Boston woke up under a stubborn marine layer this morning, with low clouds, patchy to dense fog, and temperatures stuck in the upper 40s. Visibility is poor in spots along the waterfront and through low-lying neighborhoods, so expect slower commutes. The afternoon high should top out near 49°F with a light northeast breeze around 5 to 10 mph.
What To Expect Today And Sunday
Fog is likely to hang on into late morning before lifting into a mostly cloudy day. The real action arrives Sunday, when a stronger system brings a steady shield of rain. Forecasters expect showers to be widespread, with about a quarter to a half inch of rain possible and a chance for brief heavy downpours. Behind the front, winds shift and pick up, with breezy conditions and cooler air settling in overnight into Monday, according to NWS Boston/Norton.
Coastal Splashover Possible During Sunday Morning High Tide
High astronomical tides combined with persistent onshore flow could lead to splashover or minor flooding on exposed shore roads during Sunday morning’s high tide, especially along low-lying stretches south of the city. Shoreline residents and drivers should be ready for spray and brief coastal inundation at vulnerable spots and move parked cars back from the water when possible. Check local tide timing and projected tide levels before heading to the waterfront, per NOAA Tides & Currents.
Flights, Ferries And Boaters
Thick fog and low ceilings early today may trigger delays at Logan and other regional airports, with IFR to LIFR conditions expected before some improvement late this morning. Ferry crossings and small-boat trips will be dealing with a soupy harbor early, then choppier conditions Sunday as winds increase behind the front. Offshore waters could flirt with Small Craft Advisory criteria late Sunday into Monday, so mariners should keep an eye on updated briefings.
Plan Ahead
Build extra time into morning travel, use low beams in fog, and avoid driving through any standing coastal water. Keep tabs on updates through the weekend, especially Sunday morning tide reports, and plan for cooler, breezier weather to hang around into early next week.
