Thunderstorms and Heavy Rains in the Appalachians

Multiple rounds of moderate to locally heavy rain will impact portions of the Appalachians and Mid-Atlantic, which may lead to flash flooding concerns. Thunderstorms with isolated severe wind gusts will be possible this afternoon from parts of the Southeast into the southern and central Appalachians. A multi-day heavy rain will pose a flash flood threat in New Mexico beginning Tuesday. Read More >

Current conditions at

Philadelphia, Philadelphia International Airport (KPHL)

Lat: 39.87°NLon: 75.23°WElev: 7ft.

Mostly Cloudy

66°F

19°C

Humidity 81%
Wind Speed NE 14 G 21 mph
Barometer 30.04 in (1017.0 mb)
Dewpoint 60°F (16°C)
Visibility 10.00 mi
Last update 21 Sep 7:54 am EDT
Extended Forecast for

Westtown PA

  • Today

    Today: Partly sunny, with a high near 69. Northeast wind 5 to 10 mph.

    High: 69 °F

    Partly Sunny

  • Tonight

    Tonight: Showers, mainly after 1am.  Low around 54. Northeast wind 5 to 10 mph.  Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 54 °F

    Chance
    Showers then
    Showers

  • Tuesday

    Tuesday: Showers, mainly before 10am.  High near 60. Northeast wind around 10 mph, with gusts as high as 20 mph.  Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 60 °F

    Showers then
    Chance
    Showers

  • Tuesday Night

    Tuesday Night: A chance of showers, mainly after 2am.  Mostly cloudy, with a low around 51. Northeast wind around 10 mph, with gusts as high as 20 mph.  Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 51 °F

    Chance
    Showers

  • Wednesday

    Wednesday: A chance of showers, mainly before 8am.  Mostly cloudy, with a high near 62. Northeast wind around 15 mph, with gusts as high as 25 mph.  Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    High: 62 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 51.

    Low: 51 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly cloudy, with a high near 61.

    High: 61 °F

    Mostly Cloudy

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 49.

    Low: 49 °F

    Mostly Cloudy

  • Friday

    Friday: A chance of showers after 2pm.  Partly sunny, with a high near 62. Chance of precipitation is 40%.

    High: 62 °F

    Partly Sunny
    then Chance
    Showers

Detailed Forecast

Today
Partly sunny, with a high near 69. Northeast wind 5 to 10 mph.
Tonight
Showers, mainly after 1am. Low around 54. Northeast wind 5 to 10 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Tuesday
Showers, mainly before 10am. High near 60. Northeast wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Tuesday Night
A chance of showers, mainly after 2am. Mostly cloudy, with a low around 51. Northeast wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday
A chance of showers, mainly before 8am. Mostly cloudy, with a high near 62. Northeast wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday Night
Mostly cloudy, with a low around 51.
Thursday
Mostly cloudy, with a high near 61.
Thursday Night
Mostly cloudy, with a low around 49.
Friday
A chance of showers after 2pm. Partly sunny, with a high near 62. Chance of precipitation is 40%.
Friday Night
A chance of showers. Mostly cloudy, with a low around 51. Chance of precipitation is 40%.
Saturday
A chance of showers. Partly sunny, with a high near 64. Chance of precipitation is 30%.
Saturday Night
Mostly cloudy, with a low around 52.
Sunday
Partly sunny, with a high near 67.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
Westtown PA
 39.91°N 75.54°W (Elev. 397 ft)
4:09 am EDT Sep 21, 2026
8am EDT Sep 21, 2026-6pm EDT Sep 27, 2026
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database