Diamond Bar Weather Forecast

    • 52
    • 66

    Rain Likely

    • 47
    • 62

    Chance Rain

    • 47
    • 64

    Partly Sunny

    • 47
    • 68

    Mostly Sunny

    • 48
    • 67

    Chance Rain

    • 47
    • 62

    Rain Likely

Today 10 Feb Los Angeles County San Gabriel Valley

Mostly cloudy. A 20 percent chance of Showers in the afternoon. Highs in the mid 60s. South Winds around 15 Mph in the afternoon.

Tonight 10 Feb Los Angeles County San Gabriel Valley

A chance of rain in the Evening, then rain after midnight. Lows in the lower to mid 50s. South Winds around 15 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Diamond Bar Temperature Statistics

February Temperature

Brackett Field Airport (4.3 miles)

  • Lowest 3 February, 2026

    48.2 °F

  • Average February

    68.8 °F

  • Highest 4 February, 2026

    84.2 °F

Climate (2021–Present)

Brackett Field Airport (4.3 miles)

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  • Average Low 2021–2026

    55.7 °F

  • Average 2021–2026

    67.7 °F

  • Average High 2021–2026

    75.7 °F
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