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.

Partly Cloudy

51°F

11°C

Humidity 38%
Wind Speed Vrbl 5 mph
Barometer 30.22 in (1023.1 mb)
Dewpoint 26°F (-3°C)
Visibility 10.00 mi
Wind Chill49°F (9°C)
Last update 21 Apr 8:54 pm EDT
Extended Forecast for

Valley Forge PA

  • Tonight

    Tonight: Mostly cloudy, with a low around 45. South wind 5 to 10 mph.

    Low: 45 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A chance of showers, mainly before 10am. Cloudy, then gradually becoming mostly sunny, with a high near 66. South wind around 5 mph becoming northwest in the afternoon. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    High: 66 °F

    Chance
    Showers then
    Partly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 49. Northeast wind around 5 mph becoming calm.

    Low: 49 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 73. Northwest wind 5 to 10 mph.

    High: 73 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 49. Northwest wind around 5 mph becoming calm.

    Low: 49 °F

    Partly Cloudy

  • Friday

    Friday: A slight chance of showers. Partly sunny, with a high near 64. Chance of precipitation is 20%.

    High: 64 °F

    Slight Chance
    Showers

  • Friday Night

    Friday Night: A chance of showers. Mostly cloudy, with a low around 45. Chance of precipitation is 50%.

    Low: 45 °F

    Chance
    Showers

  • Saturday

    Saturday: Showers likely. Mostly cloudy, with a high near 51. Chance of precipitation is 70%.

    High: 51 °F

    Showers
    Likely

  • Saturday Night

    Saturday Night: Showers likely, mainly before 2am. Mostly cloudy, with a low around 42. Chance of precipitation is 60%.

    Low: 42 °F

    Showers
    Likely

Detailed Forecast

Tonight
Mostly cloudy, with a low around 45. South wind 5 to 10 mph.
Wednesday
A chance of showers, mainly before 10am. Cloudy, then gradually becoming mostly sunny, with a high near 66. South wind around 5 mph becoming northwest in the afternoon. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday Night
Partly cloudy, with a low around 49. Northeast wind around 5 mph becoming calm.
Thursday
Sunny, with a high near 73. Northwest wind 5 to 10 mph.
Thursday Night
Partly cloudy, with a low around 49. Northwest wind around 5 mph becoming calm.
Friday
A slight chance of showers. Partly sunny, with a high near 64. Chance of precipitation is 20%.
Friday Night
A chance of showers. Mostly cloudy, with a low around 45. Chance of precipitation is 50%.
Saturday
Showers likely. Mostly cloudy, with a high near 51. Chance of precipitation is 70%.
Saturday Night
Showers likely, mainly before 2am. Mostly cloudy, with a low around 42. Chance of precipitation is 60%.
Sunday
A chance of showers before 2pm. Mostly cloudy, with a high near 59. Chance of precipitation is 30%.
Sunday Night
Mostly cloudy, with a low around 42.
Monday
Mostly sunny, with a high near 65.
Monday Night
A chance of showers. Mostly cloudy, with a low around 47. Chance of precipitation is 30%.
Tuesday
A chance of showers. Partly sunny, with a high near 65. Chance of precipitation is 50%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Valley Forge PA
 40.08°N 75.48°W (Elev. 230 ft)
Last Update:
4:11 pm EDT Apr 21, 2026
Forecast Valid:
9pm EDT Apr 21, 2026-6pm EDT Apr 28, 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