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

Prolonged Atmospheric River Will Impact the Northwest Early this Week

A weather system in the Pacific Northwest will produce rain throughout the day, before a potent atmospheric river produces a prolonged round of heavy rainfall, widespread urban and river flooding, and high elevation snow to the region Monday through Wednesday. Showers and thunderstorms may produce isolated damaging winds, a brief tornado, and locally heavy rainfall across parts of Florida today. Read More >

Current conditions at

Philadelphia, Philadelphia International Airport (KPHL)

Lat: 39.87°NLon: 75.23°WElev: 7ft.

Overcast

37°F

3°C

Humidity 73%
Wind Speed NW 6 mph
Barometer 30.09 in (1018.9 mb)
Dewpoint 29°F (-2°C)
Visibility 7.00 mi
Wind Chill32°F (0°C)
Last update 7 Dec 11:54 pm EST
Extended Forecast for

Grenloch NJ

  • Overnight

    Overnight: Partly cloudy, with a low around 26. North wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 26 °F

    Partly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 32. Northeast wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 32 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around 16. Northeast wind around 5 mph becoming calm in the evening.

    Low: 16 °F

    Decreasing
    Clouds

  • Tuesday

    Tuesday: Increasing clouds, with a high near 37. Calm wind becoming south around 5 mph in the afternoon.

    High: 37 °F

    Increasing
    Clouds

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 30. Southwest wind around 5 mph.

    Low: 30 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A chance of rain. Mostly cloudy, with a high near 48. Chance of precipitation is 30%.

    High: 48 °F

    Chance Rain

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 34.

    Low: 34 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 43.

    High: 43 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: A chance of rain and snow. Mostly cloudy, with a low around 29. Chance of precipitation is 40%.

    Low: 29 °F

    Chance
    Rain/Snow

Detailed Forecast

Overnight
Partly cloudy, with a low around 26. North wind 5 to 10 mph, with gusts as high as 20 mph.
Monday
Partly sunny, with a high near 32. Northeast wind 10 to 15 mph, with gusts as high as 25 mph.
Monday Night
Mostly cloudy, then gradually becoming mostly clear, with a low around 16. Northeast wind around 5 mph becoming calm in the evening.
Tuesday
Increasing clouds, with a high near 37. Calm wind becoming south around 5 mph in the afternoon.
Tuesday Night
Mostly cloudy, with a low around 30. Southwest wind around 5 mph.
Wednesday
A chance of rain. Mostly cloudy, with a high near 48. Chance of precipitation is 30%.
Wednesday Night
Mostly cloudy, with a low around 34.
Thursday
Mostly sunny, with a high near 43.
Thursday Night
A chance of rain and snow. Mostly cloudy, with a low around 29. Chance of precipitation is 40%.
Friday
A chance of rain and snow. Partly sunny, with a high near 38. Chance of precipitation is 30%.
Friday Night
A chance of rain and snow. Mostly cloudy, with a low around 22. Chance of precipitation is 30%.
Saturday
Mostly sunny, with a high near 33.
Saturday Night
Partly cloudy, with a low around 21.
Sunday
Mostly sunny, with a high near 32.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Grenloch NJ
 39.79°N 75.04°W (Elev. 98 ft)
Last Update:
6:09 pm EST Dec 7, 2025
Forecast Valid:
12am EST Dec 8, 2025-6pm EST Dec 14, 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