Diamond Bar Weather Forecast

    • 57
    • 84

    Increasing Clouds

    • 56
    • 80

    Mostly Sunny

    • 58
    • 82

    Mostly Sunny

    • 57
    • 82

    Mostly Sunny

    • 56
    • 80

    Mostly Sunny

    • 55
    • 77

    Partly Sunny

Today 1 Jun Los Angeles County San Gabriel Valley

Sunny except for patchy low Clouds and fog in the morning. Highs in the upper 70s to mid 80s.

Tonight 1 Jun Los Angeles County San Gabriel Valley

Mostly clear in the evening then Areas of low Clouds and fog. Lows in the mid 50s to around 60.

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Diamond Bar Temperature Statistics

June Temperature

Brackett Field Airport (4.3 miles)

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  • Average June

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Climate (2021–Present)

Brackett Field Airport (4.3 miles)

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  • Average Low 2021–2026

    56 °F

  • Average 2021–2026

    68 °F

  • Average High 2021–2026

    76 °F
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