Stewartsville Weather Forecast

    • 65
    • 82

    Increasing Clouds

    • 66
    • 84

    Chance Rain Showers

    • 54
    • 80

    Partly Sunny

    • 58
    • 74

    Rain Showers Likely

    • 60
    • 73

    Chance Rain Showers

    • 58
    • 74

    Chance Rain Showers

Today 16 Sep Warren

Mostly sunny. Highs around 80. Southwest Winds around 5 Mph.

Tonight 16 Sep Warren

Mostly cloudy. Not as cool with Lows in the mid 60s. Southwest Winds around 5 Mph.

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  • Temperature Real-Time

Stewartsville Temperature Statistics

September Temperature

Allentown, Lehigh Valley International Airport (17.4 miles)

  • Lowest 12 September, 2026

    52.6 °F

  • Average September

    72.2 °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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