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

33°F

1°C

Humidity 82%
Wind Speed Calm
Barometer 30.10 in (1019.6 mb)
Dewpoint 28°F (-2°C)
Visibility 10.00 mi
Last update 20 Apr 12:53 am EDT
Extended Forecast for

2 Miles SSW Hewitt NJ

Frost Advisory until April 20, 08:00am
Freeze Warning April 21, 12:00am until April 21, 09:00am
Click here for hazard details and duration
Frost Advisory
Freeze Warning
  •  
    Frost Advisory until April 20, 08:00am

    NOW until 8:00am Mon

    Frost Advisory

  • Overnight

    Low: 33 °F

    Frost

  • Monday

    Monday: A chance of rain and snow showers before 10am, then a slight chance of rain showers between 10am and noon. Partly sunny, with a high near 49. Northwest wind 5 to 9 mph, with gusts as high as 21 mph. Chance of precipitation is 30%.

    High: 49 °F

    Chance
    Rain/Snow
    then Mostly
    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 25. Northwest wind 3 to 6 mph.

    Low: 25 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 52. Wind chill values between 20 and 30 early. Calm wind becoming southwest around 5 mph in the afternoon.

    High: 52 °F

    Sunny

  • Tuesday Night

    Tuesday Night: A 30 percent chance of showers, mainly after 2am. Increasing clouds, with a low around 39. Calm wind becoming south around 5 mph.

    Low: 39 °F

    Mostly Cloudy
    then Chance
    Showers

  • Wednesday

    Wednesday: Partly sunny, with a high near 60.

    High: 60 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 41.

    Low: 41 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 68.

    High: 68 °F

    Mostly Sunny

Detailed Forecast

Overnight
Widespread frost, mainly after 3am. Otherwise, increasing clouds, with a low around 33. Calm wind.
Monday
A chance of rain and snow showers before 10am, then a slight chance of rain showers between 10am and noon. Partly sunny, with a high near 49. Northwest wind 5 to 9 mph, with gusts as high as 21 mph. Chance of precipitation is 30%.
Monday Night
Mostly clear, with a low around 25. Northwest wind 3 to 6 mph.
Tuesday
Sunny, with a high near 52. Wind chill values between 20 and 30 early. Calm wind becoming southwest around 5 mph in the afternoon.
Tuesday Night
A 30 percent chance of showers, mainly after 2am. Increasing clouds, with a low around 39. Calm wind becoming south around 5 mph.
Wednesday
Partly sunny, with a high near 60.
Wednesday Night
Mostly clear, with a low around 41.
Thursday
Mostly sunny, with a high near 68.
Thursday Night
Partly cloudy, with a low around 44.
Friday
Mostly sunny, with a high near 69.
Friday Night
A 40 percent chance of showers. Partly cloudy, with a low around 44.
Saturday
A 50 percent chance of showers. Partly sunny, with a high near 63.
Saturday Night
A 50 percent chance of showers. Mostly cloudy, with a low around 44.
Sunday
A 40 percent chance of showers. Mostly cloudy, with a high near 61.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SSW Hewitt NJ
 41.13°N 74.37°W (Elev. 702 ft)
Last Update:
6:50 pm EDT Apr 19, 2026
Forecast Valid:
1am EDT Apr 20, 2026-6pm EDT Apr 26, 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