South Arm Weather Forecast

    • 42
    • 56

    Decreasing Clouds

    • 42
    • 56

    Mostly Sunny

    • 44
    • 58

    Mostly Sunny

    • 46
    • 59

    Mostly Sunny

    • 46
    • 62

    Mostly Sunny

    • 45
    • 61

    Mostly Sunny

Today 11 Jan Northern San Joaquin Valley

Mostly cloudy in the morning then becoming partly cloudy. Areas of fog and patchy frost in the morning. Highs around 56. Light Winds.

Tonight 11 Jan Northern San Joaquin Valley

Partly cloudy. Patchy fog after midnight. Lows 36 to 42. Light Winds.

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South Arm Temperature Statistics

January Temperature

Sacramento Mather Airport (31.7 miles)

  • Lowest 9 January, 2026

    30.2 °F

  • Average January

    52.3 °F

  • Highest 1 January, 2026

    62.6 °F

Climate (2021–Present)

Sacramento Mather Airport (31.7 miles)

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  • Average Low 2021–2026

    48.8 °F

  • Average 2021–2026

    61.7 °F

  • Average High 2021–2026

    75.3 °F
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