South Arm Weather Forecast

    • 42
    • 51

    Mostly Cloudy

    • 46
    • 52

    Mostly Cloudy

    • 45
    • 53

    Partly Sunny

    • 48
    • 59

    Mostly Cloudy

    • 53
    • 60

    Chance Rain Showers

    • 48
    • 57

    Chance Rain Showers

Today 12 Dec Northern San Joaquin Valley

Mostly cloudy. Areas of fog. Locally dense until late afternoon. Patchy fog late in the afternoon. Highs 47 to 57. Light Winds.

Tonight 12 Dec Northern San Joaquin Valley

Mostly cloudy. Patchy fog in the evening. Areas of dense fog. Locally dense after midnight. Lows 39 to 45. Light Winds.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

South Arm Temperature Statistics

December Temperature

Sacramento Mather Airport (31.7 miles)

  • Lowest 4 December, 2025

    35.6 °F
  • Average December

    45.7 °F
  • Highest 3 December, 2025

    62.6 °F

Climate (2020–Present)

Sacramento Mather Airport (31.7 miles)

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  • Average Low 2020–2025

    48.6 °F
  • Average 2020–2025

    61.6 °F
  • Average High 2020–2025

    75.3 °F
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