Living in Amityville means you’re basically in a constant chess match with the Great South Bay. You’ve probably noticed it. One minute you're enjoying a crisp breeze off the water, and the next, a wall of fog is rolling in so thick you can't see the end of your own driveway. It’s localized. It’s weird. Honestly, it’s just Long Island.
If you’re checking the weather for amityville ny today, Sunday, January 18, 2026, things are getting a little messy.
Right now, it’s 34°F. That’s the official reading, but with a northeast wind kicking at 9 mph, it actually feels like 27°F. We’ve got light rain falling and humidity is sitting at a heavy 94%. Basically, it's that raw, damp cold that sinks into your bones.
Why the Great South Bay Changes Everything
The bay isn't just for scenery. It’s a massive thermal engine. During the winter, the water stays slightly warmer than the air, which can sometimes turn what should be a snowstorm into a slushy mess for those of us south of Merrick Road. But today? The cold is winning.
We’re looking at a 100% chance of precipitation today. It’s starting as light rain with a high of 34°F, but as the sun goes down, that rain is going to pivot. By tonight, we’re expecting snow showers. The temperature will drop to 28°F, and there’s a 91% chance of snow.
It’s not going to be a "bury your car" type of storm—most local reports are eyeing maybe an inch or so—but the transition is the part that catches people off guard. Wet roads plus freezing temperatures equal a skating rink by Monday morning.
The Week Ahead: A Temperature Rollercoaster
Don't get too attached to the slush. Monday, January 19, looks beautiful but biting. We’re talking full sun and a high of 33°F, but the wind is switching to the west at 14 mph. That’s going to clear out the clouds, leaving us with a low of 19°F overnight.
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Tuesday is the real reality check.
The high is only 23°F.
With a low of 16°F.
It’s going to stay sunny, but that’s "deceptive sun"—the kind that looks great through a window until you actually step outside and your nose hair freezes. Things moderate slightly by Wednesday and Thursday with highs reaching the upper 30s, but we’re staying in a cycle of "mostly cloudy" and "partly sunny" for the rest of the week.
The "Amityville Microclimate" Myth
People talk about the "Amityville Horror," but the real horror is trying to predict the snowfall line here. Because we’re coastal, we often miss the "Big One" that hammers places like Huntington or Smithtown. In January, our average high is usually around 40°F, while the lows hover near 27°F.
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But averages are just numbers.
The real experts—the folks who’ve lived here since before Sandy—know that the wind direction is the only stat that matters. A south wind brings the "salt air" and warmth; a north or northeast wind brings the bite. Today’s northeast wind is a classic setup for the damp, grey conditions we’re seeing.
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Practical Steps for the Next 48 Hours
Stop trusting the "high" temperature alone. If you're heading out to the village or walking near the docks, the "feels like" temp is your actual reality.
- Watch the Freeze: Since we have 100% rain today turning into 91% snow tonight, salt your walkways before the sun goes down. Once that 34°F drops to 28°F, whatever is wet will stay frozen until Monday afternoon.
- Wind Protection: Monday’s 14 mph west wind will make that 33°F feel like the teens. Layers aren't a suggestion; they're a requirement.
- Marine Check: If you have anything still near the water, keep an eye on the high tide. While we aren't seeing a major surge event, northeast winds can sometimes pile water into the canals.
Keep an eye on the sky tonight for that transition from rain to snow. It’s going to be a quick one.