Seymour Weather Forecast

    • 60
    • 70

    Mostly Cloudy

    • 63
    • 71

    Chance Rain Showers

    • 68
    • 82

    Chance Thunderstorms

    • 66
    • 92

    Chance Thunderstorms

    • 60
    • 84

    Partly Sunny

    • 65
    • 84

    Partly Sunny

Today 16 Jun Northern New Haven

Mostly cloudy in the Morning, then becoming partly sunny. Highs around 70. East Winds 5 to 10 Mph.

Tonight 16 Jun Northern New Haven

Mostly cloudy. Lows in the upper 50s. Southeast Winds 5 to 10 Mph, becoming east after midnight.

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Seymour Temperature Statistics

June Temperature

Oxford, Waterbury-Oxford Airport (6.2 miles)

  • Lowest 2 June, 2025

    44.1 °F

  • Average June

    65.6 °F

  • Highest 5 June, 2025

    88 °F

Climate (2020–Present)

Oxford, Waterbury-Oxford Airport (6.2 miles)

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  • Average Low 2020–2025

    43 °F

  • Average 2020–2025

    51.3 °F

  • Average High 2020–2025

    59.7 °F
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