Seymour Weather Forecast

    • 34
    • 54

    Mostly Sunny

    • 45
    • 63

    Chance Rain Showers

    • 37
    • 60

    Sunny

    • 45
    • 59

    Mostly Cloudy

    • 58
    • 72

    Mostly Cloudy

    • 61
    • 83

    Mostly Cloudy

Today 9 Apr Northern New Haven

Sunny. Widespread frost in the morning. Highs in the lower 50s. South Winds 5 to 10 Mph.

Tonight 9 Apr Northern New Haven

Mostly clear. Lows in the mid 30s. South Winds 5 to 10 Mph.

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Seymour Temperature Statistics

April Temperature

Oxford, Waterbury-Oxford Airport (6.2 miles)

  • Lowest 2 April, 2026

    36 °F

  • Average April

    48.7 °F

  • Highest 1 April, 2026

    73 °F

Climate (2021–Present)

Oxford, Waterbury-Oxford Airport (6.2 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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