Overview
- Much of the southern U.S. stays unusually mild through Christmas, with highs widely in the 60s to 70s and some areas in Mississippi and along the Gulf Coast approaching the upper 70s to near 80.
- Snow in New England is expected to begin after the Tuesday morning commute and become widespread during the evening, with about a half-inch to 2 inches in southern New England and up to roughly 6 inches in northern areas; some coastal mixing is possible.
- New Hampshire’s first call projects 1–3 inches for southern and central counties and 3–6 inches in the White Mountains and north, with the heaviest during the evening commute and tapering by daybreak Wednesday.
- Mid-Atlantic forecasts trend milder and wetter, with Baltimore expecting rain on Christmas Day and highs near the upper 40s, while parts of Ohio and western Pennsylvania warm into the 40s–50s with rain chances around the holiday.
- Gusty winds and a brief chill move through the Northeast Sunday into Monday, and forecasters caution that late-week system timing and precipitation type remain uncertain.