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.

Fair

35°F

2°C

Humidity 76%
Wind Speed NE 3 mph
Barometer 29.80 in (1008.9 mb)
Dewpoint 28°F (-2°C)
Visibility 10.00 mi
Last update 14 Mar 12:54 am EDT
Extended Forecast for

Valley Forge PA

  • Overnight

    Overnight: Mostly clear, with a low around 37. Southwest wind 10 to 15 mph, with gusts as high as 30 mph.

    Low: 37 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 51. Breezy, with a west wind 15 to 20 mph, with gusts as high as 40 mph.

    High: 51 °F

    Sunny and
    Breezy

  • Saturday Night

    Saturday Night: Increasing clouds, with a low around 35. West wind around 5 mph becoming calm after midnight.

    Low: 35 °F

    Increasing
    Clouds

  • Sunday

    Sunday: Cloudy, with a high near 53. Southeast wind 5 to 15 mph, with gusts as high as 30 mph.

    High: 53 °F

    Cloudy

  • Sunday Night

    Sunday Night: Rain, mainly after 2am. Low around 47. Southeast wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 100%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 47 °F

    Chance Rain
    then Rain

  • Monday

    Monday: Showers, with thunderstorms also possible after 11am. High near 66. Breezy. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.

    High: 66 °F

    Showers and
    Breezy

  • Monday Night

    Monday Night: Rain showers before 2am, then a chance of rain showers, snow showers, and freezing rain. Some thunder is also possible. Low around 32. Breezy. Chance of precipitation is 80%.

    Low: 32 °F

    Breezy.
    Showers then
    Wintry Mix

  • Tuesday

    Tuesday: A chance of rain showers, snow showers, and freezing rain before 8am. Mostly cloudy, with a high near 38. Breezy. Chance of precipitation is 30%.

    High: 38 °F

    Chance Wintry
    Mix then
    Mostly Cloudy
    and Breezy

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 22.

    Low: 22 °F

    Partly Cloudy

Detailed Forecast

Overnight
Mostly clear, with a low around 37. Southwest wind 10 to 15 mph, with gusts as high as 30 mph.
Saturday
Sunny, with a high near 51. Breezy, with a west wind 15 to 20 mph, with gusts as high as 40 mph.
Saturday Night
Increasing clouds, with a low around 35. West wind around 5 mph becoming calm after midnight.
Sunday
Cloudy, with a high near 53. Southeast wind 5 to 15 mph, with gusts as high as 30 mph.
Sunday Night
Rain, mainly after 2am. Low around 47. Southeast wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 100%. New precipitation amounts between a tenth and quarter of an inch possible.
Monday
Showers, with thunderstorms also possible after 11am. High near 66. Breezy. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.
Monday Night
Rain showers before 2am, then a chance of rain showers, snow showers, and freezing rain. Some thunder is also possible. Low around 32. Breezy. Chance of precipitation is 80%.
Tuesday
A chance of rain showers, snow showers, and freezing rain before 8am. Mostly cloudy, with a high near 38. Breezy. Chance of precipitation is 30%.
Tuesday Night
Partly cloudy, with a low around 22.
Wednesday
Partly sunny, with a high near 40.
Wednesday Night
Cloudy, with a low around 28.
Thursday
Mostly cloudy, with a high near 49.
Thursday Night
Mostly cloudy, with a low around 34.
Friday
Mostly cloudy, with a high near 50.
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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:
9:46 pm EDT Mar 13, 2026
Forecast Valid:
1am EDT Mar 14, 2026-6pm EDT Mar 20, 2026
 
Forecast Discussion
 
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Additional Resources

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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