Horsham Weather Forecast

    • 60
    • 75

    Rain Showers Likely

    • 61
    • 69

    Rain Showers Likely

    • 60
    • 80

    Partly Sunny

    • 57
    • 84

    Mostly Sunny

    • 54
    • 75

    Partly Sunny

    • 56
    • 75

    Partly Sunny

Today 16 Sep Eastern Montgomery

Partly sunny. A chance of Showers in the afternoon. Highs in the mid 70s. Northeast Winds 5 to 10 Mph with Gusts up to 25 Mph. Chance of rain 40 percent.

Tonight 16 Sep Eastern Montgomery

Mostly cloudy. A chance of Showers in the Evening, then Showers likely with a chance of Thunderstorms after midnight. Lows around 60. Northeast Winds 5 to 10 Mph with Gusts up to 20 Mph. Chance of rain 70 percent.

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Horsham Temperature Statistics

September Temperature

Philadelphia - Wings Field Airport (7.5 miles)

  • Lowest 8 September, 2025

    46.4 °F

  • Average September

    67.8 °F

  • Highest 6 September, 2025

    85.3 °F

Climate (2020–Present)

Philadelphia - Wings Field Airport (7.5 miles)

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  • Average Low 2020–2025

    44.6 °F

  • Average 2020–2025

    55.2 °F

  • Average High 2020–2025

    64.6 °F
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