Walnut Weather Forecast

    • 63
    • 89

    Sunny

    • 64
    • 89

    Partly Sunny

    • 65
    • 91

    Mostly Cloudy

    • 65
    • 90

    Sunny

    • 67
    • 95

    Sunny

    • 69
    • 100

    Hot

Today 2 Aug Los Angeles County San Gabriel Valley

Mostly cloudy in the morning then sunny. Highs in the mid 80s to around 90.

Tonight 2 Aug Los Angeles County San Gabriel Valley

Clear in the evening then mostly cloudy. Lows in the upper 50s to mid 60s.

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Walnut Temperature Statistics

August Temperature

Brackett Field Airport (6.8 miles)

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  • Average August

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Climate (2020–Present)

Brackett Field Airport (6.8 miles)

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  • Average Low 2020–2025

    55.7 °F

  • Average 2020–2025

    67.8 °F

  • Average High 2020–2025

    75.7 °F
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