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

Heat the Southwest; Fire Weather in the Central U.S.; Kona Low Impacting Hawaii

A rare March heat wave is ongoing with much above-normal temperatures over the Southwest U.S. through this weekend. Periods of critical fire weather will persist from the central Rockies to the central and southern Plains through the weekend as gusty winds and low relative humidity continue. A Kona low will continue to bring several rounds of moderate to heavy rainfall to Hawaii through Sunday. Read More >

Current conditions at

Sussex, Sussex Airport (KFWN)

Lat: 41.2°NLon: 74.63°WElev: 410ft.

Fair

55°F

13°C

Humidity 40%
Wind Speed Vrbl 6 mph
Barometer 29.92 in (1013.2 mb)
Dewpoint 31°F (-1°C)
Visibility 10.00 mi
Wind Chill54°F (12°C)
Last update 21 Mar 3:53 pm EDT
Extended Forecast for

Sussex NJ

  • Tonight

    Tonight: Mostly cloudy, with a low around 40. Northwest wind around 5 mph becoming calm in the evening.

    Low: 40 °F

    Mostly Cloudy

  • Sunday

    Sunday: A slight chance of showers, then a chance of showers and thunderstorms after 3pm. Mostly cloudy, with a high near 66. Southwest wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 30%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 66 °F

    Chance
    Showers

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms before 7pm, then showers likely and possibly a thunderstorm between 7pm and 8pm, then showers after 8pm. Low around 38. Calm wind becoming north around 5 mph after midnight. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 38 °F

    Showers

  • Monday

    Monday: A slight chance of showers before 2pm. Cloudy through mid morning, then gradual clearing, with a high near 48. Northwest wind around 10 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.

    High: 48 °F

    Slight Chance
    Showers

  • Monday Night

    Monday Night: Mostly clear, with a low around 26. Northwest wind 5 to 10 mph.

    Low: 26 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 50.

    High: 50 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 30.

    Low: 30 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 55.

    High: 55 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 33.

    Low: 33 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a low around 40. Northwest wind around 5 mph becoming calm in the evening.
Sunday
A slight chance of showers, then a chance of showers and thunderstorms after 3pm. Mostly cloudy, with a high near 66. Southwest wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 30%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Sunday Night
A chance of showers and thunderstorms before 7pm, then showers likely and possibly a thunderstorm between 7pm and 8pm, then showers after 8pm. Low around 38. Calm wind becoming north around 5 mph after midnight. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Monday
A slight chance of showers before 2pm. Cloudy through mid morning, then gradual clearing, with a high near 48. Northwest wind around 10 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.
Monday Night
Mostly clear, with a low around 26. Northwest wind 5 to 10 mph.
Tuesday
Sunny, with a high near 50.
Tuesday Night
Mostly cloudy, with a low around 30.
Wednesday
Partly sunny, with a high near 55.
Wednesday Night
Mostly cloudy, with a low around 33.
Thursday
A chance of rain after 8am. Mostly cloudy, with a high near 55. Chance of precipitation is 30%.
Thursday Night
Rain likely. Mostly cloudy, with a low around 37. Chance of precipitation is 60%.
Friday
A chance of rain. Mostly sunny, with a high near 50. Chance of precipitation is 30%.
Friday Night
Partly cloudy, with a low around 25.
Saturday
Mostly sunny, with a high near 47.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Sussex NJ
 41.21°N 74.62°W (Elev. 407 ft)
Last Update:
4:09 pm EDT Mar 21, 2026
Forecast Valid:
4pm EDT Mar 21, 2026-6pm EDT Mar 28, 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