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Municipality of Princeton, NJPrinceton, NJ 7-Day Night Weather Forecast
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Princeton, NJ Weather Forecast
Princeton, NJ Weather Forecast Date: 400 PM EDT Sat Oct 17 2026
The area/counties/county of: Mercer, including the city of Trenton.or toggle through each period.
Tonight... Partly cloudy this evening, then becoming mostly clear. Cooler with lows in the mid 30s. North winds 10 to 15 mph. Gusts up to 30 mph this evening.
Sunday... Sunny. Highs in the upper 50s. Northeast winds 5 to 10 mph with gusts up to 20 mph.
Sunday Night... Clear. Lows in the upper 30s. East winds around 5 mph, becoming north after midnight.
Monday... Sunny. Highs in the lower 60s. Northeast winds 5 to 10 mph.
Monday Night... Mostly cloudy. Lows in the lower 40s. North winds 5 to 10 mph.
Tuesday... Mostly sunny. Highs in the upper 60s.
Tuesday Night... Mostly clear. Lows in the mid 40s.
Wednesday... Sunny. Highs in the lower 60s.
Wednesday Night... Partly cloudy. Lows in the lower 40s.
Thursday... Mostly sunny. Highs in the mid 60s.
Thursday Night... Partly cloudy. Lows in the mid 40s.
Friday... Mostly sunny. Highs in the mid 60s.
Friday Night... Partly cloudy. Lows in the mid 40s.
POP = Probability of Precipitation
Princeton Radar Loop
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