Penrose Weather Forecast

    • 54
    • 85

    Mostly Sunny

    • 55
    • 82

    Increasing Clouds

    • 52
    • 76

    Mostly Sunny

    • 56
    • 84

    Sunny

    • 59
    • 91

    Sunny

    • 59
    • 91

    Sunny

    • 58
    • 88

    Mostly Sunny

Today 25 Sep East Bay Interior Valleys

Sunny. Highs in the upper 80s.

Tonight 25 Sep East Bay Interior Valleys

Mostly clear. Lows in the lower 50s. Southwest Winds 5 to 15 Mph.

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Penrose Temperature Statistics

September Temperature

Livermore, Livermore Municipal Airport (18.6 miles)

  • Lowest 5 September, 2026

    50.6 °F

  • Average September

    69.6 °F

  • Highest 9 September, 2026

    104.6 °F

Climate (2021–2026)

Livermore, Livermore Municipal Airport (18.6 miles)

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  • Average Low 2021–2026

    49 °F

  • Average 2021–2026

    61 °F

  • Average High 2021–2026

    74 °F
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