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

Sussex, Sussex Airport (KFWN)

Lat: 41.2°NLon: 74.63°WElev: 410ft.

Mostly Cloudy

28°F

-2°C

Humidity 78%
Wind Speed N 3 mph
Barometer 29.85 in (1011.1 mb)
Dewpoint 22°F (-6°C)
Visibility 10.00 mi
Last update 18 Jan 8:53 pm EST
Extended Forecast for

Sussex NJ

  • Tonight

    Tonight: A slight chance of snow before 11pm. Mostly cloudy, with a low around 17. North wind around 5 mph becoming west after midnight. Chance of precipitation is 20%.

    Low: 17 °F

    Slight Chance
    Snow then
    Mostly Cloudy

  • M.L.King Day

    M.L.King Day: Partly sunny, with a high near 31. Southwest wind 5 to 15 mph.

    High: 31 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 12. West wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 12 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 21. Wind chill values as low as zero. West wind around 10 mph, with gusts as high as 25 mph.

    High: 21 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 4. West wind around 5 mph becoming calm in the evening.

    Low: 4 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 29.

    High: 29 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 21.

    Low: 21 °F

    Mostly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 37.

    High: 37 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 13.

    Low: 13 °F

    Partly Cloudy

Detailed Forecast

Tonight
A slight chance of snow before 11pm. Mostly cloudy, with a low around 17. North wind around 5 mph becoming west after midnight. Chance of precipitation is 20%.
M.L.King Day
Partly sunny, with a high near 31. Southwest wind 5 to 15 mph.
Monday Night
Mostly clear, with a low around 12. West wind 5 to 10 mph, with gusts as high as 20 mph.
Tuesday
Mostly sunny, with a high near 21. Wind chill values as low as zero. West wind around 10 mph, with gusts as high as 25 mph.
Tuesday Night
Mostly clear, with a low around 4. West wind around 5 mph becoming calm in the evening.
Wednesday
Mostly sunny, with a high near 29.
Wednesday Night
Mostly cloudy, with a low around 21.
Thursday
Partly sunny, with a high near 37.
Thursday Night
Partly cloudy, with a low around 13.
Friday
Mostly sunny, with a high near 27.
Friday Night
Mostly cloudy, with a low around 11.
Saturday
Partly sunny, with a high near 23.
Saturday Night
Mostly cloudy, with a low around 5.
Sunday
A chance of snow. Partly sunny, with a high near 20. Chance of precipitation is 30%.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Sussex NJ
 41.21°N 74.62°W (Elev. 407 ft)
Last Update:
8:03 pm EST Jan 18, 2026
Forecast Valid:
9pm EST Jan 18, 2026-6pm EST Jan 25, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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