Diamond Bar Weather Forecast

    • 37
    • 58

    Patchy Fog

    • 38
    • 62

    Mostly Sunny

    • 40
    • 61

    Mostly Sunny

    • 45
    • 67

    Breezy

    • 43
    • 66

    Partly Sunny

    • 47
    • 67

    Mostly Sunny

    • 47
    • 69

    Mostly Sunny

Today 17 Jan Ventura County Beaches

Low Clouds and fog in the morning then sunny. Highs in the mid 50s to around 60.

Tonight 17 Jan Ventura County Beaches

Clear in the evening then partly cloudy. Patchy frost after midnight. Lows in the 30s to lower 40s.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Diamond Bar Temperature Statistics

January Temperature

Point Mugu, Naval Air Warfare Center (3.1 miles)

  • Lowest 1 January, 2025

    39.7 °F

  • Average January

    58.6 °F

  • Highest 9 January, 2025

    80.7 °F

Climate (2020–Present)

Point Mugu, Naval Air Warfare Center (3.1 miles)

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  • Average Low 2020–2025

    52.3 °F

  • Average 2020–2025

    60.3 °F

  • Average High 2020–2025

    68.7 °F
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