Winchester Weather Forecast

    • 9
    • 38

    Becoming Sunny

    • 19
    • 25

    Partly Sunny

    • 23
    • 34

    Chance Snow Showers

    • 17
    • 39

    Mostly Cloudy

    • 10
    • 26

    Mostly Sunny

    • 21
    • 30

    Chance Snow Showers

Today 4 Dec Southeast Middlesex

Mostly cloudy with a slight chance of snow Showers in the Morning, then partly sunny with a chance of snow Showers in the afternoon. Highs in the upper 30s. West Winds 15 to 20 Mph with Gusts up to 30 Mph. Chance of snow 30 percent.

Tonight 4 Dec Southeast Middlesex

Mostly clear. Much Colder with Lows around 9 above. Northwest Winds 15 to 20 Mph with Gusts up to 35 Mph.

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Winchester Temperature Statistics

December Temperature

Laurence G Hanscom Field Airport (8.1 miles)

  • Lowest 1 December, 2025

    18 °F

  • Average December

    34.3 °F

  • Highest 1 December, 2025

    42.1 °F

Climate (2020–Present)

Laurence G Hanscom Field Airport (8.1 miles)

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  • Average Low 2020–2025

    41.6 °F

  • Average 2020–2025

    51.9 °F

  • Average High 2020–2025

    61.9 °F
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