Watertown Weather Forecast

    • 31
    • 53

    Mostly Cloudy

    • 37
    • 51

    Partly Sunny

    • 40
    • 50

    Mostly Cloudy

    • 40
    • 60

    Partly Sunny

    • 40
    • 59

    Partly Sunny

    • 41
    • 57

    Chance Rain Showers

Today 20 Apr Southeast Middlesex

Partly sunny. Highs in the lower 50s. West Winds around 10 Mph. Gusts up to 20 Mph.

Tonight 20 Apr Southeast Middlesex

Mostly cloudy with a slight chance of rain in the Evening, then partly cloudy after midnight. Lows in the lower 30s. North Winds 5 to 10 Mph. Chance of rain 20 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Watertown Temperature Statistics

April Temperature

Laurence G Hanscom Field Airport (8.7 miles)

  • Lowest 8 April, 2026

    26.1 °F

  • Average April

    48.1 °F

  • Highest 15 April, 2026

    75.9 °F

Climate (2021–Present)

Laurence G Hanscom Field Airport (8.7 miles)

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  • Average Low 2021–2026

    41.4 °F

  • Average 2021–2026

    51.7 °F

  • Average High 2021–2026

    61.7 °F
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