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

Hot in Parts of the West; Cold Blast Coming to the Central U.S.

Hot to extremely hot temperatures are in place much of this week across parts of California and the interior Northwest U.S. A blast of cold air will drop across the central and eastern U.S. later this week bringing below to well below normal temperatures. Read More >

Current conditions at

Brandywine Regional Airport (KOQN)

Lat: 39.99°NLon: 75.58°WElev: 465ft.

Fair

79°F

26°C

Humidity 32%
Wind Speed E 12 G 17 mph
Barometer 30.20 in
Dewpoint 46°F (8°C)
Visibility 10.00 mi
Heat Index79°F (26°C)
Last update 1 Sep 4:35 pm EDT
Extended Forecast for

Devon PA

  • Tonight

    Tonight: Mostly clear, with a low around 54. East wind 5 to 10 mph becoming light and variable in the evening.

    Low: 54 °F

    Mostly Clear

  • Tuesday

    Tuesday: Increasing clouds, with a high near 78. Northeast wind around 5 mph.

    High: 78 °F

    Increasing
    Clouds

  • Tuesday Night

    Tuesday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around 56. Southeast wind around 5 mph becoming calm in the evening.

    Low: 56 °F

    Decreasing
    Clouds

  • Wednesday

    Wednesday: Mostly sunny, with a high near 79. Calm wind becoming south around 5 mph.

    High: 79 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 59. South wind around 5 mph.

    Low: 59 °F

    Partly Cloudy

  • Thursday

    Thursday: A slight chance of showers after 2pm. Mostly sunny, with a high near 82. Chance of precipitation is 20%.

    High: 82 °F

    Mostly Sunny
    then Slight
    Chance
    Showers

  • Thursday Night

    Thursday Night: A chance of showers after 8pm. Mostly cloudy, with a low around 63. Chance of precipitation is 50%.

    Low: 63 °F

    Chance
    Showers

  • Friday

    Friday: A chance of showers after 2pm. Partly sunny, with a high near 81. Chance of precipitation is 30%.

    High: 81 °F

    Mostly Sunny
    then Chance
    Showers

  • Friday Night

    Friday Night: A chance of showers before 8pm. Partly cloudy, with a low around 63. Chance of precipitation is 30%.

    Low: 63 °F

    Chance
    Showers then
    Partly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 54. East wind 5 to 10 mph becoming light and variable in the evening.
Tuesday
Increasing clouds, with a high near 78. Northeast wind around 5 mph.
Tuesday Night
Mostly cloudy, then gradually becoming mostly clear, with a low around 56. Southeast wind around 5 mph becoming calm in the evening.
Wednesday
Mostly sunny, with a high near 79. Calm wind becoming south around 5 mph.
Wednesday Night
Partly cloudy, with a low around 59. South wind around 5 mph.
Thursday
A slight chance of showers after 2pm. Mostly sunny, with a high near 82. Chance of precipitation is 20%.
Thursday Night
A chance of showers after 8pm. Mostly cloudy, with a low around 63. Chance of precipitation is 50%.
Friday
A chance of showers after 2pm. Partly sunny, with a high near 81. Chance of precipitation is 30%.
Friday Night
A chance of showers before 8pm. Partly cloudy, with a low around 63. Chance of precipitation is 30%.
Saturday
Mostly sunny, with a high near 83.
Saturday Night
A chance of showers. Mostly cloudy, with a low around 58. Chance of precipitation is 30%.
Sunday
Mostly sunny, with a high near 74.
Sunday Night
Partly cloudy, with a low around 52.
Monday
Mostly sunny, with a high near 74.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Devon PA
 40.03°N 75.4°W (Elev. 397 ft)
Last Update:
4:10 pm EDT Sep 1, 2025
Forecast Valid:
4pm EDT Sep 1, 2025-6pm EDT Sep 8, 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