Mount Diablo State Park Weather Forecast

    • 44
    • 55

    Increasing Clouds

    • 46
    • 51

    Chance Rain

    • 49
    • 53

    Mostly Cloudy

    • 51
    • 62

    Mostly Sunny

    • 50
    • 66

    Mostly Sunny

    • 50
    • 65

    Mostly Sunny

Today 3 May East Bay Hills

Mostly cloudy late in the morning then becoming sunny. Highs in the mid 60s. Southwest Winds 10 to 15 Mph.

Tonight 3 May East Bay Hills

Partly cloudy in the evening then becoming mostly cloudy. Lows around 50. Southwest Winds 10 to 15 Mph with Gusts to around 30 Mph.

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Mount Diablo State Park Temperature Statistics

May Temperature

Concord, Buchanan Field (10.6 miles)

  • Lowest

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  • Average May

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Climate (2021–Present)

Concord, Buchanan Field (10.6 miles)

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  • Average Low 2021–2026

    51 °F

  • Average 2021–2026

    61.5 °F

  • Average High 2021–2026

    74.4 °F
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