A late-season push of cool air has reminded Bostonians of a dreadfully active winter. Yesterday, Boston saw light rain with sleet mixing in at times. A low pressure system to the south has pushed a tongue of warmer air into region, causing snow to melt as it falls to the surface. After passing through the warm layer, precipitation refreezes and reaches the ground as sleet.
Today, a wintry mixture of sleet and rain will transition to all rain as warmer air works into the region. Tomorrow, winds shift to the south ahead of an approaching cold front, allowing highs to reach 61°F (16°C). The front swings through Boston Friday night, bring drier and slightly cooler conditions on Saturday. Pleasant weather should stick around through the early part of next week, with clear skies and highs in the low 60s°F (16°C).