Significant Weather Outlook: Monday, December 29, 2025 11 AM
Weekly Significant Weather Outlook
Strong Gusty Winds Late Tonight Through Tuesday Evening
Strong Wind Gusts Late Tonight Through Tuesday Evening
Very strong surface and upper low pressure over Ontario will drive a strong low-level jet across southern New England late tonight through Tuesday evening as colder air rushes in. Effective vertical mixing up to around 5000 feet will draw down to the surface strong northwest wind gusts of 45 to 55 mph throughout southern New England with possibly gusts to around 60 mph across exposed areas of the Berkshires and the Worcester Hills. Scattered tree and power line damage is possible late tonight into Tuesday evening. The peak of the wind gusts will likely be early Tuesday afternoon. After a spike in temperatures into the 40s across many areas today, colder temperatures will accompany the strong wind gusts.
Rest of the Week
Due to a strong and quasi-stationary upper trough centered just east of Hudson Bay, northwest flow will bring below normal temperatures to southern New England for the rest of this week (including the coming weekend).
No major storms are anticipated the rest of this week. An upper-level trough swinging around the quasi-stationary trough east of Hudson Bay may produce a period of light snow or snow showers late Wednesday night into New Years Day morning. Moisture will be limited with this upper trough and an associated reinforcing cold front. Thus, only scattered light accumulations of under an inch are anticipated across southern New England late Wednesday night/Thursday morning.
At this time given a low probability of any major storms this week, another blog message is not likely until the scheduled weekly significant weather outlook on Monday, January 5, 2026.
Happy New Year!
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 December 29, 2025 by:
Bob Thompson
Retired National Weather Service Meteorologist
Blue Hill Observatory and Science Center Board member
