Horsham Weather Forecast

    • 48
    • 64

    Decreasing Clouds

    • 50
    • 69

    Partly Sunny

    • 61
    • 81

    Partly Sunny

    • 62
    • 86

    Partly Sunny

    • 62
    • 86

    Mostly Sunny

    • 68
    • 89

    Partly Sunny

Today 14 May Eastern Montgomery

Partly sunny. A slight chance of Showers late this morning. Cooler with Highs in the mid 60s. Northwest Winds around 10 Mph. Chance of rain 20 percent.

Tonight 14 May Eastern Montgomery

Partly cloudy. Lows in the upper 40s. Northwest Winds 5 to 10 Mph.

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Horsham Temperature Statistics

May Temperature

Philadelphia - Wings Field Airport (7.5 miles)

  • Lowest 12 May, 2026

    38.3 °F

  • Average May

    57.7 °F

  • Highest 5 May, 2026

    83.1 °F

Climate (2021–Present)

Philadelphia - Wings Field Airport (7.5 miles)

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  • Average Low 2021–2026

    44.5 °F

  • Average 2021–2026

    55.1 °F

  • Average High 2021–2026

    64.4 °F
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