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

38°F

3°C

Humidity 73%
Wind Speed Calm
Barometer 30.19 in (1022.3 mb)
Dewpoint 30°F (-1°C)
Visibility 10.00 mi
Last update 16 Feb 5:54 pm EST
Extended Forecast for

Valley Forge PA

  • Tonight

    Tonight: Patchy fog after 11pm. Otherwise, mostly cloudy, with a low around 30. Calm wind.

    Low: 30 °F

    Patchy Fog

  • Tuesday

    Tuesday: Patchy fog before 11am. Otherwise, mostly cloudy, with a high near 49. Southwest wind around 5 mph.

    High: 49 °F

    Patchy Fog
    then Partly
    Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 36. Calm wind.

    Low: 36 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A chance of rain, mainly after 1pm. Cloudy, with a high near 51. Calm wind becoming south around 5 mph in the afternoon. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.

    High: 51 °F

    Slight Chance
    Rain then
    Chance Rain

  • Wednesday Night

    Wednesday Night: A slight chance of rain before 1am. Partly cloudy, with a low around 40. Southwest wind around 5 mph becoming northwest after midnight. Chance of precipitation is 20%.

    Low: 40 °F

    Slight Chance
    Rain

  • Thursday

    Thursday: A slight chance of rain after 1pm. Mostly cloudy, with a high near 49. Chance of precipitation is 20%.

    High: 49 °F

    Mostly Cloudy
    then Slight
    Chance Rain

  • Thursday Night

    Thursday Night: Rain likely, mainly after 1am. Cloudy, with a low around 35. Chance of precipitation is 60%.

    Low: 35 °F

    Chance Rain
    then Rain
    Likely

  • Friday

    Friday: Rain. High near 43. Chance of precipitation is 80%.

    High: 43 °F

    Rain

  • Friday Night

    Friday Night: A chance of rain before 1am. Mostly cloudy, with a low around 35. Chance of precipitation is 40%.

    Low: 35 °F

    Chance Rain

Detailed Forecast

Tonight
Patchy fog after 11pm. Otherwise, mostly cloudy, with a low around 30. Calm wind.
Tuesday
Patchy fog before 11am. Otherwise, mostly cloudy, with a high near 49. Southwest wind around 5 mph.
Tuesday Night
Mostly cloudy, with a low around 36. Calm wind.
Wednesday
A chance of rain, mainly after 1pm. Cloudy, with a high near 51. Calm wind becoming south around 5 mph in the afternoon. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday Night
A slight chance of rain before 1am. Partly cloudy, with a low around 40. Southwest wind around 5 mph becoming northwest after midnight. Chance of precipitation is 20%.
Thursday
A slight chance of rain after 1pm. Mostly cloudy, with a high near 49. Chance of precipitation is 20%.
Thursday Night
Rain likely, mainly after 1am. Cloudy, with a low around 35. Chance of precipitation is 60%.
Friday
Rain. High near 43. Chance of precipitation is 80%.
Friday Night
A chance of rain before 1am. Mostly cloudy, with a low around 35. Chance of precipitation is 40%.
Saturday
Mostly cloudy, with a high near 46.
Saturday Night
Partly cloudy, with a low around 30.
Sunday
A chance of snow. Partly sunny, with a high near 39. Chance of precipitation is 40%.
Sunday Night
A chance of snow. Mostly cloudy, with a low around 25. Chance of precipitation is 30%.
Monday
Partly sunny, with a high near 37.
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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:
4:16 pm EST Feb 16, 2026
Forecast Valid:
5pm EST Feb 16, 2026-6pm EST Feb 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