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.

Overcast

44°F

7°C

Humidity 68%
Wind Speed E 9 G 20 mph
Barometer 30.24 in (1023.9 mb)
Dewpoint 34°F (1°C)
Visibility 10.00 mi
Wind Chill39°F (4°C)
Last update 15 Mar 6:54 pm EDT
Extended Forecast for

Valley Forge PA

  • Tonight

    Tonight: Rain likely before 2am, then rain and possibly a thunderstorm between 2am and 5am, then a chance of rain after 5am. Low around 48. East wind 10 to 15 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 48 °F

    Slight Chance
    Rain then
    Rain

  • Monday

    Monday: Showers and thunderstorms, mainly before 3pm, then showers likely and possibly a thunderstorm after 4pm. Some of the storms could be severe. High near 67. Breezy, with a south wind 10 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.

    High: 67 °F

    Showers then
    Severe
    Thunderstorms
    and Breezy

  • Monday Night

    Monday Night: Rain showers before 2am, then a slight chance of rain and snow showers. Some thunder is also possible. Low around 30. Breezy, with a west wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 100%. Little or no snow accumulation expected.

    Low: 30 °F

    Breezy.
    Severe
    Thunderstorms
    then
    Rain/Snow

  • Tuesday

    Tuesday: Mostly sunny, with a high near 39. West wind around 15 mph, with gusts as high as 30 mph.

    High: 39 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 22. West wind 5 to 15 mph.

    Low: 22 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 39.

    High: 39 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 26.

    Low: 26 °F

    Mostly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 49.

    High: 49 °F

    Partly Sunny

  • Thursday Night

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

    Low: 34 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Rain likely before 2am, then rain and possibly a thunderstorm between 2am and 5am, then a chance of rain after 5am. Low around 48. East wind 10 to 15 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.
Monday
Showers and thunderstorms, mainly before 3pm, then showers likely and possibly a thunderstorm after 4pm. Some of the storms could be severe. High near 67. Breezy, with a south wind 10 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.
Monday Night
Rain showers before 2am, then a slight chance of rain and snow showers. Some thunder is also possible. Low around 30. Breezy, with a west wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 100%. Little or no snow accumulation expected.
Tuesday
Mostly sunny, with a high near 39. West wind around 15 mph, with gusts as high as 30 mph.
Tuesday Night
Mostly clear, with a low around 22. West wind 5 to 15 mph.
Wednesday
Mostly sunny, with a high near 39.
Wednesday Night
Mostly cloudy, with a low around 26.
Thursday
Partly sunny, with a high near 49.
Thursday Night
Mostly cloudy, with a low around 34.
Friday
Mostly sunny, with a high near 55.
Friday Night
A chance of showers. Mostly cloudy, with a low around 38. Chance of precipitation is 30%.
Saturday
A chance of showers. Mostly cloudy, with a high near 57. Chance of precipitation is 30%.
Saturday Night
Partly cloudy, with a low around 36.
Sunday
Mostly sunny, with a high near 54.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Valley Forge PA
 40.08°N 75.48°W (Elev. 230 ft)
Last Update:
4:13 pm EDT Mar 15, 2026
Forecast Valid:
7pm EDT Mar 15, 2026-6pm EDT Mar 22, 2026
 
Forecast Discussion
 
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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation