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.

Mostly Cloudy

73°F

23°C

Humidity 43%
Wind Speed S 6 mph
Barometer 29.96 in (1014.3 mb)
Dewpoint 49°F (9°C)
Visibility 10.00 mi
Last update 16 May 9:54 pm EDT
Extended Forecast for

Valley Forge PA

  • Tonight

    Tonight: A chance of sprinkles before 2am. Mostly cloudy, with a low around 62. West wind around 5 mph.

    Low: 62 °F

    Chance
    Sprinkles

  • Sunday

    Sunday: Sunny, with a high near 87. West wind around 5 mph.

    High: 87 °F

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 64. Calm wind.

    Low: 64 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 92. Light southeast wind becoming south 5 to 10 mph in the afternoon.

    High: 92 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 68. South wind around 5 mph.

    Low: 68 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 94.

    High: 94 °F

    Sunny

  • Tuesday Night

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

    Low: 71 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Showers likely and possibly a thunderstorm after 2pm. Mostly sunny, with a high near 95. Chance of precipitation is 70%.

    High: 95 °F

    Sunny then
    Showers
    Likely

  • Wednesday Night

    Wednesday Night: Showers likely and possibly a thunderstorm before 8pm, then a chance of showers. Mostly cloudy, with a low around 61. Chance of precipitation is 60%.

    Low: 61 °F

    Showers
    Likely

Detailed Forecast

Tonight
A chance of sprinkles before 2am. Mostly cloudy, with a low around 62. West wind around 5 mph.
Sunday
Sunny, with a high near 87. West wind around 5 mph.
Sunday Night
Partly cloudy, with a low around 64. Calm wind.
Monday
Sunny, with a high near 92. Light southeast wind becoming south 5 to 10 mph in the afternoon.
Monday Night
Mostly clear, with a low around 68. South wind around 5 mph.
Tuesday
Sunny, with a high near 94.
Tuesday Night
Partly cloudy, with a low around 71.
Wednesday
Showers likely and possibly a thunderstorm after 2pm. Mostly sunny, with a high near 95. Chance of precipitation is 70%.
Wednesday Night
Showers likely and possibly a thunderstorm before 8pm, then a chance of showers. Mostly cloudy, with a low around 61. Chance of precipitation is 60%.
Thursday
A chance of showers. Partly sunny, with a high near 72. Chance of precipitation is 40%.
Thursday Night
Mostly cloudy, with a low around 52.
Friday
A chance of showers. Mostly cloudy, 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 40%.
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:
Valley Forge PA
 40.1°N 75.48°W (Elev. 200 ft)
Last Update:
4:08 pm EDT May 16, 2026
Forecast Valid:
10pm EDT May 16, 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