10-Day Weather Forecast - Diamond Bar, CA

Sunny. Highs in the upper 70s to mid 80s.

Clear. Lows in the mid 50s to lower 60s.

Sunny. Highs in the mid 90s.

Mostly clear. Lows in the lower to mid 60s.

Sunny in the morning then partly cloudy. Highs 95 to 100.

Mostly cloudy. Lows in the 60s.

Mostly cloudy in the morning then partly cloudy. Highs in the lower to mid 90s.

Clear. Lows in the upper 50s to mid 60s.

Sunny. Highs in the lower to mid 90s.

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

Sunny. Highs in the lower to mid 90s.

Clear. Lows in the 60s to around 70.

Sunny. Highs 94 to 100.

Clear. Low temperature around 62F. Dew point will be around 52F with an average humidity of 58%. Winds will be 3 mph from the SW.

Sunny. High temperature around 87F. Dew point will be around 51F with an average humidity of 41%. Winds will be 5 mph from the SW.

Clear. Low temperature around 59F. Dew point will be around 52F with an average humidity of 60%. Winds will be 4 mph from the SW.

Sunny. High temperature around 84F. Dew point will be around 50F with an average humidity of 42%. Winds will be 6 mph from the SW.

Clear. Low temperature around 59F. Dew point will be around 52F with an average humidity of 61%. Winds will be 4 mph from the SW.

Sunny. High temperature around 83F. Dew point will be around 51F with an average humidity of 44%. Winds will be 5 mph from the SW.

Clear. Low temperature around 58F. Dew point will be around 53F with an average humidity of 65%. Winds will be 4 mph from the SW.