Watertown Weather Forecast

    • 58
    • 82

    Sunny

    • 60
    • 84

    Mostly Sunny

    • 61
    • 83

    Mostly Sunny

    • 63
    • 81

    Partly Sunny

    • 66
    • 83

    Chance Rain Showers

    • 66
    • 83

    Chance Rain Showers

Today 23 Jul Southeast Middlesex

Sunny. Highs in the lower 80s. Northwest Winds around 5 Mph, becoming northeast around 5 Mph in the afternoon.

Tonight 23 Jul Southeast Middlesex

Partly cloudy. Lows in the lower 60s. Northwest Winds around 5 Mph.

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Watertown Temperature Statistics

July Temperature

Laurence G Hanscom Field Airport (8.7 miles)

  • Lowest 20 July, 2026

    51.1 °F

  • Average July

    74.9 °F

  • Highest 2 July, 2026

    98.1 °F

Climate (2021–2026)

Laurence G Hanscom Field Airport (8.7 miles)

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  • Average Low 2021–2026

    41.3 °F

  • Average 2021–2026

    51.7 °F

  • Average High 2021–2026

    61.7 °F
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