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

55°F

13°C

Humidity 87%
Wind Speed NE 8 mph
Barometer 30.32 in (1026.3 mb)
Dewpoint 51°F (11°C)
Visibility 10.00 mi
Wind Chill53°F (12°C)
Last update 22 May 6:54 am EDT
Extended Forecast for

Valley Forge PA

  • Today

    Today: A slight chance of showers before 3pm, then a slight chance of showers after 4pm. Mostly cloudy, with a high near 64. East wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.

    High: 64 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Tonight

    Tonight: Showers, mainly after 3am. Low around 46. East wind 5 to 10 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 46 °F

    Slight Chance
    Showers then
    Showers

  • Saturday

    Saturday: Showers. High near 56. East wind 10 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 100%. New precipitation amounts between three quarters and one inch possible.

    High: 56 °F

    Showers

  • Saturday Night

    Saturday Night: Showers before 11pm, then showers and possibly a thunderstorm between 11pm and 2am, then showers after 2am. Low around 48. East wind 10 to 15 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 48 °F

    Showers

  • Sunday

    Sunday: Showers likely before 2pm. Cloudy, with a high near 67. East wind 5 to 10 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 67 °F

    Showers
    Likely

  • Sunday Night

    Sunday Night: A chance of showers after 8pm. Cloudy, with a low around 55. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 55 °F

    Chance
    Showers

  • Memorial Day

    Memorial Day: Showers likely, mainly before 2pm. Mostly cloudy, with a high near 75. Chance of precipitation is 60%.

    High: 75 °F

    Showers
    Likely

  • Monday Night

    Monday Night: A chance of showers. Mostly cloudy, with a low around 59. Chance of precipitation is 40%.

    Low: 59 °F

    Chance
    Showers

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 79.

    High: 79 °F

    Mostly Cloudy

Detailed Forecast

Today
A slight chance of showers before 3pm, then a slight chance of showers after 4pm. Mostly cloudy, with a high near 64. East wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.
Tonight
Showers, mainly after 3am. Low around 46. East wind 5 to 10 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Saturday
Showers. High near 56. East wind 10 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 100%. New precipitation amounts between three quarters and one inch possible.
Saturday Night
Showers before 11pm, then showers and possibly a thunderstorm between 11pm and 2am, then showers after 2am. Low around 48. East wind 10 to 15 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.
Sunday
Showers likely before 2pm. Cloudy, with a high near 67. East wind 5 to 10 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Sunday Night
A chance of showers after 8pm. Cloudy, with a low around 55. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.
Memorial Day
Showers likely, mainly before 2pm. Mostly cloudy, with a high near 75. Chance of precipitation is 60%.
Monday Night
A chance of showers. Mostly cloudy, with a low around 59. Chance of precipitation is 40%.
Tuesday
Mostly cloudy, with a high near 79.
Tuesday Night
Mostly cloudy, with a low around 61.
Wednesday
Partly sunny, with a high near 82.
Wednesday Night
Mostly cloudy, with a low around 61.
Thursday
Mostly sunny, with a high near 80.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Valley Forge PA
 40.08°N 75.48°W (Elev. 230 ft)
Last Update:
4:08 am EDT May 22, 2026
Forecast Valid:
7am EDT May 22, 2026-6pm EDT May 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