Watertown Weather Forecast

    • 40
    • 67

    Rain Showers

    • 38
    • 67

    Rain Showers

    • 37
    • 42

    Chance Rain Showers

    • 54
    • 65

    Mostly Cloudy

    • 45
    • 68

    Chance Rain

    • 45
    • 70

    Chance Rain

Today 31 Mar Southeast Middlesex

Mostly cloudy. Numerous Showers with isolated Thunderstorms this morning. Some Thunderstorms may produce heavy rainfall. Highs in the mid 60s. Temperature falling into the mid 50s. Southwest Winds 10 to 15 Mph with Gusts up to 25 Mph. Chance of rain 60 percent.

Tonight 31 Mar Southeast Middlesex

Mostly cloudy with scattered Showers with isolated Thunderstorms. Patchy fog in the evening. Some Thunderstorms may produce heavy rainfall. Cooler with Lows around 40. Northeast Winds 10 to 15 Mph, becoming south around 5 Mph after midnight. Chance of rain 50 percent.

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Watertown Temperature Statistics

March Temperature

Laurence G Hanscom Field Airport (8.7 miles)

  • Lowest 2 March, 2026

    3.9 °F

  • Average March

    38.3 °F

  • Highest 10 March, 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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