Seymour Weather Forecast

    • 27
    • 46

    Chance Rain

    • 28
    • 42

    Partly Sunny

    • 34
    • 45

    Mostly Cloudy

    • 28
    • 46

    Mostly Cloudy

    • 18
    • 37

    Chance Snow

    • 20
    • 32

    Mostly Cloudy

Today 11 Jan Northern New Haven

Mostly cloudy with a slight chance of rain this Morning, then mostly sunny with a chance of snow Showers this afternoon. Highs in the mid 40s. Northwest Winds 5 to 10 Mph. Gusts up to 20 Mph this afternoon. Chance of precipitation 40 percent.

Tonight 11 Jan Northern New Haven

Partly cloudy with a slight chance of snow Showers in the Evening, then mostly clear after midnight. Lows in the mid 20s. West Winds 15 to 20 Mph with Gusts up to 30 Mph. Chance of snow 20 percent.

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Seymour Temperature Statistics

January Temperature

Oxford, Waterbury-Oxford Airport (6.2 miles)

  • Lowest 1 January, 2026

    8.1 °F

  • Average January

    26 °F

  • Highest 8 January, 2026

    43 °F

Climate (2021–Present)

Oxford, Waterbury-Oxford Airport (6.2 miles)

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  • Average Low 2021–2026

    42.7 °F

  • Average 2021–2026

    51.1 °F

  • Average High 2021–2026

    59.5 °F
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