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Hazardous Weather Conditions

Current conditions at

Pottstown, Pottstown Limerick Airport (KPTW)

Lat: 40.24°NLon: 75.55°WElev: 288ft.

Fair

59°F

15°C

Humidity 100%
Wind Speed Calm
Barometer 30.15 in (1020.5 mb)
Dewpoint 59°F (15°C)
Visibility 7.00 mi
Last update 26 May 6:54 am EDT
Extended Forecast for

Valley Forge PA

Dense Fog Advisory May 26, 07:20am until May 26, 08:00am
Click here for hazard details and duration
...
  •  
    Dense Fog Advisory May 26, 07:20am until May 26, 08:00am

    NOW until 8:00am Tue

    Dense Fog Advisory

  • Today

    High: 81 °F

    Partly Sunny

  • Tonight

    Tonight: A chance of showers after 2am. Patchy fog after 5am. Otherwise, mostly cloudy, with a low around 63. South wind around 5 mph becoming calm in the evening. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 63 °F

    Mostly Cloudy
    then Chance
    Showers and
    Patchy Fog

  • Wednesday

    Wednesday: Showers likely before 10am, then a chance of showers after 11am. Patchy fog before 8am. Otherwise, mostly cloudy, with a high near 80. Calm wind becoming west around 5 mph in the afternoon. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

    High: 80 °F

    Showers
    Likely and
    Patchy Fog
    then Chance
    Showers

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 62. Northwest wind around 5 mph.

    Low: 62 °F

    Mostly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 77. North wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 77 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 54.

    Low: 54 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 75.

    High: 75 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 53.

    Low: 53 °F

    Mostly Clear

Detailed Forecast

Today
Partly sunny, with a high near 81. Calm wind becoming east around 5 mph.
Tonight
A chance of showers after 2am. Patchy fog after 5am. Otherwise, mostly cloudy, with a low around 63. South wind around 5 mph becoming calm in the evening. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday
Showers likely before 10am, then a chance of showers after 11am. Patchy fog before 8am. Otherwise, mostly cloudy, with a high near 80. Calm wind becoming west around 5 mph in the afternoon. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday Night
Mostly cloudy, with a low around 62. Northwest wind around 5 mph.
Thursday
Sunny, with a high near 77. North wind 5 to 10 mph, with gusts as high as 20 mph.
Thursday Night
Mostly clear, with a low around 54.
Friday
Sunny, with a high near 75.
Friday Night
Mostly clear, with a low around 53.
Saturday
Sunny, with a high near 72.
Saturday Night
Partly cloudy, with a low around 51.
Sunday
Mostly sunny, with a high near 72.
Sunday Night
Partly cloudy, with a low around 54.
Monday
Sunny, with a high near 75.
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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 26, 2026
Forecast Valid:
7am EDT May 26, 2026-6pm EDT Jun 1, 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