Watertown Weather Forecast

    • 43
    • 71

    Rain Showers Likely

    • 44
    • 51

    Rain

    • 53
    • 72

    Chance Rain Showers

    • 49
    • 67

    Chance Rain Showers

    • 50
    • 66

    Chance Rain Showers

    • 53
    • 68

    Chance Rain Showers

Today 29 May Southeast Middlesex

Partly Sunny, then mostly cloudy with a chance of Showers. Highs in the lower 70s. Northwest Winds around 10 Mph, becoming west. Gusts up to 25 Mph. Chance of rain 50 percent.

Tonight 29 May Southeast Middlesex

Showers likely. Cooler with Lows in the lower 40s. South Winds 5 to 10 Mph, becoming west after midnight. Gusts up to 20 Mph. Chance of rain 70 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Watertown Temperature Statistics

May Temperature

Laurence G Hanscom Field Airport (8.7 miles)

  • Lowest 9 May, 2026

    34 °F

  • Average May

    59.2 °F

  • Highest 19 May, 2026

    95 °F

Climate (2021–Present)

Laurence G Hanscom Field Airport (8.7 miles)

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  • Average Low 2021–2026

    41.3 °F

  • Average 2021–2026

    51.6 °F

  • Average High 2021–2026

    61.6 °F
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