South Chelmsford Weather Forecast

    • 30
    • 44

    Rain Likely

    • 19
    • 35

    Partly Sunny

    • 18
    • 32

    Mostly Sunny

    • 21
    • 34

    Slight Chance Snow

    • 13
    • 32

    Slight Chance Snow

    • 14
    • 26

    Partly Sunny

Today 10 Dec Central Middlesex County

Cloudy. Rain likely this afternoon. Not as cool with Highs in the mid 40s. Southwest Winds 10 to 15 Mph with Gusts up to 30 Mph. Chance of rain 70 percent.

Tonight 10 Dec Central Middlesex County

Cloudy. Rain Likely, mainly in the evening. Lows around 30. Southwest Winds 10 to 15 Mph with Gusts up to 25 Mph. Chance of rain 70 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

South Chelmsford Temperature Statistics

December Temperature

Laurence G Hanscom Field Airport (8.1 miles)

  • Lowest 5 December, 2025

    8.1 °F

  • Average December

    27.8 °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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