Seymour Weather Forecast

    • 63
    • 82

    Mostly Sunny

    • 66
    • 84

    Mostly Cloudy

    • 66
    • 82

    Rain Showers Likely

    • 63
    • 81

    Rain Showers Likely

    • 63
    • 83

    Chance Rain Showers

    • 66
    • 84

    Chance Thunderstorms

Today 31 Jul Northern New Haven

Patchy fog this morning. Sunny. Highs in the lower 80s. Northwest Winds around 5 Mph.

Tonight 31 Jul Northern New Haven

Mostly clear. Lows in the lower 60s. Southwest Winds around 5 Mph in the Evening, becoming light and variable.

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  • Temperature Real-Time

Seymour Temperature Statistics

July Temperature

Oxford, Waterbury-Oxford Airport (6.2 miles)

  • Lowest 20 July, 2026

    53.1 °F

  • Average July

    71.9 °F

  • Highest 2 July, 2026

    95 °F

Climate (2021–2026)

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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