Hackettstown Weather Forecast

    • 54
    • 77

    Mostly Sunny

    • 58
    • 81

    Partly Sunny

    • 68
    • 84

    Partly Sunny

    • 57
    • 82

    Chance Rain Showers

    • 55
    • 76

    Mostly Sunny

    • 60
    • 79

    Partly Sunny

Today 7 Sep Warren

Sunny. Highs in the upper 70s. North Winds around 5 Mph.

Tonight 7 Sep Warren

Mostly clear. Lows in the mid 50s. Light and variable Winds.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Hackettstown Temperature Statistics

September Temperature

Andover, Aeroflex-Andover Airport (11.2 miles)

  • Lowest 5 September, 2026

    61 °F

  • Average September

    71.7 °F

  • Highest 3 September, 2026

    86 °F

Climate (2021–2026)

Andover, Aeroflex-Andover Airport (11.2 miles)

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  • Average Low 2021–2026

    43.7 °F

  • Average 2021–2026

    53.6 °F

  • Average High 2021–2026

    63.6 °F
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