Watertown Weather Forecast

    • 54
    • 79

    Mostly Sunny

    • 63
    • 82

    Mostly Sunny

    • 64
    • 83

    Rain Showers Likely

    • 63
    • 79

    Rain Showers Likely

    • 65
    • 81

    Chance Rain Showers

    • 66
    • 83

    Slight Chance Thunderstorms

Today 26 Jul Southeast Middlesex

Sunny. Highs in the upper 70s. East Winds 5 to 10 Mph.

Tonight 26 Jul Southeast Middlesex

Mostly clear. Lows in the mid 50s. Light and variable Winds.

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  • Temperature Real-Time

Watertown Temperature Statistics

July Temperature

Laurence G Hanscom Field Airport (8.7 miles)

  • Lowest 20 July, 2026

    51.1 °F

  • Average July

    74.3 °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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