Harmony Weather Forecast

    • 61
    • 84

    Slight Chance Rain Showers

    • 57
    • 80

    Partly Sunny

    • 54
    • 76

    Mostly Sunny

    • 56
    • 77

    Mostly Sunny

    • 58
    • 80

    Partly Sunny

    • 64
    • 76

    Chance Rain Showers

Today 4 Sep Warren

Mostly sunny. Highs in the lower 80s. Northwest Winds around 5 Mph.

Tonight 4 Sep Warren

Mostly cloudy in the Evening, then clearing. Lows around 60. North Winds around 5 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Harmony Temperature Statistics

September Temperature

Allentown, Lehigh Valley International Airport (17.4 miles)

  • Lowest 2 September, 2026

    68 °F

  • Average September

    74 °F

  • Highest 1 September, 2026

    88.6 °F

Climate (2021–2026)

Allentown, Lehigh Valley International Airport (17.4 miles)

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  • Average Low 2021–2026

    43.5 °F

  • Average 2021–2026

    53.7 °F

  • Average High 2021–2026

    63.6 °F
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