Belmont Weather Forecast

    • 22
    • 41

    Partly Sunny

    • 4
    • 31

    Decreasing Clouds

    • 5
    • 15

    Chance Snow

    • 17
    • 25

    Snow

    • 8
    • 25

    Snow Likely

    • 7
    • 21

    Partly Sunny

    • 6
    • 24

    Slight Chance Snow

Today 22 Jan Southeast Middlesex

Mostly sunny. Not as cool with Highs in the lower 40s. West Winds around 10 Mph with Gusts up to 20 Mph.

Tonight 22 Jan Southeast Middlesex

Partly cloudy. Lows in the lower 20s. West Winds 5 to 10 Mph.

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Belmont Temperature Statistics

January Temperature

Laurence G Hanscom Field Airport (7.5 miles)

  • Lowest 5 January, 2026

    10 °F

  • Average January

    29.8 °F

  • Highest 15 January, 2026

    51.1 °F

Climate (2021–Present)

Laurence G Hanscom Field Airport (7.5 miles)

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  • Average Low 2021–2026

    41.5 °F

  • Average 2021–2026

    51.8 °F

  • Average High 2021–2026

    61.8 °F
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