Diamond Bar, California | 10-Day Weather Forecasts & Weekend Weather | WeatherBug
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10 Day Forecast
  • Forecast night icon
    Night
    Partly Cloudy
    50°
    Thursday 4/18
    Forecast night icon
    50°
    Partly Cloudy
    Hourly
    Night Details
    Partly cloudy. Low temperature around 50F. Dew point will be around 51F with an average humidity of 75%. Winds will be 5 mph from the SW.
  • Forecast day icon
    Friday
    Partly Cloudy
    68°
    Forecast night icon
    Night
    Partly Cloudy
    49°
    Friday 4/19
    Day
    68°
    Partly Cloudy
    Forecast day icon
    Night
    49°
    Partly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Low clouds and fog in the morning then partly cloudy. Highs in the upper 60s to mid 70s.
    Night Details
    Partly cloudy in the evening then low clouds and fog. Lows in the mid 50s.
  • Forecast day icon
    Saturday
    Partly Cloudy
    71°
    Forecast night icon
    Night
    Partly Cloudy
    52°
    Saturday 4/20
    Day
    71°
    Partly Cloudy
    Forecast day icon
    Night
    52°
    Partly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Low clouds and fog in the morning then partly cloudy. Highs in the 70s.
    Night Details
    Partly cloudy. Lows in the mid 50s.
  • Forecast day icon
    Sunday
    Partly Cloudy
    78°
    Forecast night icon
    Night
    Mostly Clear
    53°
    Sunday 4/21
    Day
    78°
    Partly Cloudy
    Forecast day icon
    Night
    53°
    Mostly Clear
    Forecast night icon
    Hourly
    Day Details
    Areas of low clouds and fog in the morning then sunny. Highs in the lower to mid 80s.
    Night Details
    Mostly clear. Lows in the mid to upper 50s.
  • Forecast day icon
    Monday
    Partly Cloudy
    74°
    Forecast night icon
    Night
    Partly Cloudy
    51°
    Monday 4/22
    Day
    74°
    Partly Cloudy
    Forecast day icon
    Night
    51°
    Partly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Low clouds and fog in the morning and night otherwise clear. Highs in the mid 70s to around 80. Lows in the mid to upper 50s.
    Night Details
    Low clouds and fog in the morning and night otherwise clear. Highs in the mid 70s to around 80. Lows in the mid to upper 50s.
  • Forecast day icon
    Tuesday
    Partly Cloudy
    68°
    Forecast night icon
    Night
    Partly Cloudy
    48°
    Tuesday 4/23
    Day
    68°
    Partly Cloudy
    Forecast day icon
    Night
    48°
    Partly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Low clouds and fog in the morning then partly cloudy. Highs around 70.
    Night Details
    Mostly clear in the evening then low clouds and fog. Lows in the upper 40s to mid 50s.
  • Forecast day icon
    Wednesday
    Partly Cloudy
    67°
    Forecast night icon
    Night
    Partly Cloudy
    49°
    Wednesday 4/24
    Day
    67°
    Partly Cloudy
    Forecast day icon
    Night
    49°
    Partly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Low clouds and fog in the morning and night otherwise partly cloudy. Highs in the mid 60s to around 70. Lows in the upper 40s to mid 50s.
    Night Details
    Low clouds and fog in the morning and night otherwise partly cloudy. Highs in the mid 60s to around 70. Lows in the upper 40s to mid 50s.
  • Forecast day icon
    Thursday
    Mostly Cloudy
    65°
    Forecast night icon
    Night
    Mostly Cloudy
    46°
    Thursday 4/25
    Day
    65°
    Mostly Cloudy
    Forecast day icon
    Night
    46°
    Mostly Cloudy
    Forecast night icon
    Day Details
    Low clouds and fog in the morning then mostly cloudy. Highs in the lower to mid 60s.
    Night Details
    Mostly cloudy. Low temperature around 46F. Dew point will be around 48F with an average humidity of 87%. Winds will be 7 mph from the SW.
  • Forecast day icon
    Friday
    Cloudy
    59°
    Forecast night icon
    Night
    Cloudy
    45°
    Friday 4/26
    Day
    59°
    Cloudy
    Forecast day icon
    Night
    45°
    Cloudy
    Forecast night icon
    Day Details
    Cloudy. High temperature around 59F. Dew point will be around 49F with an average humidity of 78%. Winds will be 8 mph from the SW.
    Night Details
    Cloudy. Low temperature around 45F. Dew point will be around 47F with an average humidity of 92%. Winds will be 6 mph from the SW.
  • Forecast day icon
    Saturday
    Cloudy
    62°
    Forecast night icon
    Night
    Mostly Cloudy
    46°
    Saturday 4/27
    Day
    62°
    Cloudy
    Forecast day icon
    Night
    46°
    Mostly Cloudy
    Forecast night icon
    Day Details
    Cloudy. High temperature around 62F. Dew point will be around 49F with an average humidity of 73%. Winds will be 7 mph from the SW.
    Night Details
    Mostly cloudy. Low temperature around 46F. Dew point will be around 47F with an average humidity of 87%. Winds will be 5 mph from the SW.
  • Forecast day icon
    Sunday
    Mostly Sunny
    66°
    Forecast night icon
    Night
    Clear
    49°
    Sunday 4/28
    Day
    66°
    Mostly Sunny
    Forecast day icon
    Night
    49°
    Clear
    Forecast night icon
    Day Details
    Mostly sunny. High temperature around 66F. Dew point will be around 51F with an average humidity of 70%. Winds will be 6 mph from the SW.
    Night Details
    Clear. Low temperature around 49F. Dew point will be around 48F with an average humidity of 82%. Winds will be 4 mph from the SW.