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.

Overcast

48°F

9°C

Humidity 83%
Wind Speed Vrbl 6 mph
Barometer 29.84 in (1010.7 mb)
Dewpoint 43°F (6°C)
Visibility 10.00 mi
Wind Chill45°F (7°C)
Last update 16 Mar 4:53 am EDT
Extended Forecast for

Sussex NJ

  • Overnight

    Overnight: Showers and possibly a thunderstorm. Low around 43. Southeast wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 43 °F

    Showers

  • Monday

    Monday: Showers and thunderstorms before 10am, then showers and possibly a thunderstorm, mainly after 10am. Some of the storms could be severe and produce heavy rainfall. High near 66. South wind 10 to 15 mph, with gusts as high as 35 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 66 °F

    Showers then
    Severe
    Thunderstorms

  • Monday Night

    Monday Night: Showers and possibly a thunderstorm before 1am, then a chance of showers between 1am and 3am. Some of the storms could be severe and produce heavy rainfall. Low around 29. South wind around 15 mph becoming west after midnight. Winds could gust as high as 40 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 29 °F

    Severe
    Thunderstorms
    then Showers

  • Tuesday

    Tuesday: Mostly sunny, with a high near 40. West wind around 15 mph, with gusts as high as 30 mph.

    High: 40 °F

    Mostly Sunny

  • Tuesday Night

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

    Low: 20 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 39.

    High: 39 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 24.

    Low: 24 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly cloudy, with a high near 48.

    High: 48 °F

    Mostly Cloudy

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 31.

    Low: 31 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Showers and possibly a thunderstorm. Low around 43. Southeast wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Monday
Showers and thunderstorms before 10am, then showers and possibly a thunderstorm, mainly after 10am. Some of the storms could be severe and produce heavy rainfall. High near 66. South wind 10 to 15 mph, with gusts as high as 35 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Monday Night
Showers and possibly a thunderstorm before 1am, then a chance of showers between 1am and 3am. Some of the storms could be severe and produce heavy rainfall. Low around 29. South wind around 15 mph becoming west after midnight. Winds could gust as high as 40 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Tuesday
Mostly sunny, with a high near 40. West wind around 15 mph, with gusts as high as 30 mph.
Tuesday Night
Partly cloudy, with a low around 20. West wind 5 to 10 mph, with gusts as high as 20 mph.
Wednesday
Mostly sunny, with a high near 39.
Wednesday Night
Mostly cloudy, with a low around 24.
Thursday
Mostly cloudy, with a high near 48.
Thursday Night
Mostly cloudy, with a low around 31.
Friday
Partly sunny, with a high near 55.
Friday Night
A chance of rain and snow showers. Mostly cloudy, with a low around 32. Chance of precipitation is 30%.
Saturday
A chance of rain and snow showers. Mostly cloudy, with a high near 52. Chance of precipitation is 40%.
Saturday Night
A chance of rain and snow showers. Mostly cloudy, with a low around 32. Chance of precipitation is 30%.
Sunday
A chance of rain and snow showers. Partly sunny, with a high near 46. Chance of precipitation is 30%.
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ABOUT THIS FORECAST

 
Point Forecast:
Sussex NJ
 41.21°N 74.62°W (Elev. 407 ft)
Last Update:
4:12 am EDT Mar 16, 2026
Forecast Valid:
5am EDT Mar 16, 2026-6pm EDT Mar 22, 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