Mount Diablo State Park Weather Forecast

    • 73
    • 85

    Sunny

    • 71
    • 87

    Mostly Sunny

    • 61
    • 80

    Partly Sunny

    • 51
    • 76

    Mostly Sunny

    • 53
    • 70

    Partly Sunny

    • 50
    • 70

    Mostly Sunny

Today 19 Mar East Bay Hills

Sunny. Highs in the upper 80s. North Winds around 5 Mph.

Tonight 19 Mar East Bay Hills

Clear. Lows in the mid 60s. West Winds around 5 Mph.

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Mount Diablo State Park Temperature Statistics

March Temperature

Concord, Buchanan Field (10.6 miles)

  • Lowest 5 March, 2026

    40.6 °F

  • Average March

    61.3 °F

  • Highest 16 March, 2026

    82.9 °F

Climate (2021–Present)

Concord, Buchanan Field (10.6 miles)

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  • Average Low 2021–2026

    50.9 °F

  • Average 2021–2026

    61.3 °F

  • Average High 2021–2026

    74.3 °F
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