Massachusetts — Frigid air bites along the shoreline as ocean water creeps higher with the morning tide, pushing waves toward docks, seawalls, and low-lying streets.
A Weather Alert is in effect for coastal Massachusetts through early afternoon as a Coastal Flood Advisory targets Boston Harbor and surrounding communities. Water levels are expected to reach one to two feet above normal during peak high tide, enough to flood vulnerable shore roads, marina parking lots, and walkways near the water.
According to the National Weather Service, the greatest concern centers on the late-morning to midday high tide cycle. Minor flooding is possible along the North Shore, Boston Harbor, and parts of the South Shore. Splash-over may occur where seawalls face open exposure, especially during brief wave surges.
Temperatures remain firmly in winter mode. Readings hover in the teens this morning, with wind chills near zero. That cold locks any seawater onto pavement once it recedes. Slippery conditions may linger well after the tide pulls back, particularly on docks, ramps, and brick-lined waterfront streets.
Travel inland improves today as skies stay mostly sunny and dry. Highs reach the upper 20s, offering little melting. Tonight turns sharply colder, with lows dropping into the single digits. Any residual moisture freezes solid, increasing the risk for slips near coastal access points.
Tuesday brings calmer conditions. Sunshine returns, and highs climb just above 30. Midweek stays quiet and cold, though clouds increase late Wednesday. By Friday, a chance of snow re-enters the picture, followed by gusty winds heading into the Feb 6–8 weekend. That pattern could renew coastal concerns if tides align with onshore flow.
Residents should avoid flooded areas, secure waterfront property, and use caution near the shoreline today.
Five-Day Outlook for Boston, Massachusetts
• Today: Sunny, high 29
• Tuesday: Sunny, high 31
• Wednesday: Mostly sunny, high 32
• Thursday: Mostly sunny, high 28
• Friday: Chance of snow, high 29
