Norristown Weather Forecast

    • 59
    • 73

    Chance Rain Showers

    • 60
    • 83

    Sunny

    • 65
    • 84

    Mostly Sunny

    • 66
    • 83

    Rain Showers Likely

    • 59
    • 82

    Chance Rain Showers

    • 56
    • 77

    Mostly Sunny

Today 21 Aug Eastern Montgomery

Mostly cloudy. A chance of Showers with a slight chance of Thunderstorms in the morning. Humid with Highs in the lower 70s. Northeast Winds 10 to 15 Mph with Gusts up to 30 Mph. Chance of rain 40 percent.

Tonight 21 Aug Eastern Montgomery

Partly cloudy in the Evening, then clearing. Lows in the upper 50s. North Winds 10 to 15 Mph with Gusts up to 25 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Norristown Temperature Statistics

August Temperature

Philadelphia - Wings Field Airport (3.7 miles)

  • Lowest 9 August, 2025

    51.4 °F

  • Average August

    73.7 °F

  • Highest 17 August, 2025

    91.6 °F

Climate (2020–Present)

Philadelphia - Wings Field Airport (3.7 miles)

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  • Average Low 2020–2025

    44.7 °F

  • Average 2020–2025

    55.2 °F

  • Average High 2020–2025

    64.6 °F
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