Hercules Weather Forecast

    • 58
    • 76

    Mostly Sunny

    • 58
    • 74

    Increasing Clouds

    • 57
    • 68

    Mostly Sunny

    • 58
    • 75

    Mostly Sunny

    • 59
    • 77

    Mostly Sunny

    • 60
    • 79

    Mostly Sunny

    • 58
    • 73

    Mostly Sunny

Today 3 Aug East Bay Interior Valleys

Sunny. Highs around 101. West Winds 5 to 10 Mph.

Tonight 3 Aug East Bay Interior Valleys

Clear. Lows in the lower 60s. West Winds 5 to 10 Mph.

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Hercules Temperature Statistics

August Temperature

Concord, Buchanan Field (13 miles)

  • Lowest 1 August, 2026

    61 °F

  • Average August

    77 °F

  • Highest 1 August, 2026

    98.1 °F

Climate (2021–2026)

Concord, Buchanan Field (13 miles)

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  • Average Low 2021–2026

    51 °F

  • Average 2021–2026

    61.5 °F

  • Average High 2021–2026

    74.3 °F
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