Mystic River - Island End River Weather Forecast

    • 29
    • 38

    Increasing Clouds

    • 36
    • 44

    Slight Chance Rain

    • 36
    • 49

    Chance Rain

    • 21
    • 43

    Chance Snow

    • 21
    • 29

    Slight Chance Snow

    • 25
    • 35

    Chance Snow

Today 12 Jan Suffolk

Sunny in the Morning, then becoming partly sunny. Highs in the upper 30s. West Winds 15 to 20 Mph. Gusts up to 40 Mph, decreasing to 30 Mph in the afternoon.

Tonight 12 Jan Suffolk

Partly cloudy. Lows in the upper 20s. Southwest Winds 5 to 10 Mph. Gusts up to 20 Mph in the evening.

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Mystic River - Island End River Temperature Statistics

January Temperature

Boston, Logan International Airport (2.5 miles)

  • Lowest 5 January, 2026

    16 °F

  • Average January

    29.5 °F

  • Highest 9 January, 2026

    52 °F

Climate (2021–Present)

Boston, Logan International Airport (2.5 miles)

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  • Average Low 2021–2026

    46.9 °F

  • Average 2021–2026

    53.7 °F

  • Average High 2021–2026

    61 °F
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