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

Erin Strengthens to a Hurricane; Heavy Rainfall Possible in Puerto Rico and the Virgin Islands, the Upper Midwest, South Texas

Hurricane Erin may bring isolated flash and urban flooding, landslides or mudslides, and possible tropical storm conditions to Puerto Rico and the U.S. Virgin Islands this weekend. Scattered thunderstorms and heavy rainfall may bring areas of flooding this weekend over the Upper Midwest. A tropical disturbance will bring locally heavy rain and mainly urban flash flooding to far southern Texas. Read More >

Current conditions at

Brandywine Regional Airport (KOQN)

Lat: 39.99°NLon: 75.58°WElev: 465ft.

Fair

77°F

25°C

Humidity 74%
Wind Speed S 5 mph
Barometer 30.07 in
Dewpoint 68°F (20°C)
Visibility 10.00 mi
Heat Index79°F (26°C)
Last update 16 Aug 9:55 pm EDT
Extended Forecast for

2 Miles SSW Exton PA

  • Tonight

    Tonight: Mostly clear, with a low around 68. Calm wind.

    Low: 68 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 90. Calm wind becoming southwest around 5 mph in the morning.

    High: 90 °F

    Sunny

  • Sunday Night

    Sunday Night: A slight chance of showers and thunderstorms before 2am. Partly cloudy, with a low around 69. West wind around 5 mph becoming north after midnight. Chance of precipitation is 20%.

    Low: 69 °F

    Slight Chance
    T-storms

  • Monday

    Monday: A slight chance of showers after 2pm. Partly sunny, with a high near 77. Northeast wind around 10 mph. Chance of precipitation is 20%.

    High: 77 °F

    Partly Sunny
    then Slight
    Chance
    Showers

  • Monday Night

    Monday Night: A slight chance of showers before 2am. Mostly cloudy, with a low around 63. East wind around 5 mph. Chance of precipitation is 20%.

    Low: 63 °F

    Slight Chance
    Showers

  • Tuesday

    Tuesday: A slight chance of showers after 2pm. Partly sunny, with a high near 78. Chance of precipitation is 20%.

    High: 78 °F

    Partly Sunny
    then Slight
    Chance
    Showers

  • Tuesday Night

    Tuesday Night: A chance of showers after 8pm. Mostly cloudy, with a low around 63. Chance of precipitation is 30%.

    Low: 63 °F

    Chance
    Showers

  • Wednesday

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

    High: 80 °F

    Partly Sunny
    then Chance
    Showers

  • Wednesday Night

    Wednesday Night: A chance of showers before 2am. Mostly cloudy, with a low around 63. Chance of precipitation is 40%.

    Low: 63 °F

    Chance
    Showers

Detailed Forecast

Tonight
Mostly clear, with a low around 68. Calm wind.
Sunday
Sunny, with a high near 90. Calm wind becoming southwest around 5 mph in the morning.
Sunday Night
A slight chance of showers and thunderstorms before 2am. Partly cloudy, with a low around 69. West wind around 5 mph becoming north after midnight. Chance of precipitation is 20%.
Monday
A slight chance of showers after 2pm. Partly sunny, with a high near 77. Northeast wind around 10 mph. Chance of precipitation is 20%.
Monday Night
A slight chance of showers before 2am. Mostly cloudy, with a low around 63. East wind around 5 mph. Chance of precipitation is 20%.
Tuesday
A slight chance of showers after 2pm. Partly sunny, with a high near 78. Chance of precipitation is 20%.
Tuesday Night
A chance of showers after 8pm. Mostly cloudy, with a low around 63. Chance of precipitation is 30%.
Wednesday
A chance of showers after 2pm. Partly sunny, with a high near 80. Chance of precipitation is 40%.
Wednesday Night
A chance of showers before 2am. Mostly cloudy, with a low around 63. Chance of precipitation is 40%.
Thursday
Partly sunny, with a high near 78.
Thursday Night
Partly cloudy, with a low around 61.
Friday
Mostly sunny, with a high near 81.
Friday Night
Mostly clear, with a low around 61.
Saturday
Mostly sunny, with a high near 83.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SSW Exton PA
 40.01°N 75.64°W (Elev. 476 ft)
Last Update:
4:12 pm EDT Aug 16, 2025
Forecast Valid:
10pm EDT Aug 16, 2025-6pm EDT Aug 23, 2025
 
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