Significant Weather Outlook: Monday, March 2, 2026 9 AM
Weekly Significant Weather Outlook
Looks like a weather regime change lies ahead for this week as an upper-level ridge of high pressure over the southeastern U.S. becomes stronger and attempts to shunt storms to pass west and north of southern New England. Complicating this picture somewhat is a series of surface high pressure areas that cross southern Canada and may cause low level cold air to intrude further south than the upper-level pattern would imply. At this time, all weather systems that may impact southern New England look to be relatively weak and progressive.
Snow to Sleet/Freezing Rain to Just Rain Tuesday Afternoon and Night
Snow will likely spread across southern New England mid to late Tuesday afternoon and change to sleet or freezing rain during Tuesday evening and then to just rain most areas sometime during the evening. Freezing rain may persist, however, along and north of the Route 2 corridor later into Tuesday night given the presence of cold antecedent air near the surface. Snow accumulation before a change to mixed precipitation and just rain is expected to be light – an inch or less in most locations except perhaps 1 to 2 inches over the Berkshires and Worcester Hills. This is unlikely to be a major winter storm, but travel could be somewhat hazardous for a time late Tuesday afternoon and evening, especially on untreated roads.
Looking Beyond
Looks like milder temperatures and a series of light to moderate precipitation events may affect southern New England for the rest of the week beyond Tuesday into the weekend. However, a system may have some wintry impact on southern New England Friday morning when there may be enough low-level cold air for a period of freezing rain across interior sections. Surface high pressure moving offshore into the western Atlantic (Bermuda high look to the pattern) may induce relatively warm temperatures this coming weekend to reach well into the 50s.
Longer range projections at this time indicate a reasonably orderly runoff from melting snow filling up streams but shy of significant flooding. Will be continuing to monitor this closely over the coming couple of weeks or so, since a series of heavy rain events could instigate flooding concerns.
About this Blog and Disclaimer
The National Weather Service monitors the weather 24/7 and updates forecasts, watches, and warnings as necessary. For most of southern New England, refer to your local Weather Forecast Office for the latest forecast/warning information at weather.gov/box. For information from other Weather Forecast Offices, go to weather.gov and click on the location of interest on the map.
A blog is issued when there is a potential risk of hazardous weather to southern New England and serves to provide background information regarding the significant weather with somewhat of an educational slant. In the case of hurricanes, the author will attempt to issue a message when any portion of the United States coastline may be seriously impacted. It’s intended to complement and not serve as an alternative to official forecasts issued by the National Weather Service. Readers are urged to check National Weather Service forecasts and warnings for the most timely and updated weather information. This weather message is solely produced by the listed author and does not constitute an official product of the Blue Hill Observatory and Science Center (BHOSC).
The frequency of this blog will depend upon the nature of the weather threat and availability of the author. Thus, for the latest information on weather forecasts and warnings, refer to the National Weather Service, which monitors and forecasts the weather 24/7.
Blue Hill Observatory and Science Center (BHOSC)
The BHOSC maintains a continuous daily observation record that dates from February 1, 1885 without interruption and provides educational information on weather and climate to area students and the community at large. Your support of BHOSC is much appreciated and enables this nonprofit organization to maintain the long-term climate record at the Blue Hill Observatory (longest continuous record in North America) and provide valuable educational resources on weather and climate via outreach to schools, site visits/tours, webinars, and conferences. For more information on the Blue Hill Observatory and Science Center, explore bluehill.org.
Message issued March 2, 2026 by:
Bob Thompson
Retired National Weather Service Meteorologist
Blue Hill Observatory and Science Center Board member
