Hercules Weather Forecast

    • 50
    • 58

    Rain Likely

    • 46
    • 57

    Mostly Cloudy

    • 48
    • 59

    Partly Sunny

    • 48
    • 59

    Mostly Cloudy

    • 50
    • 60

    Mostly Cloudy

    • 50
    • 60

    Slight Chance Rain

Today 27 Jan East Bay Interior Valleys

Mostly cloudy. A chance of rain in the afternoon. Highs in the lower 60s. East Winds around 5 Mph. Becoming northwest in the afternoon.

Tonight 27 Jan East Bay Interior Valleys

Mostly cloudy. A chance of rain. Patchy fog after midnight. Lows in the mid 40s. Southwest Winds around 5 Mph in the evening. Becoming light.

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Hercules Temperature Statistics

January Temperature

Concord, Buchanan Field (13 miles)

  • Lowest 10 January, 2026

    33.7 °F

  • Average January

    50.6 °F

  • Highest 15 January, 2026

    68.6 °F

Climate (2021–Present)

Concord, Buchanan Field (13 miles)

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  • Average Low 2021–2026

    50.9 °F

  • Average 2021–2026

    61.3 °F

  • Average High 2021–2026

    74.2 °F
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