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/Mist

29°F

-2°C

Humidity 85%
Wind Speed Calm
Barometer 30.01 in (1016.7 mb)
Dewpoint 25°F (-4°C)
Visibility 2.00 mi
Last update 18 Jan 4:53 am EST
Extended Forecast for

Sussex NJ

Winter Weather Advisory until January 18, 08:00pm
Click here for hazard details and duration
Winter Weather Advisory
  •  
    Winter Weather Advisory until January 18, 08:00pm

    NOW until 8:00pm Sun

    Winter Weather Advisory

  • Overnight

    Low: 27 °F

    Slight Chance
    Snow

  • Sunday

    Sunday: Snow, mainly before noon. High near 33. Calm wind. Chance of precipitation is 90%. New snow accumulation of 2 to 4 inches possible.

    High: 33 °F

    Snow then
    Chance Snow

  • Sunday Night

    Sunday Night: A chance of snow, mainly before 7pm. Cloudy during the early evening, then gradual clearing, with a low around 17. Northwest wind around 5 mph becoming southwest after midnight. Chance of precipitation is 30%. New snow accumulation of less than one inch possible.

    Low: 17 °F

    Chance Snow
    then Partly
    Cloudy

  • M.L.King Day

    M.L.King Day: Mostly sunny, with a high near 31. Southwest wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 31 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 8. West wind around 10 mph.

    Low: 8 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 22.

    High: 22 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 4.

    Low: 4 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 29.

    High: 29 °F

    Mostly Sunny

Detailed Forecast

Overnight
A slight chance of snow. Cloudy, with a low around 27. Calm wind. Chance of precipitation is 20%.
Sunday
Snow, mainly before noon. High near 33. Calm wind. Chance of precipitation is 90%. New snow accumulation of 2 to 4 inches possible.
Sunday Night
A chance of snow, mainly before 7pm. Cloudy during the early evening, then gradual clearing, with a low around 17. Northwest wind around 5 mph becoming southwest after midnight. Chance of precipitation is 30%. New snow accumulation of less than one inch possible.
M.L.King Day
Mostly sunny, with a high near 31. Southwest wind 5 to 10 mph, with gusts as high as 20 mph.
Monday Night
Partly cloudy, with a low around 8. West wind around 10 mph.
Tuesday
Mostly sunny, with a high near 22.
Tuesday Night
Mostly clear, with a low around 4.
Wednesday
Mostly sunny, with a high near 29.
Wednesday Night
Mostly cloudy, with a low around 22.
Thursday
Mostly sunny, with a high near 35.
Thursday Night
Partly cloudy, with a low around 12.
Friday
Mostly sunny, with a high near 30.
Friday Night
Mostly cloudy, with a low around 18.
Saturday
A chance of snow. Partly sunny, with a high near 32. Chance of precipitation is 30%.
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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:
4:11 am EST Jan 18, 2026
Forecast Valid:
5am EST Jan 18, 2026-6pm EST Jan 24, 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