Black Diamond Mines Regional Preserve Weather Forecast

    • 54
    • 82

    Mostly Sunny

    • 58
    • 91

    Mostly Sunny

    • 56
    • 84

    Mostly Sunny

    • 54
    • 76

    Mostly Sunny

    • 55
    • 75

    Mostly Sunny

    • 55
    • 79

    Mostly Sunny

    • 56
    • 82

    Mostly Sunny

Today 10 May East Bay Interior Valleys

Sunny. Highs in the lower 80s. West Winds 5 to 15 Mph.

Tonight 10 May East Bay Interior Valleys

Mostly clear in the evening then becoming partly cloudy. Lows in the lower 50s. West Winds 5 to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Black Diamond Mines Regional Preserve Temperature Statistics

May Temperature

Concord, Buchanan Field (9.9 miles)

  • Lowest 8 May, 2026

    52 °F

  • Average May

    62.7 °F

  • Highest 1 May, 2026

    78.7 °F

Climate (2021–Present)

Concord, Buchanan Field (9.9 miles)

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  • Average Low 2021–2026

    51 °F

  • Average 2021–2026

    61.4 °F

  • Average High 2021–2026

    74.3 °F
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