Mount Diablo State Park Weather Forecast

    • 63
    • 70

    Becoming Sunny

    • 64
    • 72

    Mostly Sunny

    • 66
    • 76

    Mostly Sunny

    • 66
    • 78

    Mostly Sunny

    • 66
    • 79

    Mostly Sunny

    • 64
    • 77

    Mostly Sunny

Today 3 Oct East Bay Interior Valleys

Partly cloudy in the morning then becoming sunny. Highs in the lower 80s. West Winds 5 to 15 Mph.

Tonight 3 Oct East Bay Interior Valleys

Mostly clear in the evening then becoming partly cloudy. Lows in the upper 50s. Southwest Winds 5 to 15 Mph.

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Mount Diablo State Park Temperature Statistics

October Temperature

Concord, Buchanan Field (10.6 miles)

  • Lowest

  • Average October

  • Highest

Climate (2010–Present)

Concord, Buchanan Field (10.6 miles)

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  • Average Low 2010–Present

    51.7 °F
  • Average 2010–Present

    62.3 °F
  • Average High 2010–Present

    75.5 °F
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