Diablo Shadows Weather Forecast

    • 45
    • 66

    Becoming Sunny

    • 46
    • 70

    Partly Sunny

    • 46
    • 68

    Mostly Cloudy

    • 45
    • 64

    Partly Sunny

    • 45
    • 62

    Chance Rain

    • 46
    • 64

    Mostly Sunny

Today 27 Oct East Bay Interior Valleys

Partly cloudy in the morning then becoming sunny. Highs in the mid 60s. West Winds 5 to 10 Mph.

Tonight 27 Oct East Bay Interior Valleys

Mostly clear except patchy fog after midnight. Lows in the upper 40s. West Winds up to 5 Mph.

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Diablo Shadows Temperature Statistics

October Temperature

Concord, Buchanan Field (5 miles)

  • Lowest 13 October, 2026

    46.7 °F

  • Average October

    69 °F

  • Highest 6 October, 2026

    99.6 °F

Climate (2021–2026)

Concord, Buchanan Field (5 miles)

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  • Average Low 2021–2026

    51.1 °F

  • Average 2021–2026

    61.7 °F

  • Average High 2021–2026

    74.3 °F
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