National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Pottstown, Pottstown Limerick Airport (KPTW)

Lat: 40.24°NLon: 75.55°WElev: 288ft.

Mostly Cloudy

73°F

23°C

Humidity 79%
Wind Speed W 3 mph
Barometer 30.09 in (1018.4 mb)
Dewpoint 66°F (19°C)
Visibility 10.00 mi
Last update 25 May 3:54 pm EDT
Extended Forecast for

Collegeville PA

  • Tonight

    Tonight: Patchy fog after 9pm. Otherwise, mostly cloudy, with a low around 58. Calm wind.

    Low: 58 °F

    Patchy Fog

  • Tuesday

    Tuesday: Areas of fog before 8am. Otherwise, partly sunny, with a high near 81. Calm wind becoming south around 5 mph.

    High: 81 °F

    Areas Fog
    then Partly
    Sunny

  • Tuesday Night

    Tuesday Night: A chance of showers after 2am. Mostly cloudy, with a low around 63. South wind around 5 mph becoming calm. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 63 °F

    Mostly Cloudy
    then Chance
    Showers

  • Wednesday

    Wednesday: A chance of showers before 2pm. Mostly cloudy, with a high near 82. Calm wind becoming west around 5 mph in the afternoon. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    High: 82 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: A slight chance of showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and 2am. Mostly cloudy, with a low around 61. West wind around 5 mph becoming calm. Chance of precipitation is 20%.

    Low: 61 °F

    Slight Chance
    T-storms then
    Slight Chance
    Showers

  • Thursday

    Thursday: Mostly sunny, with a high near 77.

    High: 77 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 54.

    Low: 54 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 75.

    High: 75 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 53.

    Low: 53 °F

    Mostly Clear

Detailed Forecast

Tonight
Patchy fog after 9pm. Otherwise, mostly cloudy, with a low around 58. Calm wind.
Tuesday
Areas of fog before 8am. Otherwise, partly sunny, with a high near 81. Calm wind becoming south around 5 mph.
Tuesday Night
A chance of showers after 2am. Mostly cloudy, with a low around 63. South wind around 5 mph becoming calm. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday
A chance of showers before 2pm. Mostly cloudy, with a high near 82. Calm wind becoming west around 5 mph in the afternoon. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday Night
A slight chance of showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and 2am. Mostly cloudy, with a low around 61. West wind around 5 mph becoming calm. Chance of precipitation is 20%.
Thursday
Mostly sunny, with a high near 77.
Thursday Night
Mostly clear, with a low around 54.
Friday
Sunny, with a high near 75.
Friday Night
Mostly clear, with a low around 53.
Saturday
Mostly sunny, with a high near 72.
Saturday Night
Partly cloudy, with a low around 52.
Sunday
Mostly sunny, with a high near 72.
Sunday Night
Partly cloudy, with a low around 53.
Monday
Sunny, with a high near 74.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Collegeville PA
 40.17°N 75.46°W (Elev. 98 ft)
Last Update:
4:08 pm EDT May 25, 2026
Forecast Valid:
4pm EDT May 25, 2026-6pm EDT Jun 1, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation