Norristown Weather Forecast

    • 62
    • 82

    Gradual Clearing

    • 54
    • 77

    Mostly Sunny

    • 57
    • 77

    Mostly Sunny

    • 51
    • 75

    Mostly Sunny

    • 55
    • 73

    Partly Sunny

    • 53
    • 73

    Partly Sunny

Today 27 May Eastern Montgomery

Mostly cloudy. Showers likely with a slight chance of Thunderstorms this Morning, then a chance of Showers this afternoon. Highs in the lower 80s. West Winds 5 to 10 Mph. Chance of rain 70 percent.

Tonight 27 May Eastern Montgomery

Mostly cloudy in the Evening, then becoming partly cloudy. Lows in the lower 60s. West Winds around 5 Mph, becoming north after midnight.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Norristown Temperature Statistics

May Temperature

Philadelphia - Wings Field Airport (3.7 miles)

  • Lowest 12 May, 2026

    38.3 °F

  • Average May

    61.9 °F

  • Highest 19 May, 2026

    95.5 °F

Climate (2021–Present)

Philadelphia - Wings Field Airport (3.7 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2021–2026

    44.5 °F

  • Average 2021–2026

    55 °F

  • Average High 2021–2026

    64.4 °F
Get WillyWeather+ to remove ads