Overview
- Saturday brings mild sunshine for many before a cooler northwesterly flow advances on Sunday.
- The Met Office flags the Scottish Highlands, northern Scotland, the Lake District and Pennines, North Wales mountains, and Northern Ireland uplands for hill snow and wintry showers.
- Southern New England is forecast to see rain Sunday with a Monday morning rain‑snow mix, while northern New Hampshire likely picks up several inches and slippery travel.
- In the Boston area, forecasters call for slushy coatings with localized 2–3 inches south of the Mass Pike, with most accumulation on non‑paved surfaces and a hard freeze Monday night.
- Western Pennsylvania has a Sunday Severe Weather Alert Day with scattered strong to severe thunderstorms and damaging winds the primary threat, and forecasters stress remaining uncertainty on timing and amounts.