Danbury Weather Forecast

    • 48
    • 72

    Rain Showers

    • 48
    • 78

    Mostly Sunny

    • 48
    • 79

    Mostly Sunny

    • 50
    • 81

    Mostly Sunny

    • 51
    • 83

    Partly Sunny

    • 53
    • 82

    Partly Sunny

    • 47
    • 81

    Mostly Sunny

Today 13 Sep Merrimack

Partly sunny with isolated Showers. Highs in the lower 70s. Light and variable Winds. Chance of rain 20 percent.

Tonight 13 Sep Merrimack

Partly cloudy with isolated Showers. Patchy fog after midnight. Lows in the lower 50s. Light and variable Winds. Chance of rain 20 percent.

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Danbury Temperature Statistics

September Temperature

Plymouth Municipal Airport (18 miles)

  • Lowest 9 September, 2025

    34.3 °F

  • Average September

    59.9 °F

  • Highest 2 September, 2025

    81.9 °F

Climate (2020–Present)

Plymouth Municipal Airport (18 miles)

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  • Average Low 2020–2025

    36.7 °F

  • Average 2020–2025

    46.7 °F

  • Average High 2020–2025

    57.2 °F
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