Seymour Weather Forecast

    • 37
    • 59

    Increasing Clouds

    • 33
    • 58

    Mostly Sunny

    • 36
    • 55

    Mostly Sunny

    • 40
    • 55

    Slight Chance Rain Showers

    • 42
    • 55

    Chance Rain Showers

    • 43
    • 58

    Chance Rain Showers

    • 40
    • 57

    Chance Rain Showers

Today 25 Oct Northern New Haven

Mostly sunny. Highs in the upper 50s. Northwest Winds 5 to 10 Mph.

Tonight 25 Oct Northern New Haven

Mostly cloudy. Lows in the upper 30s. North Winds around 5 Mph.

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Seymour Temperature Statistics

October Temperature

Oxford, Waterbury-Oxford Airport (6.2 miles)

  • Lowest 10 October, 2025

    30 °F

  • Average October

    55.1 °F

  • Highest 5 October, 2025

    82 °F

Climate (2020–Present)

Oxford, Waterbury-Oxford Airport (6.2 miles)

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  • Average Low 2020–2025

    42.9 °F

  • Average 2020–2025

    51.2 °F

  • Average High 2020–2025

    59.7 °F
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