Collegeville Weather Forecast

    • 50
    • 67

    Increasing Clouds

    • 53
    • 71

    Partly Sunny

    • 53
    • 69

    Chance Rain Showers

    • 53
    • 69

    Slight Chance Rain Showers

    • 52
    • 71

    Partly Sunny

    • 53
    • 73

    Mostly Sunny

Today 24 Sep Western Montgomery

Mostly sunny. Highs in the mid 60s. Northeast Winds 10 to 15 Mph with Gusts up to 25 Mph.

Tonight 24 Sep Western Montgomery

Mostly cloudy. Lows in the upper 40s. Northeast Winds around 10 Mph with Gusts up to 20 Mph.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Collegeville Temperature Statistics

September Temperature

Pottstown, Pottstown Limerick Airport (6.2 miles)

  • Lowest 15 September, 2026

    48 °F

  • Average September

    70.8 °F

  • Highest 1 September, 2026

    88 °F

Climate (2021–2026)

Pottstown, Pottstown Limerick Airport (6.2 miles)

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

  • Average Low 2021–2026

    44.6 °F

  • Average 2021–2026

    54.7 °F

  • Average High 2021–2026

    64.5 °F
Get WillyWeather+ to remove ads