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

Dangerous Heat and Possible Flooding

Dangerous heat will persist across the Southwest U.S. through Saturday with daytime highs of 110-115°F. Extreme Heat Warnings remain in effect. Dangerous heat will build across the southern Plains again beginning this weekend. Heavy to excessive rain over the Carolinas Friday may lead to isolated areas of flash flooding. Read More >

Current conditions at

Philadelphia, Philadelphia International Airport (KPHL)

Lat: 39.87°NLon: 75.23°WElev: 7ft.

Mostly Cloudy

71°F

22°C

Humidity 87%
Wind Speed NE 3 mph
Barometer 29.96 in (1014.5 mb)
Dewpoint 67°F (19°C)
Visibility 10.00 mi
Last update 28 Aug 2:54 am EDT
Extended Forecast for

Newtown Square PA

  • Overnight

    Overnight: Mostly cloudy, with a low around 68. Calm wind.

    Low: 68 °F

    Mostly Cloudy

  • Friday

    Friday: A chance of showers and thunderstorms, mainly after 5pm. Partly sunny, with a high near 84. Calm wind becoming north around 5 mph. Chance of precipitation is 30%.

    High: 84 °F

    Partly Sunny
    then Chance
    T-storms

  • Friday Night

    Friday Night: Cloudy, then gradually becoming partly cloudy, with a low around 64. Calm wind becoming north around 5 mph.

    Low: 64 °F

    Decreasing
    Clouds

  • Saturday

    Saturday: Mostly sunny, with a high near 84. North wind around 5 mph.

    High: 84 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 65. Calm wind.

    Low: 65 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 86.

    High: 86 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 70.

    Low: 70 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 88.

    High: 88 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 71.

    Low: 71 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Mostly cloudy, with a low around 68. Calm wind.
Friday
A chance of showers and thunderstorms, mainly after 5pm. Partly sunny, with a high near 84. Calm wind becoming north around 5 mph. Chance of precipitation is 30%.
Friday Night
Cloudy, then gradually becoming partly cloudy, with a low around 64. Calm wind becoming north around 5 mph.
Saturday
Mostly sunny, with a high near 84. North wind around 5 mph.
Saturday Night
Mostly clear, with a low around 65. Calm wind.
Sunday
Mostly sunny, with a high near 86.
Sunday Night
Partly cloudy, with a low around 70.
Monday
Mostly sunny, with a high near 88.
Monday Night
Mostly cloudy, with a low around 71.
Tuesday
Partly sunny, with a high near 89.
Tuesday Night
A chance of showers. Mostly cloudy, with a low around 72. Chance of precipitation is 40%.
Wednesday
A chance of showers. Partly sunny, with a high near 88. Chance of precipitation is 40%.
Wednesday Night
A chance of showers. Mostly cloudy, with a low around 70. Chance of precipitation is 40%.
Thursday
Partly sunny, with a high near 85.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Newtown Square PA
 39.97°N 75.44°W (Elev. 308 ft)
Last Update:
4:08 pm EDT Aug 27, 2026
Forecast Valid:
3am EDT Aug 28, 2026-6pm EDT Sep 3, 2026
 
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