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.

Fair

82°F

28°C

Humidity 44%
Wind Speed Vrbl 3 mph
Barometer 30.11 in (1019.1 mb)
Dewpoint 58°F (14°C)
Visibility 10.00 mi
Heat Index82°F (28°C)
Last update 17 May 12:54 pm EDT
Extended Forecast for

Collegeville PA

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 88. West wind 5 to 10 mph.

    High: 88 °F

    Mostly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 65. Southwest wind around 5 mph becoming calm in the evening.

    Low: 65 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 93. Calm wind becoming southwest around 5 mph in the afternoon.

    High: 93 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 69. South wind around 5 mph.

    Low: 69 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 95. Southwest wind 5 to 10 mph.

    High: 95 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 71.

    Low: 71 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Showers and possibly a thunderstorm after 2pm. High near 92. Chance of precipitation is 80%.

    High: 92 °F

    Sunny then
    Showers

  • Wednesday Night

    Wednesday Night: Showers and possibly a thunderstorm before 8pm, then a chance of showers between 8pm and 2am. Low around 57. Chance of precipitation is 80%.

    Low: 57 °F

    Showers then
    Chance
    Showers

  • Thursday

    Thursday: Partly sunny, with a high near 72.

    High: 72 °F

    Partly Sunny

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 88. West wind 5 to 10 mph.
Tonight
Partly cloudy, with a low around 65. Southwest wind around 5 mph becoming calm in the evening.
Monday
Sunny, with a high near 93. Calm wind becoming southwest around 5 mph in the afternoon.
Monday Night
Mostly clear, with a low around 69. South wind around 5 mph.
Tuesday
Mostly sunny, with a high near 95. Southwest wind 5 to 10 mph.
Tuesday Night
Partly cloudy, with a low around 71.
Wednesday
Showers and possibly a thunderstorm after 2pm. High near 92. Chance of precipitation is 80%.
Wednesday Night
Showers and possibly a thunderstorm before 8pm, then a chance of showers between 8pm and 2am. Low around 57. Chance of precipitation is 80%.
Thursday
Partly sunny, with a high near 72.
Thursday Night
Mostly cloudy, with a low around 51.
Friday
A chance of showers. Partly sunny, with a high near 68. Chance of precipitation is 40%.
Friday Night
A chance of showers. Mostly cloudy, with a low around 51. Chance of precipitation is 30%.
Saturday
A chance of showers. Mostly cloudy, with a high near 69. Chance of precipitation is 40%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Collegeville PA
 40.19°N 75.46°W (Elev. 200 ft)
Last Update:
4:08 am EDT May 17, 2026
Forecast Valid:
1pm EDT May 17, 2026-6pm EDT May 23, 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