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

Hazardous Weather Conditions

Current conditions at

Brandywine Regional Airport (KOQN)

Lat: 39.99°NLon: 75.58°WElev: 465ft.

Fair

22°C

72°F

Humidity 88%
Wind Speed W 11 km/h
Barometer 30.10 in
Dewpoint 20°C (68°F)
Visibility 16 km
Last update 22 Jun 5:35 am EDT
Extended Forecast for

Newtown Square PA

Extreme Heat Warning June 22, 08:00am until June 25, 08:00pm
Click here for hazard details and duration
Extreme Heat Warning

  • Today

    Today: Mostly sunny, with a high near 34. Heat index values as high as 38. West wind 10 to 15 km/h.

    High: 34 °C

    Mostly Sunny

  • Tonight

    Tonight: A slight chance of showers and thunderstorms before 9pm. Mostly clear, with a low around 25. West wind around 10 km/h. Chance of precipitation is 20%.

    Low: 25 °C

    Slight Chance
    T-storms then
    Mostly Clear

  • Monday

    Monday: Sunny and hot, with a high near 37. Heat index values as high as 42. Northwest wind around 10 km/h.

    High: 37 °C

    Hot

  • Monday Night

    Monday Night: Mostly clear, with a low around 25. West wind 5 to 10 km/h.

    Low: 25 °C

    Mostly Clear

  • Tuesday

    Tuesday: Sunny and hot, with a high near 37. Northwest wind 10 to 15 km/h.

    High: 37 °C

    Hot

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 26.

    Low: 26 °C

    Mostly Clear

  • Wednesday

    Wednesday: A chance of showers and thunderstorms after 2pm. Sunny and hot, with a high near 36. Chance of precipitation is 30%.

    High: 36 °C

    Sunny then
    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 23. Chance of precipitation is 30%.

    Low: 23 °C

    Chance
    T-storms then
    Partly Cloudy

  • Thursday

    Thursday: A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 33. Chance of precipitation is 50%.

    High: 33 °C

    Mostly Sunny
    then Chance
    T-storms

Detailed Forecast

Today
Mostly sunny, with a high near 34. Heat index values as high as 38. West wind 10 to 15 km/h.
Tonight
A slight chance of showers and thunderstorms before 9pm. Mostly clear, with a low around 25. West wind around 10 km/h. Chance of precipitation is 20%.
Monday
Sunny and hot, with a high near 37. Heat index values as high as 42. Northwest wind around 10 km/h.
Monday Night
Mostly clear, with a low around 25. West wind 5 to 10 km/h.
Tuesday
Sunny and hot, with a high near 37. Northwest wind 10 to 15 km/h.
Tuesday Night
Mostly clear, with a low around 26.
Wednesday
A chance of showers and thunderstorms after 2pm. Sunny and hot, with a high near 36. Chance of precipitation is 30%.
Wednesday Night
A chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 23. Chance of precipitation is 30%.
Thursday
A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 33. Chance of precipitation is 50%.
Thursday Night
A chance of showers and thunderstorms before 8pm, then a chance of showers between 8pm and 2am. Mostly cloudy, with a low around 22. Chance of precipitation is 30%.
Friday
A chance of showers. Partly sunny, with a high near 29. Chance of precipitation is 40%.
Friday Night
A chance of showers. Mostly cloudy, with a low around 20. Chance of precipitation is 50%.
Saturday
A chance of showers. Partly sunny, with a high near 27. Chance of precipitation is 40%.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Newtown Square PA
 39.99°N 75.44°W (Elev. 299 m)
Last Update:
4:11 am EDT Jun 22, 2025
Forecast Valid:
5am EDT Jun 22, 2025-6pm EDT Jun 28, 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