Nor’easter Could Bring Gusty Winds and Rough Coastal Conditions to Plymouth County October 21–22

PLYMOUTH COUNTY, MA — A coastal nor’easter is expected to pass offshore of Massachusetts on Wednesday, October 21, and Thursday, October 22, bringing gusty winds, rough seas and the potential for beach erosion along the South Shore.

Although the storm is expected to remain offshore, coastal communities in Plymouth County could experience breezy conditions, increased cloud cover and occasional showers, particularly in southeastern Massachusetts.

The National Weather Service’s Boston/Norton forecast office says the storm’s track should limit its impacts on land, while hazardous marine conditions remain a primary concern. “National Weather Service forecast discussion” (https://marine.weather.gov/product.php?format=TXT&glossary=0&issuedby=BOX&product=AFD&site=CHS&version=1)

What Plymouth County residents should know

Communities including Plymouth, Marshfield, Duxbury, Scituate, and Hull should pay attention to changing coastal conditions as the storm approaches.

Potential concerns include:

• Gusty winds: Stronger gusts are possible along the coast, especially Wednesday.
• Rough surf: Large waves and pounding surf could affect exposed beaches and shorelines.
• Beach erosion: Repeated waves may erode vulnerable sections of the coastline.
• Scattered showers: Some showers could reach southeastern Massachusetts, although widespread heavy rain is not currently expected.
• Boating hazards: Rough seas and strong winds could create dangerous conditions for small boats and other marine traffic.

A coastal weather report published by Boston 7News on Tuesday indicated that wind gusts across southeastern Massachusetts could reach 35–45 mph Wednesday, with the strongest winds expected across Cape Cod and the Islands. Coastal Plymouth County could also experience breezy conditions. “Boston 7News forecast” (https://whdh.com/news/ocean-storm-fringe-effects/)

Will there be coastal flooding?

Major coastal flooding is not currently the primary concern in the available forecast. Lower astronomical tides are expected to help limit coastal flooding potential, according to the Boston 7News report.

However, rough surf and beach erosion remain possible. Residents near exposed shorelines should monitor updated forecasts, particularly if conditions change.

What about Thursday?

The storm is expected to move away from the region Thursday, with winds gradually shifting and conditions beginning to improve. Some lingering breezy weather or a coastal shower may still occur before calmer weather returns later in the week.

How to stay prepared

Residents should secure loose outdoor items, use caution near seawalls and exposed beaches, and avoid entering the water during hazardous surf conditions. Boaters should check marine forecasts before heading out.

Forecasts can change as the storm’s track becomes clearer. Residents should check official advisories before making weather-related travel or boating decisions.

Stay informed: Visit the “Plimoth Today Weather Center” (https://plimothtoday.com/weather-center/) for local weather information and updates affecting Plymouth County and the South Shore.

This report is based on forecast information available October 20, 2026. Conditions and potential impacts may change as new forecasts are issued.