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.

Tropics remain active

The National Hurricane Center has discontinued advisories for Erica as yet another tropical system, Fred, forms in the eastern Atlantic. Remnants of Erika could still produce heavy rainfall and gusty winds across southern and central Florida on Sunday. Meanwhile, the Eastern Pacific remains active, with advisories continuing to be issued for two hurricanes, Jimena and Ignacio.
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Current conditions at

Pottstown, Pottstown Limerick Airport (KPTW)

Lat: 40.24°NLon: 75.55°WElev: 288ft.

Mostly Cloudy

87°F

31°C

Humidity 50%
Wind Speed S 7 mph
Barometer 30.06 in (1017.4 mb)
Dewpoint 66°F (19°C)
Visibility 10.00 mi
Heat Index89°F (32°C)
Last update 30 Aug 3:54 pm EDT
Extended Forecast for

Downingtown PA

  • Tonight

    Tonight: Mostly cloudy, with a low around 68. Southwest wind 5 to 8 mph becoming calm  after midnight.

    Mostly Cloudy

    Low: 68 °F

  • Monday

    Monday: Partly sunny, with a high near 88. Light west wind increasing to 6 to 11 mph in the morning.

    Partly Sunny

    High: 88 °F

  • Monday
    Night

    Monday Night: Mostly clear, with a low around 67. Southwest wind around 6 mph becoming calm  in the evening.

    Mostly Clear

    Low: 67 °F

  • Tuesday

    Tuesday: Sunny, with a high near 91. Calm wind becoming northwest around 5 mph in the afternoon.

    Sunny

    High: 91 °F

  • Tuesday
    Night

    Tuesday Night: Patchy fog after 5am.  Otherwise, mostly clear, with a low around 68. Calm wind.

    Mostly Clear
    then Patchy
    Fog

    Low: 68 °F

  • Wednesday

    Wednesday: A slight chance of showers and thunderstorms after noon.  Mostly sunny, with a high near 92. Chance of precipitation is 20%.

    Sunny then
    Slight Chance
    T-storms

    High: 92 °F

  • Wednesday
    Night

    Wednesday Night: Partly cloudy, with a low around 70.

    Partly Cloudy

    Low: 70 °F

  • Thursday

    Thursday: Partly sunny, with a high near 92.

    Partly Sunny

    High: 92 °F

  • Thursday
    Night

    Thursday Night: Patchy fog after 5am.  Otherwise, mostly cloudy, with a low around 67.

    Mostly Cloudy
    then Patchy
    Fog

    Low: 67 °F

Detailed Forecast

Tonight
Mostly cloudy, with a low around 68. Southwest wind 5 to 8 mph becoming calm after midnight.
Monday
Partly sunny, with a high near 88. Light west wind increasing to 6 to 11 mph in the morning.
Monday Night
Mostly clear, with a low around 67. Southwest wind around 6 mph becoming calm in the evening.
Tuesday
Sunny, with a high near 91. Calm wind becoming northwest around 5 mph in the afternoon.
Tuesday Night
Patchy fog after 5am. Otherwise, mostly clear, with a low around 68. Calm wind.
Wednesday
A slight chance of showers and thunderstorms after noon. Mostly sunny, with a high near 92. Chance of precipitation is 20%.
Wednesday Night
Partly cloudy, with a low around 70.
Thursday
Partly sunny, with a high near 92.
Thursday Night
Patchy fog after 5am. Otherwise, mostly cloudy, with a low around 67.
Friday
A chance of showers and thunderstorms after noon. Mostly sunny, with a high near 90. Chance of precipitation is 30%.
Friday Night
Partly cloudy, with a low around 65.
Saturday
A chance of showers and thunderstorms. Mostly sunny, with a high near 87. Chance of precipitation is 30%.
Saturday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 63. Chance of precipitation is 30%.
Sunday
Partly sunny, with a high near 86.
  Click Map For Forecast
Point Forecast:
Downingtown PA
 40°N 75.73°W (Elev. 364 ft)
3:37 pm EDT Aug 30, 2015
4pm EDT Aug 30, 2015-6pm EDT Sep 6, 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