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.

Fair with Haze

30°F

-1°C

Humidity 79%
Wind Speed Calm
Barometer 30.06 in (1018.1 mb)
Dewpoint 24°F (-4°C)
Visibility 4.00 mi
Last update 17 Feb 10:53 pm EST
Extended Forecast for

Sussex NJ

Dense Fog Advisory until February 18, 10:00am
Click here for hazard details and duration
Dense Fog Advisory
  •  
    Dense Fog Advisory until February 18, 10:00am

    NOW until 10:00am Wed

    Dense Fog Advisory

  • Tonight

    Low: 31 °F

    Dense Fog

  • Wednesday

    Wednesday: Rain. Widespread dense fog, mainly before 11am. High near 43. Calm wind. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 43 °F

    Rain and
    Dense Fog

  • Wednesday Night

    Wednesday Night: Rain likely, mainly before 7pm. Patchy fog. Otherwise, mostly cloudy, with a low around 31. Calm wind. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 31 °F

    Rain Likely
    and Patchy
    Fog

  • Thursday

    Thursday: Patchy fog before 10am. Otherwise, mostly cloudy, with a high near 40. Calm wind.

    High: 40 °F

    Patchy Fog
    then Mostly
    Cloudy

  • Thursday Night

    Thursday Night: A slight chance of rain before 1am, then a chance of snow between 1am and 4am, then a chance of rain and snow after 4am. Cloudy, with a low around 29. Calm wind. Chance of precipitation is 40%. New snow accumulation of less than a half inch possible.

    Low: 29 °F

    Slight Chance
    Rain then
    Chance
    Rain/Snow

  • Friday

    Friday: Rain, possibly mixed with snow, becoming all rain after 1pm. High near 41. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    High: 41 °F

    Rain/Snow

  • Friday Night

    Friday Night: A chance of rain before 1am. Mostly cloudy, with a low around 30. Chance of precipitation is 40%.

    Low: 30 °F

    Chance Rain

  • Saturday

    Saturday: Partly sunny, with a high near 45.

    High: 45 °F

    Partly Sunny

Detailed Forecast

Tonight
Widespread dense fog. Otherwise, cloudy, with a low around 31. Calm wind.
Wednesday
Rain. Widespread dense fog, mainly before 11am. High near 43. Calm wind. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Wednesday Night
Rain likely, mainly before 7pm. Patchy fog. Otherwise, mostly cloudy, with a low around 31. Calm wind. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Thursday
Patchy fog before 10am. Otherwise, mostly cloudy, with a high near 40. Calm wind.
Thursday Night
A slight chance of rain before 1am, then a chance of snow between 1am and 4am, then a chance of rain and snow after 4am. Cloudy, with a low around 29. Calm wind. Chance of precipitation is 40%. New snow accumulation of less than a half inch possible.
Friday
Rain, possibly mixed with snow, becoming all rain after 1pm. High near 41. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Friday Night
A chance of rain before 1am. Mostly cloudy, with a low around 30. Chance of precipitation is 40%.
Saturday
Partly sunny, with a high near 45.
Saturday Night
Mostly cloudy, with a low around 27.
Sunday
A chance of snow. Mostly cloudy, with a high near 38. Chance of precipitation is 50%.
Sunday Night
A chance of snow. Mostly cloudy, with a low around 24. Chance of precipitation is 50%.
Monday
A chance of snow. Partly sunny, with a high near 37. Chance of precipitation is 30%.
Monday Night
Partly cloudy, with a low around 16.
Tuesday
Sunny, with a high near 31.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Sussex NJ
 41.21°N 74.62°W (Elev. 407 ft)
Last Update:
4:19 pm EST Feb 17, 2026
Forecast Valid:
11pm EST Feb 17, 2026-6pm EST Feb 24, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation