Watertown Weather Forecast

    • 51
    • 72

    Rain Showers Likely

    • 43
    • 65

    Partly Sunny

    • 46
    • 61

    Partly Sunny

    • 49
    • 64

    Chance Rain Showers

    • 51
    • 73

    Rain Showers Likely

    • 46
    • 64

    Rain Showers Likely

Today 6 May Southeast Middlesex

Mostly cloudy. Showers likely this afternoon. Cooler with Highs in the lower 70s. South Winds 15 to 20 Mph with Gusts up to 30 Mph. Chance of rain 70 percent.

Tonight 6 May Southeast Middlesex

Mostly cloudy. Showers Likely, mainly this evening. Patchy fog. Lows around 50. Southwest Winds 10 to 15 Mph with Gusts up to 30 Mph, becoming west 5 to 10 Mph after midnight. Chance of rain 70 percent.

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Watertown Temperature Statistics

May Temperature

Laurence G Hanscom Field Airport (8.7 miles)

  • Lowest 3 May, 2026

    37.4 °F

  • Average May

    52.8 °F

  • Highest 4 May, 2026

    72 °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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