Cambridge Weather Forecast

    • 49
    • 63

    Mostly Cloudy

    • 47
    • 61

    Decreasing Clouds

    • 48
    • 65

    Partly Sunny

    • 48
    • 65

    Mostly Cloudy

    • 46
    • 66

    Mostly Cloudy

    • 50
    • 65

    Chance Rain Showers

    • 52
    • 68

    Mostly Cloudy

Today 21 Sep Dane

Partly sunny. Highs in the lower 70s.

Tonight 21 Sep Dane

Cloudy. Light rain Showers likely in the Evening, then chance of light rain Showers in the late evening and overnight. Lows in the upper 40s. Northeast Winds 5 to 15 Mph. Chance of Showers 70 percent.

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Cambridge Temperature Statistics

September Temperature

Watertown (18.6 miles)

  • Lowest 14 September, 2026

    40.8 °F

  • Average September

    67.4 °F

  • Highest 1 September, 2026

    87.3 °F

Climate (2021–2026)

Watertown (18.6 miles)

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  • Average Low 2021–2026

    35.3 °F

  • Average 2021–2026

    44.9 °F

  • Average High 2021–2026

    53.8 °F
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