Diamond Bar, California | 10-Day Weather Forecasts & Weekend Weather | WeatherBug
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10 Day Forecast
  • Forecast night icon
    Night
    Mostly Clear
    49°
    Sunday 5/5
    Forecast night icon
    49°
    Mostly Clear
    Hourly
    Night Details
    Mostly clear. Lows in the mid 40s to around 50. Southwest winds around 15 mph in the evening.
  • Forecast day icon
    Monday
    Sunny
    70°
    Forecast night icon
    Night
    Mostly Clear
    53°
    Monday 5/6
    Day
    70°
    Sunny
    Forecast day icon
    Night
    53°
    Mostly Clear
    Forecast night icon
    Hourly
    Day Details
    Sunny. Highs in the lower to mid 70s. Southwest winds around 15 mph in the afternoon.
    Night Details
    Mostly clear. Lows in the upper 40s to mid 50s.
  • Forecast day icon
    Tuesday
    Sunny
    71°
    Forecast night icon
    Night
    Mostly Clear
    52°
    Tuesday 5/7
    Day
    71°
    Sunny
    Forecast day icon
    Night
    52°
    Mostly Clear
    Forecast night icon
    Hourly
    Day Details
    Sunny. Highs in the 70s to around 80. Southwest winds around 15 mph in the afternoon.
    Night Details
    Mostly clear. Lows in the mid 50s. Southwest winds around 15 mph in the evening.
  • Forecast day icon
    Wednesday
    Sunny
    74°
    Forecast night icon
    Night
    Mostly Clear
    53°
    Wednesday 5/8
    Day
    74°
    Sunny
    Forecast day icon
    Night
    53°
    Mostly Clear
    Forecast night icon
    Hourly
    Day Details
    Sunny. Highs in the mid 70s to lower 80s.
    Night Details
    Mostly clear. Lows in the mid 50s.
  • Forecast day icon
    Thursday
    Sunny
    73°
    Forecast night icon
    Night
    Mostly Clear
    53°
    Thursday 5/9
    Day
    73°
    Sunny
    Forecast day icon
    Night
    53°
    Mostly Clear
    Forecast night icon
    Hourly
    Day Details
    Sunny. Highs in the mid 70s to lower 80s.
    Night Details
    Mostly clear except for patchy low clouds and fog after midnight. Lows in the mid 50s.
  • Forecast day icon
    Friday
    Partly Cloudy
    77°
    Forecast night icon
    Night
    Mostly Clear
    54°
    Friday 5/10
    Day
    77°
    Partly Cloudy
    Forecast day icon
    Night
    54°
    Mostly Clear
    Forecast night icon
    Hourly
    Day Details
    Low clouds and fog in the morning then sunny. Highs in the mid 70s to lower 80s.
    Night Details
    Mostly clear in the evening then areas of low clouds and fog. Lows in the mid 50s.
  • Forecast day icon
    Saturday
    Partly Cloudy
    83°
    Forecast night icon
    Night
    Partly Cloudy
    54°
    Saturday 5/11
    Day
    83°
    Partly Cloudy
    Forecast day icon
    Night
    54°
    Partly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Low clouds and fog in the morning then sunny. Highs in the mid 70s to lower 80s.
    Night Details
    Mostly clear in the evening then low clouds and fog. Lows in the mid 50s.
  • Forecast day icon
    Sunday
    Partly Cloudy
    74°
    Forecast night icon
    Night
    Clear
    54°
    Sunday 5/12
    Day
    74°
    Partly Cloudy
    Forecast day icon
    Night
    54°
    Clear
    Forecast night icon
    Day Details
    Low clouds and fog in the morning then partly cloudy. Highs in the 70s to around 80.
    Night Details
    Clear. Low temperature around 54F. Dew point will be around 53F with an average humidity of 84%. Winds will be 5 mph from the SW.
  • Forecast day icon
    Monday
    Sunny
    70°
    Forecast night icon
    Night
    Partly Cloudy
    53°
    Monday 5/13
    Day
    70°
    Sunny
    Forecast day icon
    Night
    53°
    Partly Cloudy
    Forecast night icon
    Day Details
    Sunny. High temperature around 70F. Dew point will be around 56F with an average humidity of 74%. Winds will be 7 mph from the SW.
    Night Details
    Partly cloudy. Low temperature around 53F. Dew point will be around 53F with an average humidity of 86%. Winds will be 6 mph from the SW.
  • Forecast day icon
    Tuesday
    Mostly Cloudy
    69°
    Forecast night icon
    Night
    Partly Cloudy
    52°
    Tuesday 5/14
    Day
    69°
    Mostly Cloudy
    Forecast day icon
    Night
    52°
    Partly Cloudy
    Forecast night icon
    Day Details
    Mostly cloudy. High temperature around 69F. Dew point will be around 56F with an average humidity of 75%. Winds will be 8 mph from the SW.
    Night Details
    Partly cloudy. Low temperature around 52F. Dew point will be around 53F with an average humidity of 87%. Winds will be 6 mph from the SW.