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

Tracking Atmospheric River for the West Coast; Space Weather Storming Continues

An atmospheric river will bring threats of gusty to high winds and heavy rainfall to California mainly Thursday into Saturday which may bring areas of flooding and wind damage. Heavy snow will be possible over the Sierra Nevada mountains Thursday into Friday associated with the atmospheric river. Minor to severe geomagnetic storming (space weather) is expected to continue into early Thursday. Read More >

Current conditions at

Pottstown, Pottstown Limerick Airport (KPTW)

Lat: 40.24°NLon: 75.55°WElev: 288ft.

A Few Clouds

46°F

8°C

Humidity 47%
Wind Speed SW 8 mph
Barometer 29.91 in (1012.5 mb)
Dewpoint 27°F (-3°C)
Visibility 10.00 mi
Wind Chill42°F (6°C)
Last update 13 Nov 4:54 am EST
Extended Forecast for

Collegeville PA

  • Today

    Today: Increasing clouds, with a high near 52. West wind 10 to 15 mph, with gusts as high as 35 mph.

    High: 52 °F

    Increasing
    Clouds

  • Tonight

    Tonight: Mostly clear, with a low around 31. West wind 5 to 10 mph.

    Low: 31 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 51. Northwest wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 51 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 27. Northwest wind around 5 mph becoming calm.

    Low: 27 °F

    Partly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 52. Calm wind becoming southwest around 5 mph in the afternoon.

    High: 52 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Rain and possibly a thunderstorm. Low around 43. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 43 °F

    Rain

  • Sunday

    Sunday: A chance of rain before 1pm. Partly sunny, with a high near 61. Chance of precipitation is 30%.

    High: 61 °F

    Chance Rain

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 35.

    Low: 35 °F

    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 49.

    High: 49 °F

    Mostly Sunny

Detailed Forecast

Today
Increasing clouds, with a high near 52. West wind 10 to 15 mph, with gusts as high as 35 mph.
Tonight
Mostly clear, with a low around 31. West wind 5 to 10 mph.
Friday
Mostly sunny, with a high near 51. Northwest wind 5 to 10 mph, with gusts as high as 20 mph.
Friday Night
Partly cloudy, with a low around 27. Northwest wind around 5 mph becoming calm.
Saturday
Partly sunny, with a high near 52. Calm wind becoming southwest around 5 mph in the afternoon.
Saturday Night
Rain and possibly a thunderstorm. Low around 43. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunday
A chance of rain before 1pm. Partly sunny, with a high near 61. Chance of precipitation is 30%.
Sunday Night
Mostly clear, with a low around 35.
Monday
Mostly sunny, with a high near 49.
Monday Night
Partly cloudy, with a low around 30.
Tuesday
Partly sunny, with a high near 50.
Tuesday Night
Mostly cloudy, with a low around 33.
Wednesday
Partly sunny, with a high near 52.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Collegeville PA
 40.19°N 75.46°W (Elev. 200 ft)
Last Update:
4:09 am EST Nov 13, 2025
Forecast Valid:
5am EST Nov 13, 2025-6pm EST Nov 19, 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