Groton Weather Forecast

    • 56
    • 68

    Decreasing Clouds

    • 45
    • 72

    Mostly Sunny

    • 48
    • 64

    Partly Sunny

    • 41
    • 69

    Partly Sunny

    • 39
    • 55

    Slight Chance Rain Showers

    • 47
    • 59

    Chance Rain Showers

Today 21 Oct Northwest Middlesex County

Mostly cloudy. Areas of fog in the morning. Visibility one quarter mile or less at Times in the morning. Highs in the upper 60s. East Winds around 5 Mph, becoming south in the afternoon.

Tonight 21 Oct Northwest Middlesex County

Mostly cloudy. Lows in the mid 50s. Southwest Winds 5 to 10 Mph.

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Groton Temperature Statistics

October Temperature

Fitchburg, Fitchburg Municipal Airport (9.9 miles)

  • Lowest 18 October, 2020

    32 °F
  • Average October

    54 °F
  • Highest 10 October, 2020

    77 °F

Climate (2010–Present)

Fitchburg, Fitchburg Municipal Airport (9.9 miles)

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  • Average Low 2010–Present

    42.3 °F
  • Average 2010–Present

    51.7 °F
  • Average High 2010–Present

    61 °F
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