Weather for Pennsauken NJ: Why This South Jersey Town Is a Climate Chameleon

Weather for Pennsauken NJ: Why This South Jersey Town Is a Climate Chameleon

If you’ve lived in Pennsauken for more than a week, you know the drill. You walk out the door in a heavy parka only to find yourself sweating by noon. Honestly, the weather for pennsauken nj is just unpredictable. It’s the kind of place where the Delaware River acts like a giant thermostat that someone keeps messing with.

People think New Jersey weather is all the same. It isn't. Pennsauken sits in this weird pocket between the urban heat of Philadelphia and the cooling breezes (or biting winds) of the river. This creates a microclimate that can be tricky for even the best meteorologists to pin down.

What’s Happening Right Now?

Today is Friday, January 16, 2026, and it’s a classic example of "South Jersey Chill." Right now in Pennsauken, it is 34°F. That sounds manageable until you factor in the southwest wind blowing at 8 mph, which makes it feel more like 28°F.

It’s partly sunny for the moment, but don't get too comfortable with the blue skies. The humidity is sitting at 37%, and we’ve got a tiny 5% chance of snow currently. Basically, it's a dry, cold winter afternoon. If you’re heading out to the Pennsauken Mart area or just running errands along Route 130, keep those gloves handy.

The Short-Term Forecast

The rest of today stays fairly stable with a high of 34°F and a low of 22°F. Mostly sunny skies will transition into a messy mix of rain and snow overnight.

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  • Tonight: The chance of precipitation jumps to 35%, mainly snow.
  • Saturday, Jan 17: Expect a high of 41°F and a low of 32°F. It’s going to be a soggy one with a 45% chance of rain and snow throughout the day.
  • Sunday, Jan 18: Temperatures dip back to a high of 35°F. We’re looking at snow showers during the day (35% chance) followed by a partly cloudy night.

Why Weather for Pennsauken NJ Is So Moody

South Jersey weather is basically a tug-of-war. On one side, you have the Atlantic Ocean trying to send moisture our way. On the other, the Appalachian Mountains to the west act as a bit of a barrier, but they also funnel cold air down into the Delaware Valley.

Pennsauken is caught right in the middle. We get the "Urban Heat Island" effect from Philly, which often means we’re a few degrees warmer than the suburbs further out in Burlington County. That tiny temperature difference is often the reason why Cherry Hill gets five inches of snow while we just get a cold, slushy rain.

The River Factor

The Delaware River is a massive heat sink. In the early winter, the water is still relatively warm from the summer, which can actually prevent snow from sticking near the waterfront. By late January and February, however, that water turns icy. When a cold wind blows across the river, it creates a "raw" feeling that hits you right in the chest.

Seasonal Survival in the 08110

Most people think January is the worst, but historically, the coldest day in Pennsauken usually hits around January 30th. The average high is 40°F and the low is 26°F. But averages are just numbers. We've seen winters where the ground stays frozen for a month and others where we’re wearing shorts in February.

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Summer is a Different Beast

July is the hottest month, where the average high hits 86°F. But let’s be real: it’s the humidity that kills you. Pennsauken in July feels like walking through a warm, wet blanket. The proximity to the river and low-lying marshy areas means the dew point often stays high, making "feels like" temperatures soar into the 90s or even 100s.

Rainfall and Flooding Risks

Pennsauken isn't a desert. We get about 44 to 46 inches of rain a year. Most of that comes in July, which is surprisingly the wettest month on average.

We’ve seen what happens when the infrastructure gets overwhelmed. Back in 2021, Post-Tropical Cyclone Ida shut down Route 30 near the Airport Circle because of flash flooding. It’s a reminder that even though we aren't "at the shore," the rising sea levels and sinking land in Jersey are making "sunny day flooding" a real thing for communities near tidal rivers.

Dealing with the 10-Day Outlook

Looking further ahead into late January 2026, we’re seeing a significant cold snap.

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  1. Monday, Jan 19: Sunny but cold. High of 36°F and a low of 18°F.
  2. Tuesday, Jan 20: This is the big dip. High of only 22°F and a low of 17°F.
  3. Wednesday, Jan 21: Slightly warmer at 37°F, but snow showers are possible at night.

By next weekend, January 24th and 25th, temperatures hover around the high 30s with a consistent 20-50% chance of a "frozen mix." That's the most annoying kind of Pennsauken weather—too warm for a winter wonderland, too cold to be comfortable.

Practical Advice for Locals

Keep your car's washer fluid topped off. The salt and brine they use on Route 130 and Route 38 will turn your windshield into an opaque mess within minutes.

Also, watch the wind. Southwest winds are common here, but when they shift to the northwest, as they will on January 26th at 15 mph, the wind chill becomes the real story. If you're doing any outdoor work or heading to a Pennsauken High game, layers are your only friend.

Check your gutters now. With the mix of rain and snow coming this Saturday, any clogs will lead to ice dams. It’s a boring Saturday chore, but it beats a leaky ceiling.

Stay weather-aware, especially when the forecast mentions "mixed precipitation." In Pennsauken, that’s usually code for "the roads are going to be a disaster."