National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Pottstown, Pottstown Limerick Airport (KPTW)

Lat: 40.24°NLon: 75.55°WElev: 288ft.

Fog/Mist

40°F

4°C

Humidity 93%
Wind Speed Calm
Barometer 29.77 in (1008.1 mb)
Dewpoint 38°F (3°C)
Visibility 5.00 mi
Last update 18 Feb 5:54 pm EST
Extended Forecast for

Valley Forge PA

  • Tonight

    Tonight: A chance of light rain. Patchy fog. Otherwise, cloudy, with a low around 35. Northeast wind 5 to 10 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 35 °F

    Chance Light
    Rain and
    Patchy Fog

  • Thursday

    Thursday: Light rain likely, mainly after 4pm. Patchy fog before 1pm. Otherwise, cloudy, with a high near 43. East wind 5 to 10 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 43 °F

    Light Rain
    Likely and
    Patchy Fog

  • Thursday Night

    Thursday Night: Periods of rain. Patchy fog between midnight and 2am. Low around 36. East wind around 5 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 36 °F

    Rain Likely
    then Rain and
    Patchy Fog

  • Friday

    Friday: Periods of rain, mainly before 1pm. High near 44. East wind around 5 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    High: 44 °F

    Rain

  • Friday Night

    Friday Night: A slight chance of rain before 1am. Mostly cloudy, with a low around 36. Northeast wind around 5 mph becoming west after midnight. Chance of precipitation is 20%.

    Low: 36 °F

    Slight Chance
    Rain

  • Saturday

    Saturday: Partly sunny, with a high near 49.

    High: 49 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 32.

    Low: 32 °F

    Mostly Cloudy

  • Sunday

    Sunday: Snow likely, mainly after 1pm. Mostly cloudy, with a high near 40. Chance of precipitation is 60%.

    High: 40 °F

    Snow Likely

  • Sunday Night

    Sunday Night: A chance of snow. Mostly cloudy, with a low around 29. Chance of precipitation is 50%.

    Low: 29 °F

    Chance Snow

Detailed Forecast

Tonight
A chance of light rain. Patchy fog. Otherwise, cloudy, with a low around 35. Northeast wind 5 to 10 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.
Thursday
Light rain likely, mainly after 4pm. Patchy fog before 1pm. Otherwise, cloudy, with a high near 43. East wind 5 to 10 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Thursday Night
Periods of rain. Patchy fog between midnight and 2am. Low around 36. East wind around 5 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Friday
Periods of rain, mainly before 1pm. High near 44. East wind around 5 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Friday Night
A slight chance of rain before 1am. Mostly cloudy, with a low around 36. Northeast wind around 5 mph becoming west after midnight. Chance of precipitation is 20%.
Saturday
Partly sunny, with a high near 49.
Saturday Night
Mostly cloudy, with a low around 32.
Sunday
Snow likely, mainly after 1pm. Mostly cloudy, with a high near 40. Chance of precipitation is 60%.
Sunday Night
A chance of snow. Mostly cloudy, with a low around 29. Chance of precipitation is 50%.
Monday
A chance of snow before 1pm. Mostly cloudy, with a high near 40. Chance of precipitation is 30%.
Monday Night
Partly cloudy, with a low around 25.
Tuesday
Sunny, with a high near 38.
Tuesday Night
Partly cloudy, with a low around 24.
Wednesday
Mostly cloudy, with a high near 44.
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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:
4:18 pm EST Feb 18, 2026
Forecast Valid:
6pm EST Feb 18, 2026-6pm EST Feb 25, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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