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.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Diamond Bar Temperature Statistics

May Temperature

Brackett Field Airport (4.3 miles)

  • Lowest 10 May, 2022

    46.4 °F
  • Average May

    68.9 °F
  • Highest 14 May, 2022

    93.2 °F

Climate (2010–Present)

Brackett Field Airport (4.3 miles)

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  • Average Low 2010–Present

    54.8 °F
  • Average 2010–Present

    67.5 °F
  • Average High 2010–Present

    75.4 °F
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