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

Philadelphia - Wings Field Airport (KLOM)

Lat: 40.14°NLon: 75.27°WElev: 282ft.

Mostly Cloudy

64°F

18°C

Humidity 89%
Wind Speed NW 3 mph
Barometer 30.10 in
Dewpoint 61°F (16°C)
Visibility 10.00 mi
Last update 21 May 12:30 am EDT
Extended Forecast for

Valley Forge PA

  • Overnight

    Overnight: A chance of showers. Mostly cloudy, with a low around 54. North wind around 5 mph. Chance of precipitation is 50%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 54 °F

    Chance
    Showers

  • Thursday

    Thursday: Showers and possibly a thunderstorm before 1pm, then showers likely. High near 63. Northeast wind around 10 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 63 °F

    Showers

  • Thursday Night

    Thursday Night: Cloudy, then gradually becoming partly cloudy, with a low around 51. East wind around 5 mph becoming calm.

    Low: 51 °F

    Decreasing
    Clouds

  • Friday

    Friday: A chance of showers after 2pm. Increasing clouds, with a high near 65. East wind around 10 mph. Chance of precipitation is 30%.

    High: 65 °F

    Mostly Sunny
    then Chance
    Showers

  • Friday Night

    Friday Night: Showers likely, mainly after 2am. Cloudy, with a low around 47. East wind around 5 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 47 °F

    Showers
    Likely

  • Saturday

    Saturday: Showers. High near 58. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    High: 58 °F

    Showers

  • Saturday Night

    Saturday Night: Showers. Low around 50. Chance of precipitation is 90%.

    Low: 50 °F

    Showers

  • Sunday

    Sunday: A chance of showers. Cloudy, with a high near 69. Chance of precipitation is 40%.

    High: 69 °F

    Chance
    Showers

  • Sunday Night

    Sunday Night: A chance of showers. Cloudy, with a low around 56. Chance of precipitation is 50%.

    Low: 56 °F

    Chance
    Showers

Detailed Forecast

Overnight
A chance of showers. Mostly cloudy, with a low around 54. North wind around 5 mph. Chance of precipitation is 50%. New precipitation amounts between a tenth and quarter of an inch possible.
Thursday
Showers and possibly a thunderstorm before 1pm, then showers likely. High near 63. Northeast wind around 10 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday Night
Cloudy, then gradually becoming partly cloudy, with a low around 51. East wind around 5 mph becoming calm.
Friday
A chance of showers after 2pm. Increasing clouds, with a high near 65. East wind around 10 mph. Chance of precipitation is 30%.
Friday Night
Showers likely, mainly after 2am. Cloudy, with a low around 47. East wind around 5 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Saturday
Showers. High near 58. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Saturday Night
Showers. Low around 50. Chance of precipitation is 90%.
Sunday
A chance of showers. Cloudy, with a high near 69. Chance of precipitation is 40%.
Sunday Night
A chance of showers. Cloudy, with a low around 56. Chance of precipitation is 50%.
Memorial Day
A chance of showers. Mostly cloudy, with a high near 76. Chance of precipitation is 40%.
Monday Night
A chance of showers. Mostly cloudy, with a low around 59. Chance of precipitation is 30%.
Tuesday
A chance of showers. Mostly cloudy, with a high near 80. Chance of precipitation is 30%.
Tuesday Night
Mostly cloudy, with a low around 60.
Wednesday
Partly sunny, with a high near 81.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Valley Forge PA
 40.1°N 75.45°W (Elev. 200 ft)
Last Update:
7:43 pm EDT May 20, 2026
Forecast Valid:
12am EDT May 21, 2026-6pm EDT May 27, 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