Boston woke up Tuesday, March 3, 2026, to partly sunny skies and temps near 20°F at Logan, but the calm start is not sticking around. By late morning, snow will slide in and then flip to rain near the coast this evening, setting up a messy couple of commutes and some classic New England slop.
Afternoon Snow, Changeover To Rain
Snow is expected to spread in from the southwest between about 11 a.m. and 5 p.m. Tuesday, March 3, 2026, with the best shot at light accumulation in the mid-afternoon. Most Boston neighborhoods are looking at a coating to 2 inches, with higher amounts north of I-90, while coastal spots should stay under an inch. South winds around 5 to 10 mph hold through the day before shifting tonight, and inland areas could see pockets of freezing rain or brief sleet. Isolated ice accretions up to one-tenth of an inch may develop on untreated surfaces, making things slick in a hurry, according to the National Weather Service.
Black Ice Risk For Wednesday Morning
Once the precipitation winds down overnight, light winds and leftover low-level moisture could team up to produce fog and patches of black ice for the Wednesday, March 4, 2026, morning commute. The main trouble spots will be untreated roads, sidewalks and bridges. Outside of that early hazard, Wednesday turns milder and mostly sunny, with highs near 50°F, so conditions should steadily improve through the day. Drivers and transit riders will want to allow extra time and keep an eye on alerts. The MBTA winter guide offers signup options for service updates along with practical tips for navigating winter weather.
Practical Tips
Build in some cushion for your Tuesday afternoon travel and again for the Wednesday morning rush, keep an ice scraper and a bit of salt handy, and assume any untreated steps and sidewalks could be icy. Boaters and ferry passengers should note that small craft advisories are in effect for some southern waters tonight into Wednesday and should check local marine forecasts before heading out. We will update this space this evening if timing or advisories change.
