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Township of Sparta, NJSparta, NJ 7-Day Night Weather Forecast
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Sparta, NJ Weather Forecast
Sparta, NJ Weather Forecast Date: 400 AM EDT Wed Sep 16 2026
The area/counties/county of: Sussex, including the city of Newton.or toggle through each period.
Today... Mostly sunny. Highs in the upper 70s. Southwest winds around 5 mph.
Tonight... Partly cloudy in the evening, then becoming mostly cloudy. Not as cool with lows in the mid 60s. Southwest winds around 5 mph.
Thursday... Partly sunny in the morning, then becoming mostly cloudy. Humid with highs around 80. South winds around 5 mph.
Thursday Night... Mostly cloudy with a 30% chance of showers. Humid with lows in the lower 60s. Southwest winds around 5 mph, becoming west after midnight.
Friday... Mostly sunny. Highs in the upper 70s. Northwest winds around 5 mph.
Friday Night... Mostly clear in the evening, then becoming partly cloudy. Cooler with lows in the upper 40s.
Saturday... Mostly sunny. Highs in the upper 60s.
Saturday Night... Mostly cloudy. A chance of showers in the evening, then showers likely after midnight. Lows in the lower 50s. Chance of rain 60%.
Sunday... Showers likely. Highs in the upper 60s. Chance of rain 70%.
Sunday Night... Mostly cloudy. Showers likely, mainly in the evening. Lows in the lower 50s. Chance of rain 70%.
Monday... Mostly cloudy with a 50% chance of showers. Highs in the upper 60s.
Monday Night... Mostly cloudy with a 50% chance of showers. Lows in the lower 50s.
POP = Probability of Precipitation
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