Clinton Harbor Weather Forecast

    • 68
    • 85

    Rain Showers Likely

    • 65
    • 81

    Chance Thunderstorms

    • 61
    • 83

    Mostly Sunny

    • 62
    • 80

    Mostly Sunny

    • 67
    • 79

    Rain Showers Likely

    • 64
    • 80

    Chance Rain Showers

    • 65
    • 80

    Mostly Sunny

Today 12 Aug Southern Middlesex

Sunny. Highs in the mid 80s. West Winds 5 to 10 Mph.

Tonight 12 Aug Southern Middlesex

Mostly cloudy. A slight chance of Showers and Thunderstorms in the Evening, then Showers likely with a chance of Thunderstorms after midnight. Lows in the upper 60s. West Winds around 5 Mph. Chance of rain 60 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Clinton Harbor Temperature Statistics

August Temperature

Chester, Chester Airport (8.1 miles)

  • Lowest 4 August, 2026

    60.8 °F

  • Average August

    77.5 °F

  • Highest 7 August, 2026

    93.2 °F

Climate (2021–2026)

Chester, Chester Airport (8.1 miles)

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  • Average Low 2021–2026

    45.2 °F

  • Average 2021–2026

    53.6 °F

  • Average High 2021–2026

    62.6 °F
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