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.

A Few Clouds

56°F

13°C

Humidity 70%
Wind Speed Calm
Barometer 29.93 in (1013.1 mb)
Dewpoint 46°F (8°C)
Visibility 10.00 mi
Last update 11 Mar 5:54 am EDT
Extended Forecast for

Collegeville PA

  • Today

    Today: A chance of showers, mainly between 11am and 3pm. Partly sunny, with a high near 78. South wind 5 to 10 mph increasing to 10 to 15 mph in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 40%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 78 °F

    Chance
    Showers

  • Tonight

    Tonight: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 5am. Increasing clouds, with a low around 47. South wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 47 °F

    Showers
    Likely

  • Thursday

    Thursday: Showers likely, mainly before 8am. Cloudy, with a temperature falling to around 45 by 11am. Breezy, with a northwest wind around 20 mph, with gusts as high as 30 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 54 °F⇓

    Showers
    Likely and
    Breezy

  • Thursday Night

    Thursday Night: Mostly cloudy, then gradually becoming clear, with a low around 30. West wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 30 °F

    Decreasing
    Clouds

  • Friday

    Friday: Partly sunny, with a high near 50. Breezy, with a south wind 5 to 10 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 30 mph.

    High: 50 °F

    Mostly Sunny
    then Mostly
    Cloudy and
    Breezy

  • Friday Night

    Friday Night: Partly cloudy, with a low around 37.

    Low: 37 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 50.

    High: 50 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 34.

    Low: 34 °F

    Mostly Cloudy

  • Sunday

    Sunday: Cloudy, with a high near 55.

    High: 55 °F

    Cloudy

Detailed Forecast

Today
A chance of showers, mainly between 11am and 3pm. Partly sunny, with a high near 78. South wind 5 to 10 mph increasing to 10 to 15 mph in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 40%. New precipitation amounts between a tenth and quarter of an inch possible.
Tonight
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 5am. Increasing clouds, with a low around 47. South wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday
Showers likely, mainly before 8am. Cloudy, with a temperature falling to around 45 by 11am. Breezy, with a northwest wind around 20 mph, with gusts as high as 30 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Thursday Night
Mostly cloudy, then gradually becoming clear, with a low around 30. West wind 5 to 10 mph, with gusts as high as 20 mph.
Friday
Partly sunny, with a high near 50. Breezy, with a south wind 5 to 10 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 30 mph.
Friday Night
Partly cloudy, with a low around 37.
Saturday
Sunny, with a high near 50.
Saturday Night
Mostly cloudy, with a low around 34.
Sunday
Cloudy, with a high near 55.
Sunday Night
Rain, mainly after 2am. Low around 47. Chance of precipitation is 90%.
Monday
Rain. High near 62. Chance of precipitation is 80%.
Monday Night
A chance of rain and snow. Partly cloudy, with a low around 27. Chance of precipitation is 30%.
Tuesday
Mostly sunny, with a high near 38.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Collegeville PA
 40.17°N 75.46°W (Elev. 98 ft)
Last Update:
4:09 am EDT Mar 11, 2026
Forecast Valid:
6am EDT Mar 11, 2026-6pm EDT Mar 17, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation