Waltham Weather Forecast

    • 56
    • 73

    Chance Rain Showers

    • 46
    • 66

    Rain Showers

    • 46
    • 62

    Rain Showers

    • 40
    • 60

    Rain Showers Likely

    • 39
    • 55

    Chance Rain Showers

    • 35
    • 54

    Chance Rain Showers

Today 19 Oct Western Addison

Partly sunny. Warmer with Highs in the lower 70s. South Winds 15 to 20 Mph with Gusts up to 30 Mph.

Tonight 19 Oct Western Addison

Partly cloudy until Midnight, then mostly cloudy with a chance of Showers after midnight. Lows in the mid 50s. South Winds 15 to 20 Mph with Gusts up to 40 Mph. Chance of rain 40 percent.

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Waltham Temperature Statistics

October Temperature

Middlebury State Airport (12.4 miles)

  • Lowest 10 October, 2025

    26.6 °F

  • Average October

    52.1 °F

  • Highest 5 October, 2025

    81.9 °F

Climate (2020–Present)

Middlebury State Airport (12.4 miles)

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  • Average Low 2020–2025

    37 °F

  • Average 2020–2025

    46.1 °F

  • Average High 2020–2025

    54.9 °F
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