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

Briefing for Impacts from Strong Coastal Storm Sunday through Monday

A strong coastal storm is forecast to bring potentially significant impacts to our region. Moderate to major coastal flooding, strong to damaging winds, beach erosion, and very dangerous marine conditions are forecast. View this briefing for details on these threats. Read More >

Current conditions at

Philadelphia - Wings Field Airport (KLOM)

Lat: 40.14°NLon: 75.27°WElev: 282ft.

Mostly Cloudy

46°F

8°C

Humidity 92%
Wind Speed Calm
Barometer 30.32 in
Dewpoint 43°F (6°C)
Visibility 10.00 mi
Last update 10 Oct 9:55 pm EDT
Extended Forecast for

Norristown PA

  • Tonight

    Tonight: Mostly cloudy, with a low around 49. Calm wind.

    Low: 49 °F

    Mostly Cloudy

  • Saturday

    Saturday: A chance of showers, mainly after noon. Cloudy, with a high near 69. East wind 5 to 15 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.

    High: 69 °F

    Chance
    Showers

  • Saturday Night

    Saturday Night: Rain, mainly after 8pm. Low around 57. East wind 10 to 15 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 57 °F

    Rain

  • Sunday

    Sunday: Rain. High near 63. Breezy, with a northeast wind 15 to 20 mph, with gusts as high as 35 mph. Chance of precipitation is 80%. New precipitation amounts between a half and three quarters of an inch possible.

    High: 63 °F

    Rain and
    Breezy

  • Sunday Night

    Sunday Night: Rain likely. Cloudy, with a low around 54. Breezy, with a northeast wind 15 to 20 mph, with gusts as high as 35 mph. Chance of precipitation is 70%. New precipitation amounts between a half and three quarters of an inch possible.

    Low: 54 °F

    Rain Likely
    and Breezy

  • Columbus Day

    Columbus Day: Rain likely. Mostly cloudy, with a high near 61. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.

    High: 61 °F

    Rain Likely

  • Monday Night

    Monday Night: Rain likely, mainly before 2am. Mostly cloudy, with a low around 53. Chance of precipitation is 70%.

    Low: 53 °F

    Rain Likely

  • Tuesday

    Tuesday: A chance of rain before 8am, then a chance of showers between 8am and 2pm. Mostly cloudy, with a high near 66. Chance of precipitation is 30%.

    High: 66 °F

    Chance Rain

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 50.

    Low: 50 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a low around 49. Calm wind.
Saturday
A chance of showers, mainly after noon. Cloudy, with a high near 69. East wind 5 to 15 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.
Saturday Night
Rain, mainly after 8pm. Low around 57. East wind 10 to 15 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Sunday
Rain. High near 63. Breezy, with a northeast wind 15 to 20 mph, with gusts as high as 35 mph. Chance of precipitation is 80%. New precipitation amounts between a half and three quarters of an inch possible.
Sunday Night
Rain likely. Cloudy, with a low around 54. Breezy, with a northeast wind 15 to 20 mph, with gusts as high as 35 mph. Chance of precipitation is 70%. New precipitation amounts between a half and three quarters of an inch possible.
Columbus Day
Rain likely. Mostly cloudy, with a high near 61. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.
Monday Night
Rain likely, mainly before 2am. Mostly cloudy, with a low around 53. Chance of precipitation is 70%.
Tuesday
A chance of rain before 8am, then a chance of showers between 8am and 2pm. Mostly cloudy, with a high near 66. Chance of precipitation is 30%.
Tuesday Night
Partly cloudy, with a low around 50.
Wednesday
Mostly sunny, with a high near 67.
Wednesday Night
Partly cloudy, with a low around 47.
Thursday
Sunny, with a high near 61.
Thursday Night
Mostly clear, with a low around 42.
Friday
Sunny, with a high near 63.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Norristown PA
 40.13°N 75.33°W (Elev. 200 ft)
Last Update:
9:21 pm EDT Oct 10, 2025
Forecast Valid:
10pm EDT Oct 10, 2025-6pm EDT Oct 17, 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