You’ve probably stepped outside this morning and felt that familiar January bite. It’s 34°F right now in Trenton, but honestly, that number is a bit of a lie. With the wind kicking up from the southwest at 6 mph, it actually feels like 29°F. If you didn't grab the heavy coat, you're likely regretting it by the time you hit the end of your driveway.
We're looking at a messy mix today. Partly sunny skies are currently teasing us, but don't let that fool you into thinking the car wash is a good idea.
Trenton Weather for Today: The Rain-Snow Dilemma
Most people see a forecast for "rain and snow" and assume it means a winter wonderland. In Trenton, it usually just means "gray and damp." Today follows that tradition perfectly. We are heading toward a high of 38°F, which is just enough to keep things from getting truly pretty.
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The chance of precipitation sits at 45% during the daylight hours. It’s that annoying kind of weather where it can’t decide if it wants to be a flurry or a drizzle. Basically, expect the roads to stay greasy.
What to expect tonight
As the sun sets at 4:59 pm, the temperature is going to dip back down toward a low of 30°F. The clouds aren't going anywhere. We’ve still got a 35% chance of snow showers overnight. It’s not enough for a shovel, but definitely enough to make tomorrow morning's walk to the car a little slippery.
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The humidity is hanging high at 87% right now. That’s why the air feels so heavy and "raw," a word my grandmother always used for these Jersey winters. It just clings to you.
Why the UV Index Matters (Even in January)
You might think the sun is powerless right now. You'd be mostly right. The UV index is sitting at a flat 0. You aren't getting a tan today. Still, the lack of sun doesn't mean you should ignore the sky. The southwest wind at 8 mph later today will keep that "feels like" temperature consistently lower than the actual thermometer reading.
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Historically, Trenton in January is a bit of a gamble. While 38°F is our high today, we’ve seen years where it’s a balmy 50°F and others where the pipes are screaming at 10°F. We’re sitting right in the average pocket today.
Practical steps for the next few hours:
- Layer up: That 5-degree difference between the temp and the "feels like" is exactly where people catch a chill.
- Check your wipers: With a 45% chance of a rain-snow mix, you don't want to find out your blades are streaking when you're on Route 1.
- Pet safety: 30°F at night is cold enough to bring the outdoor cats in or at least check their water bowls for ice.
- Drive for the "grease": This temp range (34°F to 38°F) creates the slickest road conditions because the ice is constantly melting and refreezing.
The humidity will drop slightly to 73% as the day progresses, but it’s still going to feel damp. If you have plans at the Sun National Bank Center or just heading downtown, keep an umbrella in the passenger seat. You probably won't need it for a downpour, but you'll definitely want it for that annoying winter mist.