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

Tracking Storm System Across the Eastern U.S.

A storm system will continue to produce widespread showers and thunderstorms as it progresses eastward across the central U.S. into the Northeast through the weekend. There are risks of severe thunderstorms and excessive rainfall on Saturday from the Ozarks into the mid-Mississippi River Valley with potential for damaging winds, large hail, tornadoes, and flash flooding. Read More >

Current conditions at

Philadelphia - Wings Field Airport (KLOM)

Lat: 40.14°NLon: 75.27°WElev: 282ft.

Fair

40°F

4°C

Humidity 97%
Wind Speed Calm
Barometer 30.01 in
Dewpoint 39°F (4°C)
Visibility 10.00 mi
Last update 18 Oct 3:35 am EDT
Extended Forecast for

Gwynedd Valley PA

  • Overnight

    Overnight: Mostly clear, with a low around 40. Calm wind.

    Low: 40 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 69. Calm wind becoming southwest around 5 mph in the afternoon.

    High: 69 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 49. Calm wind.

    Low: 49 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 76. South wind 5 to 15 mph, with gusts as high as 25 mph.

    High: 76 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Showers. Low around 53. South wind around 15 mph, with gusts as high as 30 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 53 °F

    Showers

  • Monday

    Monday: A chance of showers, mainly before 2pm. Partly sunny, with a high near 62. Chance of precipitation is 30%. New precipitation amounts between a quarter and half of an inch possible.

    High: 62 °F

    Chance
    Showers

  • Monday Night

    Monday Night: Mostly clear, with a low around 43.

    Low: 43 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 68.

    High: 68 °F

    Sunny

  • Tuesday Night

    Tuesday Night: A chance of showers. Mostly cloudy, with a low around 47. Chance of precipitation is 50%.

    Low: 47 °F

    Chance
    Showers

Detailed Forecast

Overnight
Mostly clear, with a low around 40. Calm wind.
Saturday
Mostly sunny, with a high near 69. Calm wind becoming southwest around 5 mph in the afternoon.
Saturday Night
Mostly clear, with a low around 49. Calm wind.
Sunday
Mostly sunny, with a high near 76. South wind 5 to 15 mph, with gusts as high as 25 mph.
Sunday Night
Showers. Low around 53. South wind around 15 mph, with gusts as high as 30 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Monday
A chance of showers, mainly before 2pm. Partly sunny, with a high near 62. Chance of precipitation is 30%. New precipitation amounts between a quarter and half of an inch possible.
Monday Night
Mostly clear, with a low around 43.
Tuesday
Sunny, with a high near 68.
Tuesday Night
A chance of showers. Mostly cloudy, with a low around 47. Chance of precipitation is 50%.
Wednesday
Mostly sunny, with a high near 60.
Wednesday Night
Mostly clear, with a low around 43.
Thursday
Mostly sunny, with a high near 61.
Thursday Night
Partly cloudy, with a low around 42.
Friday
Mostly sunny, with a high near 62.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Gwynedd Valley PA
 40.17°N 75.26°W (Elev. 295 ft)
Last Update:
3:21 am EDT Oct 18, 2025
Forecast Valid:
3am EDT Oct 18, 2025-6pm EDT Oct 24, 2025
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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