Weather WorldLake Tappan, NJ 7-Day Night Weather Forecast
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Lake Tappan, NJ Weather Forecast
Lake Tappan, NJ Weather Forecast Date: 655 AM EDT Tue Aug 04 2026
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Today... Mostly sunny. Highs in the mid 80s. North winds around 5 mph, becoming east this afternoon.
Tonight... Mostly cloudy. Lows in the upper 60s. South winds around 5 mph, becoming north after midnight.
Wednesday... Partly sunny. A chance of showers with a slight chance of thunderstorms in the afternoon. Highs in the lower 80s. East winds around 5 mph, becoming southeast around 5 mph in the afternoon. Chance of rain 40%.
Wednesday Night... Mostly cloudy. A chance of showers with a slight chance of thunderstorms in the evening, then a chance of showers after midnight. Humid with lows in the lower 70s. South winds around 5 mph. Chance of rain 40%.
Thursday... Partly sunny. A slight chance of showers in the morning, then a chance of showers with a slight chance of thunderstorms in the afternoon. Humid with highs in the upper 80s. Southwest winds 5 to 10 mph. Chance of rain 50%. Heat index values up to 100.
Thursday Night... Mostly cloudy with a chance of showers and thunderstorms in the evening, then partly cloudy after midnight. Lows in the mid 70s. Chance of rain 50%.
Friday... Partly sunny. A chance of showers and thunderstorms in the afternoon. Highs around 90. Chance of rain 50%. Heat index values up to 100.
Friday Night... Mostly cloudy with a chance of showers and thunderstorms. Lows in the lower 70s. Chance of rain 40%.
Saturday... Partly sunny. A chance of showers in the afternoon. Highs in the upper 80s. Chance of rain 40%. Heat index values in the mid 90s.
Saturday Night... Mostly cloudy with a chance of showers in the evening, then partly cloudy after midnight. Lows in the lower 70s. Chance of rain 40%.
Sunday... Mostly sunny. Highs in the upper 80s. Heat index values in the mid 90s.
Sunday Night... Mostly clear. Lows in the lower 70s.
POP = Probability of Precipitation
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