Watchung New Jersey Traffic 2024-09-20 Roadnow Click for Real Time Traffic Weather | Gas | Restaurants | Hotels | Car Repair | Convenience Stores Cities close to Watchung New Jersey Lemoyne, PA 4.15 mi New Cumberland, PA 4.82 mi Harrisburg, PA 5.92 miInterstate highway exits close to Watchung New Jersey Exit 40b, i83 3.34 mi Exit 41a, i83 3.64 mi Exit 40a, i83 3.84 miInterstate highways close to Watchung New Jersey i83 map 3.34 mi i76 map 4.23 mi i81 map 9.23 miState roads close to Watchung New Jersey US 15 PA map 1.20 mi PA 581 map 1.88 mi PA 641 map 2.82 mi