National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Briefing for Impacts from Hurricane Erin through Friday

Hurricane Erin is expected to bring several coastal and marine hazards to the coasts of New Jersey and Delaware through Friday. Widespread coastal flooding, high surf, high risk of rip currents, beach erosion, and dangerous marine conditions are forecast. View this briefing for details on these threats. Read More >

Current conditions at

Brandywine Regional Airport (KOQN)

Lat: 39.99°NLon: 75.58°WElev: 465ft.

Overcast

64°F

18°C

Humidity 83%
Wind Speed NE 8 G 17 mph
Barometer 29.94 in
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Last update 21 Aug 1:35 pm EDT
Extended Forecast for

Westtown PA

  • This Afternoon

    This Afternoon: Mostly cloudy, with a high near 71. Northeast wind around 15 mph, with gusts as high as 30 mph.

    High: 71 °F

    Mostly Cloudy

  • Tonight

    Tonight: Mostly cloudy during the early evening, then gradual clearing, with a low around 57. North wind around 10 mph, with gusts as high as 20 mph.

    Low: 57 °F

    Gradual
    Clearing

  • Friday

    Friday: Sunny, with a high near 80. North wind 5 to 10 mph.

    High: 80 °F

    Sunny

  • Friday Night

    Friday Night: Clear, with a low around 58. Calm wind.

    Low: 58 °F

    Clear

  • Saturday

    Saturday: Sunny, with a high near 82. Calm wind becoming south around 5 mph in the morning.

    High: 82 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 64.

    Low: 64 °F

    Mostly Clear

  • Sunday

    Sunday: A chance of showers. Mostly cloudy, with a high near 80. Chance of precipitation is 50%.

    High: 80 °F

    Chance
    Showers

  • Sunday Night

    Sunday Night: Showers likely, mainly before 2am. Mostly cloudy, with a low around 65. Chance of precipitation is 60%.

    Low: 65 °F

    Showers
    Likely

  • Monday

    Monday: A chance of showers, with thunderstorms also possible after 2pm. Partly sunny, with a high near 80. Chance of precipitation is 40%.

    High: 80 °F

    Chance
    Showers then
    Chance
    T-storms

Detailed Forecast

This Afternoon
Mostly cloudy, with a high near 71. Northeast wind around 15 mph, with gusts as high as 30 mph.
Tonight
Mostly cloudy during the early evening, then gradual clearing, with a low around 57. North wind around 10 mph, with gusts as high as 20 mph.
Friday
Sunny, with a high near 80. North wind 5 to 10 mph.
Friday Night
Clear, with a low around 58. Calm wind.
Saturday
Sunny, with a high near 82. Calm wind becoming south around 5 mph in the morning.
Saturday Night
Mostly clear, with a low around 64.
Sunday
A chance of showers. Mostly cloudy, with a high near 80. Chance of precipitation is 50%.
Sunday Night
Showers likely, mainly before 2am. Mostly cloudy, with a low around 65. Chance of precipitation is 60%.
Monday
A chance of showers, with thunderstorms also possible after 2pm. Partly sunny, with a high near 80. Chance of precipitation is 40%.
Monday Night
A chance of thunderstorms before 8pm. Partly cloudy, with a low around 58. Chance of precipitation is 30%.
Tuesday
Sunny, with a high near 75.
Tuesday Night
Mostly clear, with a low around 55.
Wednesday
Sunny, with a high near 74.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Westtown PA
 39.94°N 75.57°W (Elev. 299 ft)
Last Update:
4:11 am EDT Aug 21, 2025
Forecast Valid:
2pm EDT Aug 21, 2025-6pm EDT Aug 27, 2025
 
Forecast Discussion
 
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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation