Southbury Weather Forecast

    • 21
    • 43

    Gradual Clearing

    • 26
    • 36

    Partly Sunny

    • 30
    • 40

    Rain/Snow

    • 24
    • 40

    Mostly Cloudy

    • 31
    • 42

    Chance Rain

    • 29
    • 47

    Slight Chance Snow

Today 21 Dec Northern New Haven

Mostly sunny. Highs in the lower 40s. West Winds 10 to 15 Mph, becoming northwest this afternoon. Gusts up to 30 Mph.

Tonight 21 Dec Northern New Haven

Mostly clear. Lows in the lower 20s. Northwest Winds 10 to 15 Mph. Gusts up to 30 Mph, decreasing to 20 Mph after midnight.

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Southbury Temperature Statistics

December Temperature

Oxford, Waterbury-Oxford Airport (3.7 miles)

  • Lowest 5 December, 2025

    6.8 °F

  • Average December

    27.9 °F

  • Highest 18 December, 2025

    45 °F

Climate (2020–Present)

Oxford, Waterbury-Oxford Airport (3.7 miles)

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  • Average Low 2020–2025

    42.8 °F

  • Average 2020–2025

    51.1 °F

  • Average High 2020–2025

    59.5 °F
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