Honestly, if you’re living in or passing through Fairfield County right now, you know the drill. You look out the window in Newtown and it’s that specific shade of New England gray that feels like it’s been there since 1994. But today, Sunday, January 18, 2026, isn't just another "cold" day. We’re actually sitting in the middle of a light snow event that’s making the commute along Route 25 a bit more interesting than most of us would like for a Sunday morning.
Right now, the temperature is hovering at 31°F. It’s basically right at that freezing threshold where the snow stays fluffy enough to look pretty but heavy enough to make the driveway a chore. Humidity is sitting at a thick 92%, which is why the air feels so heavy. You’ve probably noticed the wind isn't doing much—it's just a whisper from the southwest at 1 mph.
Basically, it's a "stay inside and drink tea" kind of morning.
The Reality of the Weather Forecast Newtown CT Today
People often think January in Connecticut is just a monolithic block of ice. It’s not. Today is a perfect example of the nuance. While the current condition is light snow, the forecast for the rest of the day is calling for a high of 34°F. That’s just warm enough to turn some of this into a slushy mess by noon.
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If you’re planning on heading out to Caraluzzi’s or grabbing a coffee downtown, keep an eye on the precipitation. We’ve got a 74% chance of snow during the daylight hours. It’s not a blizzard, but with the cloud cover remaining stubborn, visibility isn't great.
What to Expect Tonight
By the time the sun sets—which is early these days, around 4:50 PM—the temperature is going to drop back down to a low of 25°F.
- Condition: Snow showers will likely continue into the evening.
- Accumulation: We’re looking at about 1 to 3 inches total by the time it all tapers off.
- Wind Shift: The wind is going to pick up slightly, coming from the north at about 4 mph, which will make that 25 degrees feel a lot more like 15.
It's the kind of night where "black ice" becomes the phrase of the hour. Any of that 34-degree slush from this afternoon is going to freeze solid the second the temperature dips.
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Why Newtown’s Microclimate is Weird
Newtown is a bit of a geographical oddball. Because of the elevation changes—ranging from the lower bits near the Pootatuck River to the higher ridges near Taunton Lake—you’ll often see different conditions just a few miles apart.
Earlier today, a station at Danbury Municipal Airport was reporting slightly different visibility than what we’re seeing in the heart of Newtown. This happens because the hills around here tend to trap cold air in the valleys. If you’ve ever wondered why your neighbor has three inches of snow and you only have a dusting, that’s usually why.
Historically, January is our coldest month. We usually average a high of 35°F and a low of 21°F. So, being at 34/25 today means we are actually tracking remarkably close to the historical norm, despite the "clipper system" currently moving through the Northeast.
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Looking Ahead: The "Deep Freeze"
Don't get too comfortable with these low-30s temperatures. The extended outlook suggests a much colder air mass is moving in behind this snow. By Tuesday, January 20, we’re looking at a high that might not even break 22°F.
Honestly, the "January Thaw" everyone hopes for doesn't seem to be on the immediate horizon.
Surviving the Sunday Slush
If you have to be out on the roads today, the main thing is the humidity and the freezing point. With the dew point sitting right at the air temperature, fog is a real possibility as the snow tapers off.
- Clear your roof: Seriously. With the high hitting 34°F, that snow is going to get heavy and then freeze into a block of ice tonight.
- Watch the walkways: The 92% humidity means surfaces are damp even where it hasn't snowed yet.
- Check the North wind: When it shifts tonight, the wind chill will drop the "RealFeel" significantly.
Newtown’s DPW is usually pretty on top of the main drags like South Main and Church Hill Road, but the back roads and steep driveways are going to be slippery until tomorrow morning.
Actionable Insight: If you haven't salted your walkway yet, do it before 4:00 PM today. Once the temp hits 25°F tonight, any standing water or slush will become a skating rink, and standard rock salt loses its effectiveness as it gets even colder later this week.