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

Hazardous Weather Conditions

Current conditions at

Sussex, Sussex Airport (KFWN)

Lat: 41.2°NLon: 74.63°WElev: 410ft.

Fog

34°F

1°C

Humidity 85%
Wind Speed Calm
Barometer 29.49 in (999.1 mb)
Dewpoint 30°F (-1°C)
Visibility 0.50 mi
Last update 29 Dec 5:53 am EST
Extended Forecast for

Sussex NJ

Wind Advisory December 29, 10:00am until December 30, 01:00pm
Dense Fog Advisory December 29, 06:43am until December 29, 10:00am
Click here for hazard details and duration
Wind Advisory
...
  •  
    Dense Fog Advisory December 29, 06:43am until December 29, 10:00am

    NOW until 10:00am Mon

    Dense Fog Advisory

  • Today

    High: 48 °F

    Showers and
    Areas Fog
    then Slight
    Chance
    Showers and
    Breezy

  • Tonight

    Tonight: Mostly cloudy, with a low around 22. West wind around 15 mph, with gusts as high as 35 mph.

    Low: 22 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 30. Breezy, with a west wind 15 to 20 mph, with gusts as high as 45 mph.

    High: 30 °F

    Mostly Cloudy
    and Breezy
    then Mostly
    Cloudy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 20. West wind 5 to 10 mph, with gusts as high as 25 mph.

    Low: 20 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A slight chance of snow after 1pm. Mostly cloudy, with a high near 33. Southwest wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.

    High: 33 °F

    Partly Sunny
    then Slight
    Chance Snow

  • Wednesday Night

    Wednesday Night: A chance of snow, mainly before 1am. Mostly cloudy, with a low around 15. Chance of precipitation is 30%.

    Low: 15 °F

    Chance Snow

  • New Year's Day

    New Year's Day: Mostly sunny, with a high near 25.

    High: 25 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 11.

    Low: 11 °F

    Partly Cloudy

Detailed Forecast

Today
Showers, mainly before 1pm. Areas of fog before 10am. High near 48. Breezy, with a west wind 5 to 10 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 40 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Tonight
Mostly cloudy, with a low around 22. West wind around 15 mph, with gusts as high as 35 mph.
Tuesday
Mostly cloudy, with a high near 30. Breezy, with a west wind 15 to 20 mph, with gusts as high as 45 mph.
Tuesday Night
Mostly cloudy, with a low around 20. West wind 5 to 10 mph, with gusts as high as 25 mph.
Wednesday
A slight chance of snow after 1pm. Mostly cloudy, with a high near 33. Southwest wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.
Wednesday Night
A chance of snow, mainly before 1am. Mostly cloudy, with a low around 15. Chance of precipitation is 30%.
New Year's Day
Mostly sunny, with a high near 25.
Thursday Night
Partly cloudy, with a low around 11.
Friday
Mostly sunny, with a high near 26.
Friday Night
Partly cloudy, with a low around 12.
Saturday
Partly sunny, with a high near 31.
Saturday Night
Mostly cloudy, with a low around 14.
Sunday
Mostly sunny, with a high near 30.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Sussex NJ
 41.2°N 74.59°W (Elev. 400 ft)
Last Update:
5:47 am EST Dec 29, 2025
Forecast Valid:
6am EST Dec 29, 2025-6pm EST Jan 4, 2026
 
Forecast Discussion
 
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Additional Resources

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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