Westchester winters are weird. Honestly, one day you're scraping thick ice off your windshield in White Plains, and the next, it's a "balmy" 36 degrees and you’re wondering if you actually need the heavy parka. If you're looking at the weather in westchester county 10 days out, you've probably noticed a trend: it's basically a roller coaster of "mostly cloudy" days and sudden dips into the teens.
Right now, as of January 18, 2026, we’re sitting in a deep freeze.
The current temperature is a biting 27°F. There’s a southwest wind moving at 2 mph, which sounds gentle, but with 92% humidity, that damp cold just sinks into your bones. It's cloudy. It's dark. And if you're planning your week, you’re going to want to keep the shovel handy because Sunday is bringing a legitimate snow threat.
The 10-Day Outlook: What’s Actually Happening
Today, Sunday, January 18, is the big one for the immediate forecast. We're looking at a high of 34°F and a low of 21°F. There is a 35% chance of snow during the day, which jumps to 40% tonight. The National Weather Service even has a Winter Weather Advisory in effect until 8:00 PM tonight. You can expect about 1 to 3 inches of accumulation if you’re in the southern part of the county, while spots like northern Westchester might see a bit more.
Monday, January 19, which is Martin Luther King Jr. Day, offers a bit of a break from the flakes. It’ll be partly sunny with a high of 31°F. But don't let the sun fool you. The wind is picking up from the southwest at 9 mph, and the low is dropping to 18°F.
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Then Tuesday hits. Tuesday, January 20, is going to be the coldest day of the stretch. We’re talking a high of only 23°F and a low of 10°F. It’ll be sunny, sure, but that’s "polar vortex" style sun where the air feels like needles.
Mid-Week Shifts and More Snow
By Wednesday, January 21, the temperature "climbs" back to 29°F. It’s going to stay mostly cloudy throughout the day and night, with lows hovering right at 10°F again. It's a dry stretch, though, with only a 10% chance of any precipitation.
Thursday, January 22, actually looks somewhat decent. We might hit 36°F. It’ll be partly sunny, and while the night drops to 17°F, it's the warmest we'll feel for a while.
Friday, January 23, returns to the gloom. Mostly cloudy skies, a high of 28°F, and a low of 16°F.
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Then we look at next weekend:
- Saturday, Jan 24: Snow showers are back. High of 31°F, 25% chance of snow during the day.
- Sunday, Jan 25: Partly sunny but colder. High of 23°F, with snow showers likely at night (20% chance).
- Monday, Jan 26: Partly sunny, high of 24°F, low of 10°F.
- Tuesday, Jan 27: Bitterly cold. High of 20°F, low of 10°F, with northwest winds whipping at 16 mph.
Why Westchester Weather is So Hard to Predict
If you’ve lived here long enough, you know the Sound plays a massive role. Coastal towns like Mamaroneck or New Rochelle often see rain when Yorktown is getting buried in six inches of powder. This 10-day window is a perfect example of that "Miller-B" storm pattern experts like those at NY NJ PA Weather talk about. These storms redevelop off the coast, and if the track shifts just twenty miles east, we get nothing. If it hugs the coast? Get the salt ready.
The Farmers’ Almanac called this season a "wild ride," and honestly, they weren't lying. Between the La Niña influence—which usually brings wetter winters—and the stratospheric disruptions we’ve been seeing, the "normal" winter is a thing of the past.
Most people get wrong that a "sunny" forecast in January means a nice day. In Westchester, a clear sky in the dead of winter usually means there’s no cloud cover to trap the heat, leading to those brutal 10°F nights we’re seeing on the 20th and 27th.
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Survival Tips for the Next 10 Days
Don't just look at the high temperatures. Look at the wind. That 16 mph wind on January 27 is going to make 20°F feel like 5°F.
- Check your tire pressure. These 20-degree temperature swings cause your "low pressure" light to pop on like clockwork.
- Salt early. With the snow showers forecast for Sunday night and again next Saturday, pre-treating your walkway makes a world of difference before that 10°F freeze turns slush into concrete.
- Watch the humidity. 92% humidity at 27°F is "heavy" air. It’s the kind of weather where you feel the cold in your joints more than a dry 15-degree day.
Basically, keep your layers handy. We’re heading into a stretch where the mercury won't even sniff the 40s, and the wind chill is going to be the real story for the end of the month.
Actionable Next Steps
Check your home's heating oil or propane levels now before the Tuesday deep freeze hits. If you're commuting on the Metro-North, expect minor delays during the Sunday snow transition, as the 7 mph north winds can sometimes mess with overhead lines when mixed with heavy, wet snow. Stick to the 10-day trend: it’s staying cold, it’s staying gray, and the real winter has finally arrived in Westchester.