Watertown Weather Forecast

    • 74
    • 93

    Slight Chance Thunderstorms

    • 74
    • 91

    Chance Thunderstorms

    • 69
    • 90

    Mostly Sunny

    • 72
    • 90

    Slight Chance Rain Showers

    • 69
    • 89

    Chance Rain Showers

    • 67
    • 86

    Slight Chance Rain Showers

Today 7 Aug Southeast Middlesex

Sunny, hot with Highs in the lower 90s. West Winds around 5 Mph.

Tonight 7 Aug Southeast Middlesex

Partly cloudy in the Evening, then partly cloudy with a slight chance of Showers and Thunderstorms after midnight. Humid with Lows in the mid 70s. West Winds around 5 Mph. Chance of rain 20 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Watertown Temperature Statistics

August Temperature

Laurence G Hanscom Field Airport (8.7 miles)

  • Lowest 4 August, 2026

    60.1 °F

  • Average August

    74.7 °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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