Watertown Weather Forecast

    • 63
    • 85

    Increasing Clouds

    • 68
    • 85

    Partly Sunny

    • 73
    • 89

    Slight Chance Rain Showers

    • 72
    • 91

    Chance Rain Showers

    • 71
    • 89

    Chance Rain Showers

    • 71
    • 89

    Mostly Sunny

Today 4 Aug Southeast Middlesex

Sunny. Highs in the mid 80s. West Winds around 5 Mph.

Tonight 4 Aug Southeast Middlesex

Mostly clear in the Evening, then becoming partly cloudy. Lows in the mid 60s. Southwest Winds around 5 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Watertown Temperature Statistics

August Temperature

Laurence G Hanscom Field Airport (8.7 miles)

  • Lowest 1 August, 2026

    63 °F

  • Average August

    75.8 °F

  • Highest 1 August, 2026

    87.1 °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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