Diamond Bar Weather Forecast
- 56
- 76
Increasing Clouds
- 57
- 81
Partly Sunny
- 57
- 79
Patchy Fog
- 56
- 76
Patchy Fog
- 55
- 79
Patchy Fog
- 58
- 80
Partly Sunny
- 59
- 85
Sunny
Today 17 May Los Angeles County San Gabriel Valley
Low Clouds and fog in the morning then sunny. Highs in the mid to upper 70s.
Diamond Bar Temperature Statistics
May Temperature
Brackett Field Airport (4.3 miles)
Lowest 10 May, 2022
46.4 °FAverage May
68.9 °FHighest 14 May, 2022
93.2 °F
Climate (2010–Present)
Brackett Field Airport (4.3 miles)
Average Low 2010–Present
54.8 °FAverage 2010–Present
67.5 °FAverage High 2010–Present
75.4 °F