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.

Fog/Mist

44°F

7°C

Humidity 100%
Wind Speed Calm
Barometer 30.26 in (1024.7 mb)
Dewpoint 44°F (7°C)
Visibility 6.00 mi
Last update 4 Mar 9:54 pm EST
Extended Forecast for

Harleysville PA

  • Tonight

    Tonight: Rain likely, mainly after 5am. Patchy fog. Otherwise, cloudy, with a low around 39. Calm wind. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 39 °F

    Rain Likely
    and Patchy
    Fog

  • Thursday

    Thursday: Rain. Areas of fog before noon. High near 48. Calm wind becoming east around 5 mph in the afternoon. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    High: 48 °F

    Rain and
    Areas Fog

  • Thursday Night

    Thursday Night: Rain, mainly after 7pm. Low around 37. East wind around 5 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 37 °F

    Rain

  • Friday

    Friday: A slight chance of showers before 1pm. Cloudy, with a high near 45. Northeast wind around 5 mph. Chance of precipitation is 20%.

    High: 45 °F

    Slight Chance
    Showers

  • Friday Night

    Friday Night: A chance of showers, mainly after 1am. Cloudy, with a low around 37. East wind around 5 mph becoming calm. Chance of precipitation is 30%.

    Low: 37 °F

    Chance
    Showers

  • Saturday

    Saturday: A slight chance of showers after 1pm. Mostly cloudy, with a high near 62. Chance of precipitation is 20%.

    High: 62 °F

    Cloudy then
    Slight Chance
    Showers

  • Saturday Night

    Saturday Night: Showers likely, mainly before 1am. Mostly cloudy, with a low around 48. Chance of precipitation is 70%.

    Low: 48 °F

    Showers
    Likely

  • Sunday

    Sunday: Partly sunny, with a high near 63.

    High: 63 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 43.

    Low: 43 °F

    Partly Cloudy

Detailed Forecast

Tonight
Rain likely, mainly after 5am. Patchy fog. Otherwise, cloudy, with a low around 39. Calm wind. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Thursday
Rain. Areas of fog before noon. High near 48. Calm wind becoming east around 5 mph in the afternoon. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Thursday Night
Rain, mainly after 7pm. Low around 37. East wind around 5 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Friday
A slight chance of showers before 1pm. Cloudy, with a high near 45. Northeast wind around 5 mph. Chance of precipitation is 20%.
Friday Night
A chance of showers, mainly after 1am. Cloudy, with a low around 37. East wind around 5 mph becoming calm. Chance of precipitation is 30%.
Saturday
A slight chance of showers after 1pm. Mostly cloudy, with a high near 62. Chance of precipitation is 20%.
Saturday Night
Showers likely, mainly before 1am. Mostly cloudy, with a low around 48. Chance of precipitation is 70%.
Sunday
Partly sunny, with a high near 63.
Sunday Night
Partly cloudy, with a low around 43.
Monday
Sunny, with a high near 62.
Monday Night
Partly cloudy, with a low around 47.
Tuesday
Mostly sunny, with a high near 73.
Tuesday Night
A chance of showers. Partly cloudy, with a low around 57. Chance of precipitation is 30%.
Wednesday
A chance of showers. Partly sunny, with a high near 73. Chance of precipitation is 40%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Harleysville PA
 40.27°N 75.39°W (Elev. 299 ft)
Last Update:
4:10 pm EST Mar 4, 2026
Forecast Valid:
9pm EST Mar 4, 2026-6pm EDT Mar 11, 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