Danbury Weather Forecast

    • 55
    • 70

    Rain Showers

    • 41
    • 65

    Mostly Sunny

    • 49
    • 69

    Mostly Sunny

    • 56
    • 78

    Partly Sunny

    • 56
    • 76

    Chance Rain Showers

    • 49
    • 72

    Slight Chance Rain Showers

Today 13 Sep Merrimack

Cloudy. Patchy fog in the morning. Showers, mainly in the morning. Highs in the upper 60s. Light and variable Winds. Chance of rain 90 percent.

Tonight 13 Sep Merrimack

Mostly cloudy. A chance of Showers after midnight. Lows in the upper 50s. Light and variable Winds, becoming west around 10 Mph with Gusts up to 20 Mph after midnight. Chance of rain 50 percent.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Danbury Temperature Statistics

September Temperature

Plymouth Municipal Airport (18 miles)

  • Lowest 9 September, 2026

    46.9 °F

  • Average September

    63.2 °F

  • Highest 10 September, 2026

    80.1 °F

Climate (2021–2026)

Plymouth Municipal Airport (18 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2021–2026

    36.2 °F

  • Average 2021–2026

    46.4 °F

  • Average High 2021–2026

    57 °F
Get WillyWeather+ to remove ads