Weather
Cape Cod, MA Weather: 40 MPH Gusts Possible Tuesday, Wednesday Oct 20-21
Boston, MA – An offshore storm could bring gusty winds reaching 40 mph, scattered showers and rough ocean conditions to portions of southeastern Massachusetts this week, with the greatest impacts expe
By Natalie Rhodes · 2026-10-18T20:57:00.249Z
Boston, MA – An offshore storm could bring gusty winds reaching 40 mph, scattered showers and rough ocean conditions to portions of southeastern Massachusetts this week, with the greatest impacts expected around Cape Cod and the Islands on Tuesday and Wednesday.
According to the National Weather Service in Boston, forecasters are monitoring a developing offshore weather system that could produce unsettled conditions along the southeastern Massachusetts coast while much of the surrounding region remains relatively dry.
The exact storm track remains uncertain, meaning the location and intensity of the strongest winds and showers could change as the system approaches.
Winds Could Gust to 40 MPH Tuesday and Wednesday Monday, October 19, is expected to bring mainly sunny skies across southern New England, with breezy conditions developing in southeastern Massachusetts.
Afternoon temperatures will range from 57 to 63 degrees, with overnight lows between 37 and 47 degrees.
Tuesday brings increasing wind concerns, particularly across Cape Cod, Martha's Vineyard and Nantucket.
The National Weather Service forecasts potential wind gusts between 20 and 40 mph, with the strongest winds most likely near the Cape and Islands.
Showers will also be possible in these coastal communities.
Wednesday could bring another round of gusty conditions, with winds potentially reaching 40 mph in the same areas.
High temperatures Wednesday are expected between 55 and 60 degrees, with overnight lows falling between 33 and 47 degrees.
Rough Seas and Coastal Impacts Possible In addition to gusty winds, the offshore storm could generate rough seas along portions of the Massachusetts coastline.
Marine conditions may become increasingly hazardous depending on the storm's eventual track and strength.
Residents and mariners around Cape Cod and the Islands should monitor forecast updates as confidence in the storm's impacts improves.
What Happens Thursday? By Thursday, breezy conditions may continue, with additional showers possible around Cape Cod and the Islands.
High temperatures are forecast between 57 and 64 degrees.
For now, the National Weather Service expects much of southern New England to remain dry, with the greatest potential for unsettled weather concentrated along the southeastern coast.