Belfast Weather Forecast

    • 4
    • 20

    Mostly Cloudy

    • 2
    • 21

    Partly Sunny

    • 0
    • 17

    Mostly Sunny

    • 4
    • 21

    Partly Sunny

    • 16
    • 23

    Chance Snow

    • 13
    • 32

    Partly Sunny

    • 11
    • 31

    Partly Sunny

Today 28 Jan Coastal Waldo

Partly sunny. Highs around 20. Northwest Winds around 10 Mph with Gusts up to 20 Mph.

Tonight 28 Jan Coastal Waldo

Mostly cloudy. Lows around 4 above. Light and variable Winds.

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Belfast Temperature Statistics

January Temperature

Rockland, Knox County Regional Airport (24.9 miles)

  • Lowest 25 January, 2026

    -7.1 °F

  • Average January

    24.7 °F

  • Highest 14 January, 2026

    46.9 °F

Climate (2021–Present)

Rockland, Knox County Regional Airport (24.9 miles)

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  • Average Low 2021–2026

    39.7 °F

  • Average 2021–2026

    47.7 °F

  • Average High 2021–2026

    55 °F
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