South Arm Weather Forecast

    • 46
    • 65

    Decreasing Clouds

    • 43
    • 65

    Decreasing Clouds

    • 45
    • 61

    Mostly Sunny

    • 46
    • 65

    Mostly Sunny

    • 47
    • 66

    Mostly Sunny

    • 49
    • 67

    Partly Sunny

    • 47
    • 66

    Partly Sunny

Today 31 Jan Northern San Joaquin Valley

Widespread fog. Locally dense in the morning. Areas of dense fog. Locally dense early in the afternoon. Mostly cloudy. Highs 61 to 67. Light Winds.

Tonight 31 Jan Northern San Joaquin Valley

Partly cloudy. Patchy fog late in the evening. Widespread fog. Locally dense after midnight. Lows 41 to 47. Light Winds.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

South Arm Temperature Statistics

January Temperature

Sacramento Mather Airport (31.7 miles)

  • Lowest 9 January, 2026

    30.2 °F

  • Average January

    48.6 °F

  • Highest 15 January, 2026

    66.2 °F

Climate (2021–Present)

Sacramento Mather Airport (31.7 miles)

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  • Average Low 2021–2026

    48.7 °F

  • Average 2021–2026

    61.7 °F

  • Average High 2021–2026

    75.3 °F
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