Watertown Weather Forecast

    • 75
    • 94

    Increasing Clouds

    • 74
    • 90

    Rain Showers Likely

    • 62
    • 84

    Mostly Sunny

    • 68
    • 84

    Chance Rain Showers

    • 64
    • 81

    Chance Thunderstorms

    • 62
    • 81

    Mostly Sunny

    • 65
    • 82

    Partly Sunny

Today 16 Jul Southeast Middlesex

Sunny, hot. Near steady temperature around 90. South Winds around 5 Mph. Heat index Values up to 100.

Tonight 16 Jul Southeast Middlesex

Mostly clear this Evening, then becoming mostly cloudy. Patchy fog after midnight. Lows in the mid 70s. South Winds around 5 Mph.

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Watertown Temperature Statistics

July Temperature

Laurence G Hanscom Field Airport (8.7 miles)

  • Lowest 4 July, 2025

    59 °F

  • Average July

    76.8 °F

  • Highest 6 July, 2025

    93 °F

Climate (2020–Present)

Laurence G Hanscom Field Airport (8.7 miles)

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  • Average Low 2020–2025

    41.8 °F

  • Average 2020–2025

    52 °F

  • Average High 2020–2025

    62 °F
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