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

32°F

0°C

Humidity 82%
Wind Speed Calm
Barometer 30.08 in (1019.0 mb)
Dewpoint 27°F (-3°C)
Visibility 10.00 mi
Last update 20 Apr 2:53 am EDT
Extended Forecast for

2 Miles SSW Hewitt NJ

Frost Advisory April 20, 03:53am 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 April 20, 03:53am until April 20, 08:00am

    NOW until 8:00am Mon

    Frost Advisory

  • Overnight

    Low: 33 °F

    Frost

  • Monday

    Monday: Mostly sunny, with a high near 49. Northwest wind 5 to 8 mph.

    High: 49 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Widespread frost after 5am. Otherwise, mostly clear, with a low around 25. Northwest wind 3 to 6 mph.

    Low: 25 °F

    Mostly Clear
    then Frost

  • Tuesday

    Tuesday: Sunny, with a high near 53. Light and variable wind.

    High: 53 °F

    Sunny

  • Tuesday Night

    Tuesday Night: A 40 percent chance of showers, mainly after 2am. Increasing clouds, with a low around 38. Calm wind becoming south around 5 mph after midnight.

    Low: 38 °F

    Chance
    Showers

  • Wednesday

    Wednesday: A 30 percent chance of showers before 8am. Partly sunny, with a high near 61.

    High: 61 °F

    Chance
    Showers then
    Partly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 41.

    Low: 41 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 67.

    High: 67 °F

    Mostly Sunny

Detailed Forecast

Overnight
Widespread frost. Otherwise, mostly clear, with a low around 33. Calm wind.
Monday
Mostly sunny, with a high near 49. Northwest wind 5 to 8 mph.
Monday Night
Widespread frost after 5am. Otherwise, mostly clear, with a low around 25. Northwest wind 3 to 6 mph.
Tuesday
Sunny, with a high near 53. Light and variable wind.
Tuesday Night
A 40 percent chance of showers, mainly after 2am. Increasing clouds, with a low around 38. Calm wind becoming south around 5 mph after midnight.
Wednesday
A 30 percent chance of showers before 8am. Partly sunny, with a high near 61.
Wednesday Night
Partly cloudy, with a low around 41.
Thursday
Mostly sunny, with a high near 67.
Thursday Night
Partly cloudy, with a low around 44.
Friday
Mostly sunny, with a high near 66.
Friday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 44.
Saturday
A 40 percent chance of showers. Partly sunny, with a high near 59.
Saturday Night
A 50 percent chance of showers. Mostly cloudy, with a low around 42.
Sunday
A 40 percent chance of showers. Mostly cloudy, with a high near 59.
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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:
2:20 am EDT Apr 20, 2026
Forecast Valid:
3am 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