Watertown Weather Forecast

    • 49
    • 60

    Rain Showers

    • 46
    • 73

    Rain Showers Likely

    • 44
    • 62

    Chance Rain Showers

    • 44
    • 62

    Partly Sunny

    • 47
    • 63

    Rain Showers Likely

    • 47
    • 63

    Rain Showers Likely

Today 9 May Southeast Middlesex

Showers with isolated Thunderstorms. Near steady temperature in the upper 50s. South Winds 5 to 10 Mph with Gusts up to 20 Mph. Chance of rain 80 percent.

Tonight 9 May Southeast Middlesex

Mostly cloudy. Showers with isolated Thunderstorms in the Evening, then a slight chance of Showers after midnight. Patchy fog. Lows in the upper 40s. South Winds 5 to 10 Mph. Gusts up to 20 Mph in the evening. Chance of rain 80 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 3 May, 2026

    37.4 °F

  • Average May

    56.6 °F

  • Highest 5 May, 2026

    81 °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

    61.7 °F
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