Squannacook Brook State Forest Weather Forecast

    • 57
    • 82

    Becoming Sunny

    • 44
    • 78

    Mostly Sunny

    • 41
    • 70

    Mostly Sunny

    • 48
    • 73

    Mostly Sunny

    • 55
    • 77

    Mostly Sunny

    • 59
    • 83

    Partly Sunny

Today 18 Sep Northwest Middlesex County

Partly sunny. A slight chance of Showers in the morning. Patchy fog in the morning. Highs in the lower 80s. Light and variable Winds, becoming southwest around 5 Mph in the afternoon. Chance of rain 20 percent.

Tonight 18 Sep Northwest Middlesex County

Mostly cloudy with a 40 percent chance of Showers. Not as cool. Near steady temperature in the mid 50s. Light and variable Winds.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Squannacook Brook State Forest Temperature Statistics

September Temperature

Fitchburg, Fitchburg Municipal Airport (7.5 miles)

  • Lowest 11 September, 2025

    44.1 °F

  • Average September

    64 °F

  • Highest 6 September, 2025

    84 °F

Climate (2020–Present)

Fitchburg, Fitchburg Municipal Airport (7.5 miles)

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

  • Average Low 2020–2025

    41.8 °F

  • Average 2020–2025

    51.9 °F

  • Average High 2020–2025

    61.8 °F
Get WillyWeather+ to remove ads