Watertown Weather Forecast

    • 42
    • 57

    Becoming Sunny

    • 54
    • 68

    Mostly Sunny

    • 40
    • 69

    Sunny

    • 34
    • 57

    Mostly Sunny

    • 43
    • 62

    Partly Sunny

    • 45
    • 65

    Chance Rain Showers

Today 28 Oct Southeast Middlesex

Partly sunny. Highs in the mid 50s. Northwest Winds around 5 Mph, becoming southwest.

Tonight 28 Oct Southeast Middlesex

Mostly clear. Not as cool with Lows in the lower 40s. Southwest Winds around 5 Mph.

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Watertown Temperature Statistics

October Temperature

Laurence G Hanscom Field Airport (8.7 miles)

  • Lowest 18 October, 2026

    25 °F

  • Average October

    52.5 °F

  • Highest 2 October, 2026

    82.9 °F

Climate (2021–2026)

Laurence G Hanscom Field Airport (8.7 miles)

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  • Average Low 2021–2026

    41 °F

  • Average 2021–2026

    51.5 °F

  • Average High 2021–2026

    61.6 °F
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