New Jersey residents can finally welcome the crisp air of autumn this week as summer-like warmth makes its exit. After a couple of lingering humid days on Monday and Tuesday, a strong cold front will sweep across the state and deliver the true feel of fall by midweek. Northern New Jersey may notice the shift earlier, but by Wednesday morning, the cooler, drier air will be firmly in place from Sussex County down to Cape May.
This transition is driven by a powerful setup in the atmosphere. A strong ridge of high pressure over Canada, combined with another broad system sliding into the Northeast, is funneling cool northern air straight into the Garden State. That push of air will not only bring a noticeable temperature drop but also block tropical systems from threatening the East Coast.
While storms Humberto and Imelda continue to dance near Bermuda, neither poses a risk to New Jersey. Humberto is expected to stay west of Bermuda, brushing the island with some fringe effects, while Imelda is forecast to veer away thanks to the high-pressure block in place. For New Jersey, that means no tropical impacts this week—the only headline is the arrival of fall weather.
Residents should prepare for the shift by breaking out sweaters, light jackets, and hoodies. Brisk winds midweek will enhance the chill, making it feel even colder than the actual temperatures. For those keeping an eye on seasonal patterns, this cold front sets the stage for classic autumn conditions across the state. Stay updated with local details through the New Jersey weather report.
Day-by-Day Forecast for New Jersey
Monday, September 29
Temperatures will climb into the mid-to-upper 70s across most of New Jersey. Northern areas should see clearer skies and lower humidity, while southern sections remain cloudier and more humid. Winds will stay light out of the northeast. Overnight lows range from the low 50s in North Jersey to mid-60s along the South Jersey coast.
Tuesday, September 30
Expect another warm day with highs in the mid-to-upper 70s statewide under a mix of sun and clouds. Coastal regions may face rough surf and hazardous rip currents, so beachgoers should use caution. Winds will blow lightly from the north-northeast but may pick up along the shoreline. Overnight lows cool to the 40s in North Jersey’s higher elevations and hover near 60 by the shore.
Wednesday, October 1
This marks the real arrival of fall. Highs settle into the mid-to-upper 60s, with a few inland spots reaching just over 70. Skies stay mostly sunny, but the north-northeast winds will be gusty—20 to 30 mph at times, especially along the coast. Lows tumble into the low 40s across most of New Jersey, with shore towns holding closer to 50.
Thursday, October 2
Highs remain in the mid-to-upper 60s, but the air feels crisp and refreshing. Expect a mix of sunshine and flat-bottomed clouds drifting in with a light northeast breeze. Nighttime brings some of the chilliest conditions of the week, with lows dipping into the upper 30s in the higher terrain of North Jersey and interior sections of the Pine Barrens. Most of the state will cool into the 40s, while coastal areas remain near 50.
Friday, October 3
Temperatures again top out in the mid-to-upper 60s, with a few locations climbing into the low 70s. Skies will be partly sunny, and winds relax, shifting to a light southeast flow. Overnight temperatures range from the low 40s in the north to around 50 in South Jersey.
Looking Ahead to the Weekend
Early indications point to a beautiful fall weekend. Saturday should see highs in the mid-70s, while Sunday warms into the upper 70s, with a chance of a few southern spots reaching 80. Low humidity will provide that classic autumn feel, and overnight lows in the 40s and 50s will keep mornings crisp. Best of all, the forecast looks dry with no tropical threats on the horizon for New Jersey or the East Coast.
The season has finally turned, and residents can expect the next several weeks to bring cool mornings, comfortable afternoons, and the start of changing foliage across the state. Keep an eye on the latest weather reports to stay prepared as New Jersey embraces autumn in full.
