Countryside Weather Forecast

    • 58
    • 82

    Mostly Sunny

    • 57
    • 72

    Mostly Sunny

    • 54
    • 70

    Mostly Sunny

    • 56
    • 75

    Mostly Sunny

    • 55
    • 77

    Mostly Sunny

    • 55
    • 70

    Partly Sunny

Today 10 Sep East Bay Interior Valleys

Partly cloudy in the morning then becoming sunny. Highs in the upper 90s. West Winds 5 to 15 Mph.

Tonight 10 Sep East Bay Interior Valleys

Mostly clear. Lows in the lower 60s. Southwest Winds 5 to 15 Mph.

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Countryside Temperature Statistics

September Temperature

Concord, Buchanan Field (11.2 miles)

  • Lowest 7 September, 2026

    54.6 °F

  • Average September

    70 °F

  • Highest 8 September, 2026

    93.9 °F

Climate (2021–2026)

Concord, Buchanan Field (11.2 miles)

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  • Average Low 2021–2026

    51 °F

  • Average 2021–2026

    61.6 °F

  • Average High 2021–2026

    74.2 °F
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