10-Day Weather Forecast - Diamond Bar, CA

Sunny. Highs in the lower to mid 80s.

Clear. Lows in the 50s to around 60.

Sunny. Highs in the mid 80s to around 90. Northeast winds around 15 mph in the morning.

Clear in the evening then partly cloudy. Lows in the 50s to around 60.

Partly cloudy. Highs in the mid to upper 80s.

Mostly cloudy. Lows in the 50s.

Mostly cloudy in the morning then partly cloudy. Highs in the lower to mid 70s.

Partly cloudy. Lows in the lower to mid 50s.

Partly cloudy in the morning then sunny. Highs in the mid 70s.

Mostly clear. Lows in the lower to mid 50s.

Partly cloudy in the morning then sunny. Highs in the mid 70s.

Mostly clear. Lows in the lower to mid 50s.

Partly cloudy. A 20 percent chance of rain in the afternoon. Highs in the lower 70s.

Mostly clear. Low temperature around 52F. Dew point will be around 46F with an average humidity of 70%. Winds will be 6 mph from the S.

Partly cloudy with a chance of rain. Chance of precipitation 40%. High temperature around 62F. Dew point will be around 46F with an average humidity of 61%. Winds will be 8 mph from the S.

Cloudy with a chance of rain. Chance of precipitation 40%. Low temperature around 47F. Dew point will be around 44F with an average humidity of 79%. Winds will be 7 mph from the S.

Cloudy with a chance of rain. Chance of precipitation 40%. High temperature around 58F. Dew point will be around 44F with an average humidity of 67%. Winds will be 7 mph from the S.

Mostly cloudy with a chance of rain. Chance of precipitation 35%. Low temperature around 45F. Dew point will be around 43F with an average humidity of 82%. Winds will be 5 mph from the SE.