Diamond Bar, California | 10-Day Weather Forecasts & Weekend Weather | WeatherBug
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10 Day Forecast
  • Forecast night icon
    Night
    Drizzle
    55°
    Sunday 5/19
    Forecast night icon
    55°
    Drizzle
    Hourly
    Night Details
    Partly cloudy in the evening then cloudy. Patchy drizzle after midnight. Lows in the upper 40s and 50s.
  • Forecast day icon
    Monday
    Drizzle
    64°
    Forecast night icon
    Night
    Partly Cloudy
    54°
    Monday 5/20
    Day
    64°
    Drizzle
    Forecast day icon
    Night
    54°
    Partly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Cloudy in the morning then sunny. Patchy drizzle in the morning. Highs in the mid 60s to around 70.
    Night Details
    Partly cloudy in the evening then cloudy. Lows in the upper 40s to mid 50s.
  • Forecast day icon
    Tuesday
    Cloudy
    68°
    Forecast night icon
    Night
    Mostly Clear
    54°
    Tuesday 5/21
    Day
    68°
    Cloudy
    Forecast day icon
    Night
    54°
    Mostly Clear
    Forecast night icon
    Hourly
    Day Details
    Cloudy in the morning then sunny. Highs in the lower to mid 70s.
    Night Details
    Mostly clear in the evening then cloudy. Lows in the mid 50s.
  • Forecast day icon
    Wednesday
    Cloudy
    69°
    Forecast night icon
    Night
    Partly Cloudy
    53°
    Wednesday 5/22
    Day
    69°
    Cloudy
    Forecast day icon
    Night
    53°
    Partly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Cloudy in the morning then sunny. Highs in the lower to mid 70s.
    Night Details
    Mostly clear in the evening then low clouds and fog. Lows in the mid 50s.
  • Forecast day icon
    Thursday
    Mostly Cloudy
    64°
    Forecast night icon
    Night
    Partly Cloudy
    53°
    Thursday 5/23
    Day
    64°
    Mostly Cloudy
    Forecast day icon
    Night
    53°
    Partly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Low clouds and fog in the morning then mostly cloudy. Highs in the mid 60s to around 70.
    Night Details
    Partly cloudy in the evening then cloudy. Lows in the lower to mid 50s.
  • Forecast day icon
    Friday
    Partly Cloudy
    63°
    Forecast night icon
    Night
    Partly Cloudy
    50°
    Friday 5/24
    Day
    63°
    Partly Cloudy
    Forecast day icon
    Night
    50°
    Partly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Cloudy in the morning then partly cloudy. Highs in the mid 60s to around 70.
    Night Details
    Partly cloudy in the evening then cloudy. Lows in the lower to mid 50s.
  • Forecast day icon
    Saturday
    Partly Cloudy
    61°
    Forecast night icon
    Night
    Partly Cloudy
    51°
    Saturday 5/25
    Day
    61°
    Partly Cloudy
    Forecast day icon
    Night
    51°
    Partly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Cloudy in the morning then partly cloudy. Highs in the mid 60s to around 70.
    Night Details
    Partly cloudy in the evening then low clouds and fog. Lows in the lower to mid 50s.
  • Forecast day icon
    Sunday
    Partly Cloudy
    65°
    Forecast night icon
    Night
    Clear
    52°
    Sunday 5/26
    Day
    65°
    Partly Cloudy
    Forecast day icon
    Night
    52°
    Clear
    Forecast night icon
    Day Details
    Low clouds and fog in the morning then partly cloudy. Highs around 70.
    Night Details
    Clear. Low temperature around 52F. Dew point will be around 51F with an average humidity of 88%. Winds will be 5 mph from the SW.
  • Forecast day icon
    Monday
    Sunny
    70°
    Forecast night icon
    Night
    Clear
    55°
    Monday 5/27
    Day
    70°
    Sunny
    Forecast day icon
    Night
    55°
    Clear
    Forecast night icon
    Day Details
    Sunny. High temperature around 70F. Dew point will be around 55F with an average humidity of 72%. Winds will be 6 mph from the SW.
    Night Details
    Clear. Low temperature around 55F. Dew point will be around 53F with an average humidity of 81%. Winds will be 4 mph from the SW.
  • Forecast day icon
    Tuesday
    Sunny
    74°
    Forecast night icon
    Night
    Clear
    57°
    Tuesday 5/28
    Day
    74°
    Sunny
    Forecast day icon
    Night
    57°
    Clear
    Forecast night icon
    Day Details
    Sunny. High temperature around 74F. Dew point will be around 56F with an average humidity of 65%. Winds will be 7 mph from the SW.
    Night Details
    Clear. Low temperature around 57F. Dew point will be around 53F with an average humidity of 74%. Winds will be 4 mph from the SW.