South Arm Weather Forecast

    • 38
    • 50

    Increasing Clouds

    • 36
    • 48

    Mostly Cloudy

    • 39
    • 50

    Partly Sunny

    • 40
    • 52

    Partly Sunny

    • 45
    • 53

    Chance Rain

    • 46
    • 52

    Chance Rain

Today 27 Dec Northern San Joaquin Valley

Partly cloudy. Highs 48 to 53. Southwest Winds up to 10 Mph shifting to the northwest in the afternoon.

Tonight 27 Dec Northern San Joaquin Valley

Mostly cloudy in the evening then clearing. Patchy fog after midnight. Lows 36 to 41. Northwest Winds up to 10 Mph.

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South Arm Temperature Statistics

December Temperature

Sacramento Mather Airport (31.7 miles)

  • Lowest 4 December, 2025

    35.6 °F
  • Average December

    48.7 °F
  • Highest 21 December, 2025

    64.4 °F

Climate (2020–Present)

Sacramento Mather Airport (31.7 miles)

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  • Average Low 2020–2025

    48.7 °F
  • Average 2020–2025

    61.7 °F
  • Average High 2020–2025

    75.3 °F
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