Biting Cold and Increasing Clouds: Boston Braces for a Midweek Shift

Morning Outlook: A Frigid Start to Wednesday

Boston residents woke up to a bone-chilling morning this Wednesday, January 21, 2026. While the sun made an early appearance across the skyline, the temperatures told a much harsher story. Early morning readings hovered around a crisp 13°F, but with the wind chill factored in, it felt more like a meager 2°F for those heading out for the early commute. In the suburbs north and west of the city, lows dipped even further, reaching below-zero marks that required heavy thermal protection for anyone outdoors.

Afternoon and Evening Predictions: Increasing Clouds

As the day progresses, the clear blue skies seen at dawn will gradually give way to increasing cloud cover. Meteorologists expect temperatures to climb to a high of approximately 34°F by mid-afternoon. While this is a notable improvement from the morning's single-digit feels-like temperatures, it remains well within the typical winter chill for Massachusetts in late January. Winds will remain relatively light, shifting to the southwest at 5 to 9 mph, preventing any significant gusts from making the afternoon air feel more biting than the thermometer suggests.

The evening will see a total takeover of cloud cover as a moisture-heavy system approaches the New England coast. By late tonight and into the early hours of Thursday morning, conditions will begin to transition. After midnight, there is a 35% chance of precipitation, likely starting as a light dusting of snow before potentially turning into a rain-snow mix as the overnight low settles at a relatively mild 27°F compared to the previous night.

Alerts: The Calm Before the Weekend Storm

While today’s weather is largely manageable, the lead story for the WBZ Next Weather team remains the looming threat of a monster winter storm and an accompanying Arctic outbreak. Forecasters are tracking two pieces of atmospheric energy that are expected to merge later this week, potentially bringing a major winter storm to the region between Friday and Sunday. While today only sees a slight chance of light snow after midnight, the incoming weekend system is being described as a double winter whammy that could bring the coldest air of the season so far.

Today's Weather Snapshot

• High Temperature: 34°F
• Low Temperature: 27°F (overnight)
• Wind: Southwest at 5–9 mph
• Precipitation: Increasing clouds during the day; 35% chance of snow or rain after midnight
• Humidity: Average of 57% to 65%