Middlesex Fells Reservation Weather Forecast

    • 61
    • 88

    Severe Tstms

    • 53
    • 67

    Rain Showers

    • 52
    • 74

    Mostly Sunny

    • 55
    • 71

    Mostly Cloudy

    • 53
    • 70

    Slight Chance Rain Showers

    • 52
    • 78

    Mostly Sunny

    • 49
    • 67

    Mostly Sunny

Today 6 Sep Southeast Middlesex

Partly sunny with isolated Showers and Thunderstorms. Some Thunderstorms may be severe with damaging Winds, frequent Lightning, and heavy rainfall. Highs in the upper 80s. Southwest Winds around 15 Mph with Gusts up to 30 Mph. Chance of rain 20 percent.

Tonight 6 Sep Southeast Middlesex

Showers likely with a chance of Thunderstorms this Evening, then Showers likely after midnight. Lows in the lower 60s. West Winds 10 to 15 Mph with Gusts up to 25 Mph, becoming north around 5 Mph after midnight. Chance of rain 70 percent.

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Middlesex Fells Reservation Temperature Statistics

September Temperature

Boston, Logan International Airport (8.1 miles)

  • Lowest 4 September, 2025

    59 °F

  • Average September

    67 °F

  • Highest 4 September, 2025

    78.1 °F

Climate (2020–Present)

Boston, Logan International Airport (8.1 miles)

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  • Average Low 2020–2025

    46.9 °F

  • Average 2020–2025

    53.8 °F

  • Average High 2020–2025

    61.1 °F
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