Boston Harbor - Mystic River Entrance Weather Forecast

    • 39
    • 49

    Chance Rain Showers

    • 38
    • 45

    Rain

    • 28
    • 42

    Rain Likely

    • 29
    • 37

    Partly Sunny

    • 33
    • 43

    Mostly Cloudy

    • 32
    • 46

    Mostly Cloudy

Today 9 Jan Suffolk

Partly sunny in the Morning, then mostly cloudy with a slight chance of rain Showers in the afternoon. Patchy fog and freezing fog in the morning. Highs around 50. South Winds 5 to 10 Mph. Gusts up to 25 Mph in the afternoon. Chance of precipitation 20 percent.

Tonight 9 Jan Suffolk

Partly cloudy. Patchy freezing fog. Lows in the upper 20s. Southwest Winds around 5 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Boston Harbor - Mystic River Entrance Temperature Statistics

January Temperature

Boston, Logan International Airport (2.5 miles)

  • Lowest 5 January, 2026

    16 °F

  • Average January

    25.2 °F

  • Highest 6 January, 2026

    35.1 °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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