10-Day Weather Forecast - Diamond Bar, CA

Cloudy in the morning then sunny. Highs in the mid 80s to around 90.

Mostly clear. Lows in the upper 50s to mid 60s.

Low clouds and fog in the morning then sunny. Highs in the lower to mid 80s.

Mostly clear. Lows in the upper 50s to mid 60s.

Low clouds and fog in the morning then sunny. Highs in the upper 70s to mid 80s.

Mostly clear in the evening then areas of low clouds and fog. Lows around 60.

Areas of low clouds and fog in the morning then sunny. Highs in the lower to mid 80s.

Mostly clear in the evening then areas of low clouds and fog. Lows in the upper 50s to mid 60s.

Areas of low clouds and fog in the morning then sunny. Highs in the mid to upper 80s.

Mostly clear in the evening then areas of low clouds and fog. Lows in the lower to mid 60s.

Areas of low clouds and fog in the morning then sunny. Highs in the mid 80s to around 90.

Mostly clear in the evening then areas of low clouds and fog. Lows in the lower to mid 60s.

Areas of low clouds and fog in the morning then sunny. Highs in the upper 80s to mid 90s.

Clear. Low temperature around 69F. Dew point will be around 60F with an average humidity of 63%. Winds will be 5 mph from the SW.

Sunny. High temperature around 94F. Dew point will be around 64F with an average humidity of 46%. Winds will be 8 mph from the SW.

Clear. Low temperature around 70F. Dew point will be around 61F with an average humidity of 60%. Winds will be 5 mph from the SW.

Sunny. High temperature around 93F. Dew point will be around 64F with an average humidity of 47%. Winds will be 8 mph from the SW.

Clear. Low temperature around 69F. Dew point will be around 61F with an average humidity of 61%. Winds will be 6 mph from the SW.