Southbury Weather Forecast

    • 46
    • 66

    Becoming Sunny

    • 48
    • 66

    Partly Sunny

    • 51
    • 66

    Chance Rain Showers

    • 51
    • 64

    Chance Rain Showers

    • 51
    • 65

    Chance Rain Showers

    • 51
    • 68

    Slight Chance Rain Showers

Today 23 Sep Northern New Haven

Mostly sunny. Highs in the mid 60s. Northeast Winds 10 to 15 Mph with Gusts up to 25 Mph.

Tonight 23 Sep Northern New Haven

Mostly clear. Lows in the mid 40s. Northeast Winds 10 to 15 Mph with Gusts up to 25 Mph.

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Southbury Temperature Statistics

September Temperature

Oxford, Waterbury-Oxford Airport (3.7 miles)

  • Lowest 15 September, 2026

    46 °F

  • Average September

    65.1 °F

  • Highest 10 September, 2026

    82 °F

Climate (2021–2026)

Oxford, Waterbury-Oxford Airport (3.7 miles)

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  • Average Low 2021–2026

    42.6 °F

  • Average 2021–2026

    51 °F

  • Average High 2021–2026

    59.4 °F
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