South Chelmsford Weather Forecast

    • 55
    • 79

    Mostly Sunny

    • 66
    • 84

    Mostly Sunny

    • 74
    • 92

    Mostly Sunny

    • 71
    • 97

    Chance Rain Showers

    • 67
    • 87

    Chance Rain Showers

    • 67
    • 85

    Slight Chance Rain Showers

Today 22 Jul Central Middlesex County

Sunny. Highs in the upper 70s. Northwest Winds around 5 Mph.

Tonight 22 Jul Central Middlesex County

Mostly clear. Lows in the mid 50s. South Winds around 5 Mph, becoming southwest after midnight.

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South Chelmsford Temperature Statistics

July Temperature

Laurence G Hanscom Field Airport (8.1 miles)

  • Lowest 19 July, 2025

    53.1 °F

  • Average July

    77.2 °F

  • Highest 16 July, 2025

    94.6 °F

Climate (2020–Present)

Laurence G Hanscom Field Airport (8.1 miles)

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  • Average Low 2020–2025

    41.8 °F

  • Average 2020–2025

    52 °F

  • Average High 2020–2025

    62.1 °F
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