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

Excessive Rainfall Possible This Weekend; October Heat Wave in California

A slow moving front will be the focus area for heavy to excessive rainfall and a threat for flash/urban flooding across the northern Gulf Coast and Southeast U.S. through this weekend. Abnormally hot, potentially record-breaking, temperatures will impact southern California and stretch north toward the Bay Area and Central Valley into next week. Read More >

Current conditions at

Philadelphia, Philadelphia International Airport (KPHL)

Lat: 39.87°NLon: 75.23°WElev: 7ft.

Light Rain Fog/Mist

61°F

16°C

Humidity 93%
Wind Speed NE 12 mph
Barometer 30.19 in (1022.2 mb)
Dewpoint 59°F (15°C)
Visibility 2.00 mi
Last update 4 Oct 12:54 pm EDT
Extended Forecast for

Merion Station PA

  • This Afternoon

    This Afternoon: A chance of showers. Cloudy, with a high near 64. East wind 5 to 10 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.

    High: 64 °F

    Chance
    Showers

  • Tonight

    Tonight: Patchy fog after midnight. Otherwise, mostly cloudy, with a low around 56. Northeast wind around 5 mph becoming calm in the evening.

    Low: 56 °F

    Cloudy then
    Patchy Fog

  • Monday

    Monday: Mostly cloudy through mid morning, then gradual clearing, with a high near 68. Northwest wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 68 °F

    Becoming
    Sunny

  • Monday Night

    Monday Night: Clear, with a low around 46. Northwest wind around 5 mph.

    Low: 46 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 62. Northwest wind around 5 mph.

    High: 62 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Clear, with a low around 46.

    Low: 46 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 68.

    High: 68 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 52.

    Low: 52 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 72.

    High: 72 °F

    Sunny

Detailed Forecast

This Afternoon
A chance of showers. Cloudy, with a high near 64. East wind 5 to 10 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.
Tonight
Patchy fog after midnight. Otherwise, mostly cloudy, with a low around 56. Northeast wind around 5 mph becoming calm in the evening.
Monday
Mostly cloudy through mid morning, then gradual clearing, with a high near 68. Northwest wind 5 to 10 mph, with gusts as high as 20 mph.
Monday Night
Clear, with a low around 46. Northwest wind around 5 mph.
Tuesday
Sunny, with a high near 62. Northwest wind around 5 mph.
Tuesday Night
Clear, with a low around 46.
Wednesday
Sunny, with a high near 68.
Wednesday Night
Mostly clear, with a low around 52.
Thursday
Sunny, with a high near 72.
Thursday Night
Mostly clear, with a low around 52.
Friday
Sunny, with a high near 71.
Friday Night
Mostly clear, with a low around 53.
Saturday
Mostly sunny, with a high near 68.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Merion Station PA
 40.01°N 75.26°W (Elev. 299 ft)
Last Update:
4:09 am EDT Oct 4, 2026
Forecast Valid:
1pm EDT Oct 4, 2026-6pm EDT Oct 10, 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