10-Day Weather Forecast - Diamond Bar, CA

Mostly cloudy in the morning then partly cloudy. Highs in the upper 60s to mid 70s.

Partly cloudy. Lows in the upper 40s to mid 50s.

Sunny. Highs in the mid 70s.

Clear. Lows in the lower to mid 50s.

Sunny. Highs around 80.

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

Mostly cloudy except for patchy low clouds and fog in the morning. Highs in the mid 70s.

Mostly cloudy. A 20 percent chance of rain after midnight. Lows in the lower to mid 50s.

Mostly cloudy. A slight chance of rain in the morning then a chance of rain in the afternoon. Highs in the mid 60s to around 70. Chance of precipitation 40 percent.

Mostly cloudy. A chance of rain in the evening then a slight chance of rain after midnight. Lows around 50. Chance of precipitation 40 percent.

Mostly cloudy. A slight chance of rain in the morning then a chance of rain in the afternoon. Highs in the lower to mid 60s. Chance of precipitation 40 percent.

Partly cloudy with a chance of rain. Chance of precipitation 35%. Low temperature around 46F. Dew point will be around 46F with an average humidity of 86%. Winds will be 2 mph from the E.

Sunny. High temperature around 65F. Dew point will be around 43F with an average humidity of 57%. Winds will be 2 mph from the W.

Clear. Low temperature around 46F. Dew point will be around 42F with an average humidity of 74%. Winds will be 2 mph from the E.

Sunny. High temperature around 67F. Dew point will be around 42F with an average humidity of 48%. Winds will be 3 mph from the W.

Clear. Low temperature around 48F. Dew point will be around 43F with an average humidity of 72%. Winds will be 2 mph from the E.

Partly cloudy. High temperature around 66F. Dew point will be around 43F with an average humidity of 51%. Winds will be 4 mph from the SW.

Mostly clear. Low temperature around 47F. Dew point will be around 45F with an average humidity of 78%. Winds will be 4 mph from the S.