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.

Fog/Mist

27°F

-3°C

Humidity 89%
Wind Speed Calm
Barometer 30.06 in (1018.0 mb)
Dewpoint 24°F (-4°C)
Visibility 6.00 mi
Last update 15 Feb 1:54 am EST
Extended Forecast for

Valley Forge PA

  • Overnight

    Overnight: Patchy freezing fog after 3am. Mostly cloudy, with a low around 26. Calm wind.

    Low: 26 °F

    Patchy
    Freezing Fog

  • Sunday

    Sunday: A chance of rain, mainly after 3pm. Patchy freezing fog before 9am. Cloudy, with a high near 41. Calm wind becoming east around 5 mph in the afternoon. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    High: 41 °F

    Patchy
    Freezing Fog
    then Chance
    Rain

  • Sunday Night

    Sunday Night: Rain and snow likely before 10pm, then snow. Low around 30. East wind around 5 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 2 inches possible.

    Low: 30 °F

    Rain/Snow
    then Snow

  • Washington's Birthday

    Washington's Birthday: Mostly cloudy, with a high near 41. North wind around 5 mph.

    High: 41 °F

    Mostly Cloudy

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 29. Calm wind.

    Low: 29 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 46.

    High: 46 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 33.

    Low: 33 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A chance of rain after 1pm. Mostly cloudy, with a high near 45. Chance of precipitation is 30%.

    High: 45 °F

    Cloudy then
    Chance Rain

  • Wednesday Night

    Wednesday Night: A chance of rain before 1am. Mostly cloudy, with a low around 38. Chance of precipitation is 30%.

    Low: 38 °F

    Chance Rain

Detailed Forecast

Overnight
Patchy freezing fog after 3am. Mostly cloudy, with a low around 26. Calm wind.
Sunday
A chance of rain, mainly after 3pm. Patchy freezing fog before 9am. Cloudy, with a high near 41. Calm wind becoming east around 5 mph in the afternoon. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Sunday Night
Rain and snow likely before 10pm, then snow. Low around 30. East wind around 5 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 2 inches possible.
Washington's Birthday
Mostly cloudy, with a high near 41. North wind around 5 mph.
Monday Night
Mostly cloudy, with a low around 29. Calm wind.
Tuesday
Partly sunny, with a high near 46.
Tuesday Night
Mostly cloudy, with a low around 33.
Wednesday
A chance of rain after 1pm. Mostly cloudy, with a high near 45. Chance of precipitation is 30%.
Wednesday Night
A chance of rain before 1am. Mostly cloudy, with a low around 38. Chance of precipitation is 30%.
Thursday
A chance of rain. Partly sunny, with a high near 52. Chance of precipitation is 30%.
Thursday Night
A chance of rain. Mostly cloudy, with a low around 35. Chance of precipitation is 40%.
Friday
A chance of rain. Mostly cloudy, with a high near 47. Chance of precipitation is 50%.
Friday Night
A chance of rain. Mostly cloudy, with a low around 34. Chance of precipitation is 40%.
Saturday
Partly sunny, with a high near 46.
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:
4:17 pm EST Feb 14, 2026
Forecast Valid:
2am EST Feb 15, 2026-6pm EST Feb 21, 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