Dunellen Weather Forecast

    • 68
    • 90

    Chance Thunderstorms

    • 62
    • 83

    Mostly Sunny

    • 63
    • 83

    Mostly Sunny

    • 67
    • 87

    Partly Sunny

    • 73
    • 92

    Mostly Sunny

    • 76
    • 99

    Slight Chance Thunderstorms

    • 74
    • 95

    Chance Thunderstorms

Today 20 Jul Middlesex

Patchy fog this morning. Mostly cloudy with a slight chance of Showers and Thunderstorms this Morning, then mostly sunny with a chance of Showers and Thunderstorms this afternoon. Hot with Highs around 90. Southwest Winds around 5 Mph. Chance of rain 40 percent.

Tonight 20 Jul Middlesex

Partly cloudy with a chance of Showers and Thunderstorms this Evening, then mostly clear after midnight. Lows in the upper 60s. Northwest Winds around 5 Mph. Chance of rain 50 percent.

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Dunellen Temperature Statistics

July Temperature

Somerville, Somerset Airport (10.6 miles)

  • Lowest 5 July, 2025

    55.7 °F

  • Average July

    78.8 °F

  • Highest 8 July, 2025

    95.6 °F

Climate (2020–Present)

Somerville, Somerset Airport (10.6 miles)

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  • Average Low 2020–2025

    43.4 °F

  • Average 2020–2025

    54.4 °F

  • Average High 2020–2025

    65.8 °F
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