Seymour Weather Forecast

    • 63
    • 82

    Chance Thunderstorms

    • 65
    • 81

    Rain Showers Likely

    • 63
    • 82

    Rain Showers

    • 63
    • 79

    Rain Showers Likely

    • 62
    • 80

    Chance Rain Showers

    • 59
    • 79

    Chance Rain Showers

Today 30 Aug Northern New Haven

Partly sunny. A slight chance of Showers and Thunderstorms this afternoon. Highs around 80. Southwest Winds 5 to 10 Mph. Gusts up to 20 Mph this afternoon. Chance of rain 20 percent.

Tonight 30 Aug Northern New Haven

Mostly cloudy. A chance of Showers with a slight chance of Thunderstorms in the Evening, then a chance of Showers after midnight. Lows in the lower 60s. West Winds around 5 Mph. Chance of rain 50 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Seymour Temperature Statistics

August Temperature

Oxford, Waterbury-Oxford Airport (6.2 miles)

  • Lowest 24 August, 2026

    55.9 °F

  • Average August

    71.1 °F

  • Highest 6 August, 2026

    88 °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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