On July 7, 2015, NWS implemented changes to the icons depicted on all of its point-forecast pages. Changes include new icon images with increased clarity, 6-hour increments for rapidly changing weather and new color blocks to highlight forecast hazards.

A page depicting all of the new icon images can be accessed here: www.weather.gov/forecast-icons

Changes to the icons were based on analysis of 6,700 public comments collected in 2014. Also, many of these changes are based on the results of a research project led by the National Center for Atmospheric Research.

Users are encouraged to continue to provide comments regarding these changes via email at icons@noaa.gov. NWS will continue to analyze incoming feedback and refine the icons as necessary. Any substantial change to the icons will be facilitated through the NWS public comment/review process.

Critical Fire Weather Conditions from Great Basin to Northern Rockies

Parts of the western U.S. will return to dry and windy conditions on Wednesday which will lead to the potential for rapid fire spread. There are numerous ongoing wildfires in this part of the country. Red Flag Warnings are in effect for portions of several states including California, Nevada, Idaho, Wyoming and Montana.
Read More...

Hazardous Weather Conditions

Current conditions at

Pottstown, Pottstown Limerick Airport (KPTW)

Lat: 40.24°NLon: 75.55°WElev: 288ft.

Fog/Mist

67°F

19°C

Humidity 97%
Wind Speed Calm
Barometer 30.07 in (1017.8 mb)
Dewpoint 66°F (19°C)
Visibility 4.00 mi
Last update 2 Sep 7:54 am EDT
Extended Forecast for

Harleysville PA

  • Today

    Today: Patchy fog before 11am.  Otherwise, mostly sunny, with a high near 90. Calm wind becoming northwest around 6 mph in the morning.

    Patchy Fog
    then Mostly
    Sunny

    High: 90 °F

  • Tonight

    Tonight: Patchy fog after 2am.  Otherwise, partly cloudy, with a low around 68. Light and variable wind.

    Partly Cloudy
    then Patchy
    Fog

    Low: 68 °F

  • Thursday

    Thursday: Patchy fog before 8am.  Otherwise, mostly sunny, with a high near 91. Calm wind becoming northwest around 6 mph in the afternoon.

    Patchy Fog
    then Mostly
    Sunny

    High: 91 °F

  • Thursday
    Night

    Thursday Night: A slight chance of showers and thunderstorms before 2am.  Mostly cloudy, with a low around 69. North wind 3 to 5 mph.  Chance of precipitation is 20%.

    Slight Chance
    T-storms

    Low: 69 °F

  • Friday

    Friday: A chance of showers between 8am and noon, then a chance of showers and thunderstorms after noon.  Partly sunny, with a high near 83. East wind 5 to 7 mph.  Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Chance
    Showers then
    Chance
    T-storms

    High: 83 °F

  • Friday
    Night

    Friday Night: Partly cloudy, with a low around 62.

    Partly Cloudy

    Low: 62 °F

  • Saturday

    Saturday: Sunny, with a high near 83.

    Sunny

    High: 83 °F

  • Saturday
    Night

    Saturday Night: Mostly clear, with a low around 59.

    Mostly Clear

    Low: 59 °F

  • Sunday

    Sunday: Sunny, with a high near 87.

    Sunny

    High: 87 °F

Detailed Forecast

Today
Patchy fog before 11am. Otherwise, mostly sunny, with a high near 90. Calm wind becoming northwest around 6 mph in the morning.
Tonight
Patchy fog after 2am. Otherwise, partly cloudy, with a low around 68. Light and variable wind.
Thursday
Patchy fog before 8am. Otherwise, mostly sunny, with a high near 91. Calm wind becoming northwest around 6 mph in the afternoon.
Thursday Night
A slight chance of showers and thunderstorms before 2am. Mostly cloudy, with a low around 69. North wind 3 to 5 mph. Chance of precipitation is 20%.
Friday
A chance of showers between 8am and noon, then a chance of showers and thunderstorms after noon. Partly sunny, with a high near 83. East wind 5 to 7 mph. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Friday Night
Partly cloudy, with a low around 62.
Saturday
Sunny, with a high near 83.
Saturday Night
Mostly clear, with a low around 59.
Sunday
Sunny, with a high near 87.
Sunday Night
Mostly clear, with a low around 62.
Labor Day
Sunny, with a high near 89.
Monday Night
Partly cloudy, with a low around 65.
Tuesday
Mostly sunny, with a high near 90.
  Click Map For Forecast
Point Forecast:
Harleysville PA
 40.29°N 75.38°W (Elev. 299 ft)
8:12 am EDT Sep 2, 2015
8am EDT Sep 2, 2015-6pm EDT Sep 8, 2015
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Graph

National Digital Forecast Database