Bath Weather Forecast

    • 58
    • 78

    Mostly Cloudy

    • 60
    • 71

    Chance Rain Showers

    • 58
    • 82

    Partly Sunny

    • 54
    • 84

    Mostly Sunny

    • 52
    • 75

    Partly Sunny

    • 55
    • 75

    Mostly Cloudy

Today 16 Sep Northampton

Mostly sunny. Highs in the upper 70s. Northeast Winds 5 to 10 Mph.

Tonight 16 Sep Northampton

Mostly cloudy. A chance of Showers after midnight. Lows in the upper 50s. Northeast Winds 5 to 10 Mph. Chance of rain 50 percent.

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Bath Temperature Statistics

September Temperature

Allentown, Lehigh Valley International Airport (5.6 miles)

  • Lowest 8 September, 2025

    48 °F

  • Average September

    66.7 °F

  • Highest 4 September, 2025

    82.9 °F

Climate (2020–Present)

Allentown, Lehigh Valley International Airport (5.6 miles)

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  • Average Low 2020–2025

    43.7 °F

  • Average 2020–2025

    53.7 °F

  • Average High 2020–2025

    63.5 °F
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