Current conditions at

Pottstown, Pottstown Limerick Airport (KPTW)

Lat: 40.24°NLon: 75.55°WElev: 288ft.

A Few Clouds

93°F

34°C

Humidity 36%
Wind Speed SW 10 G 17 mph
Barometer 30.05 in (1016.9 mb)
Dewpoint 62°F (17°C)
Visibility 10.00 mi
Heat Index94°F (34°C)
Last update 19 May 2:54 pm EDT
Extended Forecast for

Valley Forge PA

Heat Advisory May 19, 03:25pm until May 20, 08:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory May 19, 03:25pm until May 20, 08:00pm

    NOW until 8:00pm Wed

    Heat Advisory

  • Tonight

    Low: 72 °F

    Partly Cloudy

  • Wednesday

    Wednesday: A chance of showers and thunderstorms between 2pm and 4pm, then showers likely and possibly a thunderstorm after 4pm.  Increasing clouds, with a high near 92. West wind 5 to 15 mph.  Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 92 °F

    Sunny then
    Showers
    Likely

  • Wednesday Night

    Wednesday Night: Showers and thunderstorms likely.  Mostly cloudy, with a low around 55. North wind 5 to 10 mph.  Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 55 °F

    Showers
    Likely

  • Thursday

    Thursday: Showers likely, mainly before 8am.  Mostly cloudy, with a high near 65. North wind 5 to 10 mph.  Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 65 °F

    Showers
    Likely

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 51. Calm wind.

    Low: 51 °F

    Mostly Cloudy

  • Friday

    Friday: A chance of showers.  Mostly cloudy, with a high near 64. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.

    High: 64 °F

    Chance
    Showers

  • Friday Night

    Friday Night: Showers.  Low around 48. Chance of precipitation is 80%.

    Low: 48 °F

    Showers

  • Saturday

    Saturday: Showers.  High near 60. Chance of precipitation is 80%.

    High: 60 °F

    Showers

Detailed Forecast

Tonight
Partly cloudy, with a low around 72. Southwest wind 5 to 10 mph, with gusts as high as 20 mph.
Wednesday
A chance of showers and thunderstorms between 2pm and 4pm, then showers likely and possibly a thunderstorm after 4pm. Increasing clouds, with a high near 92. West wind 5 to 15 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
Showers and thunderstorms likely. Mostly cloudy, with a low around 55. North wind 5 to 10 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday
Showers likely, mainly before 8am. Mostly cloudy, with a high near 65. North wind 5 to 10 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Thursday Night
Mostly cloudy, with a low around 51. Calm wind.
Friday
A chance of showers. Mostly cloudy, with a high near 64. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.
Friday Night
Showers. Low around 48. Chance of precipitation is 80%.
Saturday
Showers. High near 60. Chance of precipitation is 80%.
Saturday Night
Showers, mainly before 2am. Low around 51. Chance of precipitation is 80%.
Sunday
A chance of showers. Mostly cloudy, with a high near 68. Chance of precipitation is 50%.
Sunday Night
A chance of showers. Mostly cloudy, with a low around 56. Chance of precipitation is 50%.
Memorial Day
A chance of showers. Mostly cloudy, with a high near 75. Chance of precipitation is 30%.
Monday Night
A chance of showers. Mostly cloudy, with a low around 58. Chance of precipitation is 40%.
Tuesday
A chance of showers. Mostly cloudy, with a high near 77. Chance of precipitation is 30%.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
Valley Forge PA
 40.08°N 75.48°W (Elev. 230 ft)
2:32 pm EDT May 19, 2026
3pm EDT May 19, 2026-6pm EDT May 26, 2026
 
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