Dangerous Heat over the South-Central and Southwest U.S. Through Next Week

Dangerous heat persists across the Desert Southwest through this weekend and across the Southern Plains and Lower Mississippi Valley through at least the middle of next week. Numerous daily record high temperatures are expected through at least Tuesday for much of Texas and Oklahoma as well as portions of Louisiana, New Mexico, and Arizona. Read More >

Current conditions at

Philadelphia - Wings Field Airport (KLOM)

Lat: 40.14°NLon: 75.27°WElev: 282ft.

Fair

69°F

21°C

Humidity 91%
Wind Speed E 3 mph
Barometer 30.07 in
Dewpoint 66°F (19°C)
Visibility 10.00 mi
Last update 22 Aug 1:15 am EDT
Extended Forecast for

Gwynedd Valley PA

  • Overnight

    Overnight: Mostly cloudy, with a low around 64. Calm wind.

    Low: 64 °F

    Mostly Cloudy

  • Saturday

    Saturday: A chance of showers, with thunderstorms also possible after 5pm.  Mostly cloudy, with a high near 78. East wind around 5 mph.  Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 78 °F

    Chance
    Showers

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms before 2am, then a chance of showers between 2am and 5am, then a slight chance of showers and thunderstorms after 5am.  Mostly cloudy, with a low around 65. East wind around 5 mph becoming calm  in the evening.  Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 65 °F

    Chance
    Showers

  • Sunday

    Sunday: A chance of showers and thunderstorms, mainly between 11am and 2pm.  Mostly cloudy, then gradually becoming sunny, with a high near 82. Southwest wind 5 to 10 mph.  Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 82 °F

    Chance
    Showers

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 61. West wind around 5 mph.

    Low: 61 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 80.

    High: 80 °F

    Sunny

  • Monday Night

    Monday Night: Clear, with a low around 59.

    Low: 59 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 80.

    High: 80 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 61.

    Low: 61 °F

    Mostly Clear

Detailed Forecast

Overnight
Mostly cloudy, with a low around 64. Calm wind.
Saturday
A chance of showers, with thunderstorms also possible after 5pm. Mostly cloudy, with a high near 78. East wind around 5 mph. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday Night
A chance of showers and thunderstorms before 2am, then a chance of showers between 2am and 5am, then a slight chance of showers and thunderstorms after 5am. Mostly cloudy, with a low around 65. East wind around 5 mph becoming calm in the evening. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunday
A chance of showers and thunderstorms, mainly between 11am and 2pm. Mostly cloudy, then gradually becoming sunny, with a high near 82. Southwest wind 5 to 10 mph. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunday Night
Mostly clear, with a low around 61. West wind around 5 mph.
Monday
Sunny, with a high near 80.
Monday Night
Clear, with a low around 59.
Tuesday
Sunny, with a high near 80.
Tuesday Night
Mostly clear, with a low around 61.
Wednesday
Mostly sunny, with a high near 84.
Wednesday Night
A chance of showers. Mostly cloudy, with a low around 66. Chance of precipitation is 40%.
Thursday
A chance of showers. Mostly cloudy, with a high near 84. Chance of precipitation is 50%.
Thursday Night
A chance of showers. Mostly cloudy, with a low around 67. Chance of precipitation is 40%.
Friday
Partly sunny, with a high near 85.
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ABOUT THIS FORECAST

 
Point Forecast:
Gwynedd Valley PA
 40.17°N 75.26°W (Elev. 295 ft)
7:27 pm EDT Aug 21, 2026
1am EDT Aug 22, 2026-6pm EDT Aug 28, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database