Mystic River - Island End River Weather Forecast

    • 64
    • 85

    Partly Sunny

    • 66
    • 91

    Chance Thunderstorms

    • 58
    • 86

    Rain Showers

    • 59
    • 75

    Mostly Sunny

    • 63
    • 84

    Mostly Sunny

    • 67
    • 91

    Partly Sunny

    • 67
    • 90

    Slight Chance Rain Showers

Today 5 Jun Suffolk

Mostly sunny. Near steady temperature in the mid 80s. East Winds 5 to 10 Mph.

Tonight 5 Jun Suffolk

Mostly cloudy this Evening, then becoming partly cloudy. Lows in the mid 60s. Southeast Winds 5 to 10 Mph, becoming southwest after midnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Mystic River - Island End River Temperature Statistics

June Temperature

Boston, Logan International Airport (2.5 miles)

  • Lowest 1 June, 2026

    49.6 °F

  • Average June

    62.1 °F

  • Highest 3 June, 2026

    79 °F

Climate (2021–Present)

Boston, Logan International Airport (2.5 miles)

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  • Average Low 2021–2026

    46.7 °F

  • Average 2021–2026

    53.6 °F

  • Average High 2021–2026

    60.9 °F
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