

Today's Outlook

Day

Mostly clear. Temperatures will range from 55°F to 69°F.Mostly clear. Temperatures will range from 13°C to 21°C.

Night

Mostly clear. Temperatures will range from 51°F to 69°F.Mostly clear. Temperatures will range from 11°C to 21°C.

7-Day Forecast

DayConditionHigh (°F)Low (°F)Precip (mm)Cloud Cover (%)Wind (mph)
Mostly clearHigh 69°F21°CLow 50°F10°CPrecip 0 in0 mm—Cloud 30%Wind NNE 4 mph6 km/hMostly clear. Temperatures will range from 55°F to 69°F.Mostly clear. Temperatures will range from 13°C to 21°C.Mostly clear. Temperatures will range from 51°F to 69°F.Mostly clear. Temperatures will range from 11°C to 21°C.
Partly cloudyHigh 69°F20°CLow 51°F10°CPrecip 0 in0 mm—Cloud 32%Wind SW 4 mph7 km/hPartly cloudy. Temperatures will range from 56°F to 69°F.Partly cloudy. Temperatures will range from 13°C to 21°C.Mostly clear. Temperatures will range from 53°F to 69°F.Mostly clear. Temperatures will range from 12°C to 21°C.
Mostly clearHigh 68°F20°CLow 53°F12°CPrecip 0 in0 mm—Cloud 20%Wind S 4 mph7 km/hMostly clear. Temperatures will range from 57°F to 68°F.Mostly clear. Temperatures will range from 14°C to 20°C.Mostly clear. Temperatures will range from 53°F to 68°F.Mostly clear. Temperatures will range from 12°C to 20°C.
Mostly clearHigh 72°F22°CLow 53°F12°CPrecip 0 in0 mm—Cloud 26%Wind ENE 5 mph8 km/hMostly clear. Temperatures will range from 58°F to 72°F.Mostly clear. Temperatures will range from 14°C to 22°C.Mostly clear. Temperatures will range from 54°F to 72°F.Mostly clear. Temperatures will range from 12°C to 22°C.
ClearHigh 75°F24°CLow 54°F12°CPrecip 0 in0 mm—Cloud 5%Wind NE 5 mph8 km/hClear. Temperatures will range from 60°F to 75°F.Clear. Temperatures will range from 16°C to 24°C.Clear. Temperatures will range from 56°F to 75°F.Clear. Temperatures will range from 13°C to 24°C.
ClearHigh 78°F25°CLow 56°F13°CPrecip 0 in0 mm—Cloud 2%Wind NE 6 mph9 km/hClear. Very dry, with temperatures ranging from 62°F to 78°F.Clear. Very dry, with temperatures ranging from 17°C to 26°C.Clear. Very dry, with temperatures ranging from 56°F to 78°F.Clear. Very dry, with temperatures ranging from 13°C to 26°C.
Mostly clearHigh 78°F26°CLow 56°F14°CPrecip 0 in0 mm—Cloud 17%Wind NE 5 mph9 km/hMostly clear. Very dry, with temperatures ranging from 63°F to 78°F.Mostly clear. Very dry, with temperatures ranging from 17°C to 26°C.Mostly clear. Very dry, with temperatures ranging from 57°F to 78°F.Mostly clear. Very dry, with temperatures ranging from 14°C to 26°C.

15-Day Forecast

Day High Low Precip Cloud Cover Condition Wind
MondayNov 269°F21°C50°F10°C0 in0 mm· —30%Mostly clearNNE 4 mph6 km/h
TuesdayNov 369°F20°C51°F10°C0 in0 mm· —32%Partly cloudySW 4 mph7 km/h
WednesdayNov 468°F20°C53°F12°C0 in0 mm· —20%Mostly clearS 4 mph7 km/h
ThursdayNov 572°F22°C53°F12°C0 in0 mm· —26%Mostly clearENE 5 mph8 km/h
FridayNov 675°F24°C54°F12°C0 in0 mm· —5%ClearNE 5 mph8 km/h
SaturdayNov 778°F25°C56°F13°C0 in0 mm· —2%ClearNE 6 mph9 km/h
SundayNov 878°F26°C56°F14°C0 in0 mm· —17%Mostly clearNE 5 mph9 km/h
MondayNov 975°F24°C57°F14°C0 in0 mm· —47%Partly cloudyESE 5 mph8 km/h
TuesdayNov 1071°F22°C57°F14°C0.01 in0.3 mm· 7%36%Mostly clearS 5 mph8 km/h
WednesdayNov 1167°F19°C57°F14°C0.24 in6.2 mm· 26%44%Low chance of showersSW 5 mph9 km/h
ThursdayNov 1266°F19°C55°F13°C0.16 in4.1 mm· 19%40%Low chance of showersSSW 5 mph8 km/h
FridayNov 1366°F19°C55°F13°C0.13 in3.3 mm· 15%46%Low chance of showersSSW 5 mph8 km/h
SaturdayNov 1463°F17°C54°F12°C0.23 in5.8 mm· 25%57%Low chance of showersS 5 mph8 km/h
SundayNov 1561°F16°C53°F12°C0.22 in5.7 mm· 29%54%Low chance of showersS 5 mph8 km/h
MondayNov 1663°F17°C51°F11°C0.14 in3.6 mm· 18%45%Low chance of showersSE 4 mph7 km/h

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Coordinates: 34.0286°N, 117.8103°W·Elevation: 212m·Timezone: America/Los_Angeles·Population: 56,897