You’ve likely been there—standing in the driveway, looking at a sky that’s "mostly cloudy" but feeling a breeze that says otherwise. When you’re looking up the weather Nashua NH hourly, you aren't just looking for a number. You’re trying to figure out if you need the heavy parka for the walk into Greeley Park or if that southwest wind is going to make the afternoon feel a lot warmer than the thermometer suggests.
The reality of January weather in southern New Hampshire is that it’s rarely just one thing. It's a game of layers and timing.
The Current State of Affairs in Nashua
Right now, Nashua is sitting at a crisp 25°F. But honestly? That number is a bit of a lie. With a 13 mph wind coming out of the west, the "feels like" temperature is actually a biting 14°F. If you’re heading out late tonight, keep in mind that the humidity is hanging around 52%, which keeps the air feeling dry but sharp.
The sky is mostly cloudy, and there’s a small 10% chance of snow through the overnight hours. It’s the kind of night where the stars might peek through for a second before the cloud cover tucks the city back in.
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Breaking Down the Hourly Shift
Weather doesn't happen in a vacuum, and in Nashua, the proximity to the Merrimack River and our spot in the valley often creates micro-shifts that a general state forecast misses.
- Morning Transition: After a low of 16°F overnight, the morning starts with a slow climb.
- Midday Peak: We’re looking at a high of 46°F today. That’s a massive swing from the morning chill.
- Evening Descent: As the sun dips, those temperatures will plummet back toward the teens.
Basically, you're looking at a 30-degree spread in a single day. That is classic New England. It’s why you see people wearing shorts and a hoodie at the Pheasant Lane Mall while someone else is in a full winter coat. Neither of them is necessarily wrong; they just caught a different hour of the forecast.
What Most People Get Wrong About Nashua Forecasts
A lot of folks check their phone, see a "20% chance of snow," and assume it won’t happen. In the weather Nashua NH hourly data, that percentage often refers to a "clipper" or a quick-moving system coming down from Canada. Today, we have a 20% chance of snow during the daylight hours, dropping to 10% tonight.
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Is it going to be a blizzard? No. But it might be enough to glaze the turns on Main Street or make the commute up Amherst Street a little slicker than you’d like.
Why the Wind Direction Matters
Today's wind is coming from the southwest at 11 mph. This is actually a bit of a gift. A southwest wind in January usually acts like a heat lamp for southern New Hampshire, helping us hit that 46°F high. If that wind were coming from the North or Northwest, we'd be lucky to break freezing.
Real Expertise: Navigating the "January Thaw"
Long-term climate data for Nashua shows that January 16th is historically one of the clearest days of the winter. We are right on the edge of that. While we have "partly sunny" conditions during the day, the clouds are stubborn.
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Experts at the National Weather Service in Gray, Maine—who handle our specific zone—often point out that Nashua’s elevation (about 180 feet at Boire Field) means we often stay just a few degrees warmer than our neighbors in the Monadnock region. This can be the difference between a rainy afternoon and a messy icing event.
Actionable Steps for Today
Don't let the 46°F high fool you into leaving the house under-prepared.
- Morning Commute: Dress for the 14°F wind chill. Your car will take longer to warm up, and the west wind will hit you hard the moment you step out.
- Afternoon Errands: This is your window. If you have outdoor tasks, do them between 1:00 PM and 3:00 PM when the southwest breeze and sunshine are working in your favor.
- Night Driving: With the low hitting 16°F and some leftover moisture from that 20% snow chance, watch for "black ice" on shaded side streets.
The weather Nashua NH hourly updates are your best tool for navigating a day that starts in the freezer and ends in a mild thaw. Keep an eye on the wind speed; as long as it stays around 11-13 mph, the chill will remain the dominant factor regardless of what the "actual" temp says.