Waltham Weather Forecast

    • 32
    • 44

    Rain Showers

    • 13
    • 41

    Snow

    • 6
    • 22

    Mostly Sunny

    • 2
    • 17

    Partly Sunny

    • 5
    • 17

    Partly Sunny

    • 15
    • 25

    Mostly Cloudy

Today 18 Jan Southeast Middlesex

Cloudy. Rain Showers in the afternoon. Highs in the mid 40s. South Winds 10 to 15 Mph with Gusts up to 25 Mph. Chance of rain 90 percent.

Tonight 18 Jan Southeast Middlesex

Mostly cloudy. Rain Showers likely in the evening. Patchy fog in the evening. Lows in the lower 30s. South Winds 10 to 15 Mph, becoming west around 5 Mph after midnight. Chance of rain 70 percent.

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Waltham Temperature Statistics

January Temperature

Laurence G Hanscom Field Airport (6.8 miles)

  • Lowest 7 January, 2025

    13.7 °F

  • Average January

    27.8 °F

  • Highest 1 January, 2025

    46.7 °F

Climate (2020–Present)

Laurence G Hanscom Field Airport (6.8 miles)

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  • Average Low 2020–2025

    41.9 °F

  • Average 2020–2025

    52 °F

  • Average High 2020–2025

    62.1 °F
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