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

Briefing for Impacts from Strong Coastal Storm Sunday through Monday

A strong coastal storm is forecast to bring potentially significant impacts to our region. Moderate to major coastal flooding, strong to damaging winds, beach erosion, and very dangerous marine conditions are forecast. View this briefing for details on these threats. Read More >

Current conditions at

Pottstown, Pottstown Limerick Airport (KPTW)

Lat: 40.24°NLon: 75.55°WElev: 288ft.

Partly Cloudy

62°F

17°C

Humidity 43%
Wind Speed SE 8 mph
Barometer 30.37 in (1028.4 mb)
Dewpoint 39°F (4°C)
Visibility 10.00 mi
Last update 10 Oct 4:54 pm EDT
Extended Forecast for

Collegeville PA

  • Tonight

    Tonight: Mostly cloudy, with a low around 47. South wind around 5 mph becoming calm in the evening.

    Low: 47 °F

    Mostly Cloudy

  • Saturday

    Saturday: A slight chance of showers before 10am, then a chance of showers after 1pm. Mostly cloudy, with a high near 70. Northeast wind 5 to 15 mph. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.

    High: 70 °F

    Slight Chance
    Showers then
    Chance
    Showers

  • Saturday Night

    Saturday Night: Rain, mainly after 8pm. Low around 55. East wind 10 to 15 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 55 °F

    Rain

  • Sunday

    Sunday: Rain. High near 64. Breezy, with a northeast wind around 20 mph, with gusts as high as 30 mph. Chance of precipitation is 80%. New precipitation amounts between a half and three quarters of an inch possible.

    High: 64 °F

    Rain and
    Breezy

  • Sunday Night

    Sunday Night: Rain likely. Cloudy, with a low around 53. Northeast wind around 15 mph, with gusts as high as 30 mph. Chance of precipitation is 70%. New precipitation amounts between a half and three quarters of an inch possible.

    Low: 53 °F

    Rain Likely

  • Columbus Day

    Columbus Day: Rain likely. Cloudy, with a high near 61. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.

    High: 61 °F

    Rain Likely

  • Monday Night

    Monday Night: Rain likely, mainly before 2am. Mostly cloudy, with a low around 52. Chance of precipitation is 60%.

    Low: 52 °F

    Rain Likely

  • Tuesday

    Tuesday: A chance of rain before 8am. Mostly cloudy, with a high near 66. Chance of precipitation is 30%.

    High: 66 °F

    Chance Rain
    then Partly
    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 49.

    Low: 49 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a low around 47. South wind around 5 mph becoming calm in the evening.
Saturday
A slight chance of showers before 10am, then a chance of showers after 1pm. Mostly cloudy, with a high near 70. Northeast wind 5 to 15 mph. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.
Saturday Night
Rain, mainly after 8pm. Low around 55. East wind 10 to 15 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Sunday
Rain. High near 64. Breezy, with a northeast wind around 20 mph, with gusts as high as 30 mph. Chance of precipitation is 80%. New precipitation amounts between a half and three quarters of an inch possible.
Sunday Night
Rain likely. Cloudy, with a low around 53. Northeast wind around 15 mph, with gusts as high as 30 mph. Chance of precipitation is 70%. New precipitation amounts between a half and three quarters of an inch possible.
Columbus Day
Rain likely. Cloudy, with a high near 61. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.
Monday Night
Rain likely, mainly before 2am. Mostly cloudy, with a low around 52. Chance of precipitation is 60%.
Tuesday
A chance of rain before 8am. Mostly cloudy, with a high near 66. Chance of precipitation is 30%.
Tuesday Night
Partly cloudy, with a low around 49.
Wednesday
Mostly sunny, with a high near 68.
Wednesday Night
Partly cloudy, with a low around 45.
Thursday
Sunny, with a high near 62.
Thursday Night
Mostly clear, with a low around 40.
Friday
Mostly sunny, with a high near 63.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Collegeville PA
 40.17°N 75.46°W (Elev. 98 ft)
Last Update:
4:50 pm EDT Oct 10, 2025
Forecast Valid:
4pm EDT Oct 10, 2025-6pm EDT Oct 17, 2025
 
Forecast Discussion
 
Get as KML Get as XML

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