Weather WorldLake Success, NJ 7-Day Night Weather Forecast
Quick Weather Clicks
Settings
Sun & Moon
Weather Quote O' the Day
Lake Success, NJ Weather Forecast
Lake Success, NJ Weather Forecast Date: 400 PM EDT Wed Sep 16 2026
The area/counties/county of: Sussex, including the city of Newton.or toggle through each period.
Tonight... Partly cloudy this evening, then becoming mostly cloudy. Patchy fog after midnight. Not as cool with lows in the mid 60s. South winds around 5 mph this evening, becoming light and variable.
Thursday... Mostly cloudy. Patchy fog in the morning. A chance of showers in the afternoon. Humid with highs around 80. South winds around 5 mph. Chance of rain 40%.
Thursday Night... Mostly cloudy. A chance of showers in the evening. Humid with lows in the mid 60s. Southwest winds around 5 mph, becoming northwest after midnight. Chance of rain 50%.
Friday... Sunny. Highs in the upper 70s. North winds 5 to 10 mph.
Friday Night... Mostly clear in the evening, then becoming partly cloudy. Cooler with lows around 50. North winds around 5 mph.
Saturday... Mostly sunny. Highs around 70.
Saturday Night... Mostly cloudy. A chance of showers after midnight. Lows in the mid 50s. Chance of rain 50%.
Sunday... Showers. Highs in the upper 60s. Chance of rain 80%.
Sunday Night... Mostly cloudy. Showers, mainly in the evening. Lows in the mid 50s. Chance of rain 80%.
Monday... Mostly cloudy in the morning, then becoming partly sunny. A 40% chance of showers. Highs in the upper 60s.
Monday Night... Mostly cloudy with a 50% chance of showers. Lows in the lower 50s.
Tuesday... Mostly cloudy with a 50% chance of showers. Highs in the mid 60s.
Tuesday Night... Mostly cloudy with a 40% chance of showers. Lows in the lower 50s.
POP = Probability of Precipitation
Lake Success Radar Loop
Use the map search tool if you want to place a location marker on the radar map...